Bluetooth low energy
SmartBond™: power, size and system cost without compromise
Bluetooth® low energy is the de facto low power standard for connecting devices to each other and to the cloud. Highly integrated, the SmartBond™ SoC family features the smallest, most power efficient Bluetooth low energy solutions available and enables the lowest system costs. An extensive suite of support tooling ensures ease of use and a fast route to market.
| Part Number | DA14699/7/5/1 | DA14683 | DA14682 | DA14586 | DA14585 | DA14531/0 | DA14531MOD | |
| Product Description | The world’s most advanced wireless microcontroller product family | Single-chip high-security Bluetooth 5 solution with expandable memory | Small size, low power and most integrated Bluetooth 5 SoC | The world’s smallest and lowest power Bluetooth 5.1 System-on-Chip which enables the next 1billion IoT devices | The DA14531 SmartBond TINY™ Module, based on the world’s smallest and lowest power Bluetooth 5.1 system-on-Chip | |||
|
TYPE
|
SoC | ● | ● | ● | ● | |||
| SiP | ● | ● | ||||||
| Module | ● | |||||||
|
TECHNOLOGY
|
Bluetooth® LE | 5.2 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 |
| 2.4 GHz proprietary | ● | |||||||
|
CORE SYSTEM
|
CPU | 96MHz Arm Cortex-M33 Floating Point DSP Extension |
96MHz Arm Cortex-M0 |
96MHz Arm Cortex-M0 |
16MHz Arm Cortex-M0 |
16MHz Arm Cortex-M0 |
16MHz Arm Cortex-M0+ |
16MHz Arm Cortex-M0+ |
| RAM | 512kB 384kB (691) |
128kB | 128kB | 96kB | 96kB | 48kB | 48kB | |
| ROM OTP |
128kB 4kB |
128kB 64kB |
128kB 64kB |
128kB 64kB |
128kB 64kB |
144kB 32kB |
144kB 32kB |
|
| Flash | QSPI Flash | QSPI Flash | 1024kB | 256kB | SPI Flash | SPI Flash | 128kB | |
| Crystals | 32MHz+32kHz | 32/16MHz+32kHz | 32/16MHz+32kHz | 16MHz+32kHz | 16MHz+32kHz | 32MHz | 32MHz | |
|
POWER
|
Internal DCDC | Buck | Buck | Buck | Buck&Boost | Buck&Boost | Buck&Boost ○ | Buck |
| External System Power Rails | 2x1.8V, 1x3.3V | 2x1.8V, 1x3.3V | 2x1.8V, 1x3.3V | |||||
| Charger | ● ● ● ○ | ● | ● | |||||
|
SECURITY
|
AES/SHA | 256/512 | 256/512 | 256/512 | 128 | 128 | 128 | 128 |
| ECC/TRNG | ● ● | ● ● | ● ● | ○ ● | ○ ● | |||
| Secure Key Handling | ● | ● | ● | |||||
|
RADIO
|
Frequency | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz | 2.4GHz |
| Tx Power | 6dBm | 0dBm | 0dBm | 0dBm | 0dBm | 2.5dBm | 2.2dBm | |
| Rx Sensitivity | -97dBm | -94dBm | -94dBm | -93dBm | -93dBm | -94dBm | -94dBm | |
|
PERIPHERALS
|
UART/SPI/I2C | 3/2/2 | 2/2/2 | 2/2/2 | 2/1/1 | 2/1/1 | 2/1/1 | 2/1/1 |
| QSPI XiP On-the-fly decryption |
2/2/2/1 ● |
1 ○ |
1 ○ |
|||||
| USB FS/HS | 1 ○ | 1 ○ | 1 ○ | |||||
| Timers/PWM/RTC | 4/4/1 | 3/3 | 3/3 | 4/2 | 4/2 | 3/2/1 | 3/2/1 | |
| I2S,PCM/PDM | 8CH/2CH | 8CH/2CH | 8CH/2CH | 8CH/2CH | 8CH/2CH | |||
| LCD | ● ● ● ○ | |||||||
| Keyboard/QDEC/IR | ● ● ● | ● ● ● | ● ● ○ | ● ● ○ | ● ● ○ | ● ● ○ | ||
| ADC | 8CH 10b 8CH 14b |
8CH 10b | 8CH 10b | 4CH 10b | 4CH 10b | 4CH 10b | 4CH 10b | |
| LED driver | 2 2 ○ ○ | 3 | 3 | |||||
| Temperature sensor | ● | ● | ● | ● | ● | |||
| Other | Haptics / Motor Controller | |||||||
|
APPLICATIONS
|
Appliances | ● | ● | ● | ● | ● | ● | ● |
| Asset Tracking | ● | ● | ● | ● | ● | |||
| Beacons | ● | ● | ● | ● | ||||
| Consumer Electronics | ● | ● | ● | ● | ● | ● | ● | |
| Direction finding | ● | |||||||
| Gaming and AR/VR | ● | ● | ● | |||||
| Industrial Automation | ● | ● | ● | ● | ||||
| Medical and Healthcare | ● | ● | ● | ● | ● | ● | ● | |
| MESH networks | ● | ● | ● | |||||
| PC Peripherals | ● | ● | ● | ● | ● | ● | ● | |
| Smart Home and Building | ● | ● | ● | ● | ● | ● | ● | |
| Wearables | ● | ● | ● | ● | ● | ● | ||
| Wireless Ranging (WiRa) | ● | |||||||
| Smart door-locks | ● | ● | ● | |||||
| IoT sensors | ● | ● | ● | ● | ● | ● | ● | |
|
PACKAGES
|
Type#Pins (#GPIO) Dimensions |
VFBGA100 (55) 5x5 mm (699/697) |
WLCSP53 (21) 3.41x3.01 mm AQFN60 (37) |
AQFN60 (31) 6x6 mm |
QFN40 (24) 5x5 mm |
WLCSP34 (14) 2.40x2.66 mm QFN40 (25) |
WLCSP17 (6) 1.7x2.05 mm (531 only) |
MOD16 (9) 12.5x14.5 mm |
| Operating Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85/105°C | -40 to 85°C | -40 to 85°C | |
| Supply Voltage Range | 2.4 to 4.75V | 1.7 to 4.75V | 1.7 to 4.75V | 0.9 to 3.3V | 0.9 to 3.3V | 1.1 to 3.3V | 1.8 to 3.3V | |
| DEVELOPMENT KITS | DA14695 PRO DA14695 USB |
DA14683 PRO DA14683 USB |
DA14683 PRO DA14683 USB |
DA14585 PRO DA14585 BASIC |
DA14585 PRO DA14585 BASIC |
DA14531/0 PRO DA14531 USB | DA14531MOD PRO | |
| Read more |
| Read more |
| DA14680/1 | Not Recommended for New Designs; For Improved Performance – See DA14682/3 |
| DA14580/1/2/3 | Not Recommended for New Designs; For Improved Performance – See DA14585/6 and DA14530/1 |
A faster way to new Bluetooth® applications
Swedish IoT company Smart Sensor Devices AB believes developing new Bluetooth applications should be as easy as using them. That’s why they created the BleuIO Bluetooth Low Energy USB dongle using Dialog’s Bluetooth SoCs– a smart, highly integrated device that lets developers create new Bluetooth LE 5.0 applications with minimal effort.
Motion Aware Thin Bluetooth® Low Energy Beacon Solution for Smart Labels
A beacon is a tiny Bluetooth radio battery-powered transmitter. Beacons provide an inexpensive broadcasting solution capable of autonomous operation over very long periods of time. In this paper, we will show how beacons can support extended functionality by employing a range of peripherals to allow them to process and display data while maintaining autonomous operation.
Smart devices that don’t need charging?
Smartcube Co. produces modular chips that convert everyday objects like sport shoes and ID badges into smart, connected IoT devices. Remarkably, they aim to produce chips that are so energy-efficient, the resulting devices never need charging! Dialog’s SmartBond Bluetooth low energy range is helping them achieve their power consumption goals at low cost while delivering excellent reliability.
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Inquiries Distributors and Representatives Register for newsletters| Product ID | Application | Standard | Memory size FLASH (Mb) | Memory size ROM (kB) | Memory size OTP (kB) | Memory size RAM (kB) | GPIOs (max) | Power supply min (V) | Power supply max (V) | Tx current (mA) | Rx current (mA) | Output power (dBm) | Sensitivity (dBm) | Microcontroller | Recommended for new Designs | Package | Max system clock (MHz) | Flexible system clock | Execute from FLASH | HW crypto engine | QSPI | SPI | UART | I2C | USB | PDM | Documents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DA14580-01UNA | Beacon & Proximity Health & Fitness Human Interface Devices Smart Home | BLE 4.2 Core specification | 0 | 84 | 32 | 50 | 14 | 0.9 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | No | WL-CSP34,2.5*2.5*0.5mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
| DA14580-01AT2 | Beacon & Proximity Health & Fitness Human Interface Devices Smart Home | BLE 4.2 Core specification | 0 | 84 | 32 | 50 | 24 | 0.9 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | No | QFN40,5*5*0.9mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
| DA14580-01A32 | Beacon & Proximity Health & Fitness Human Interface Devices Smart Home | BLE 4.2 Core specification | 0 | 84 | 32 | 50 | 32 | 0.9 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | No | QFN48,6*6*0.9mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
| DA14581-00UNA | Wireless Charging Host Controller Interface | BLE 4.2 Core specification | 0 | 84 | 32 | 50 | 14 | 0.9 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | No | WL-CSP34,2.5*2.5*0.5mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
| DA14581-00000VRA | Wireless Charging Host Controller Interface | BLE 4.2 Core specification | 0 | 84 | 32 | 50 | 14 | 0.9 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | No | WL-CSP34,2.5*2.5*0.3mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
| DA14581-00AT2 | Wireless Charging Host Controller Interface | BLE 4.2 Core specification | 0 | 84 | 32 | 50 | 24 | 0.9 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | No | QFN40,5*5*0.9mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
| DA14583-01F01AT2 | Beacon & Proximity Health & Fitness Human Interface Devices Smart Home | BLE 4.2 Core specification | 1 | 84 | 32 | 50 | 24 | 2.35 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | No | QFN40,5*5*0.9mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
| DA14585-00000VV2* | Beacon & Proximity Health & Fitness Human Interface Devices Smart Home Remote Controls with voice commands over BLE | BLE 5.0 Core specification + supplemental features | 0 | 128 | 64 | 96 | 14 | 0.9 | 3.6 | 4.8 | 5.1 | 0 | -93 | M0 | Yes | WL-CSP34,2.4*2.66*0.5mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 1 | Documentation |
| DA14585-00000AT2* | Beacon & Proximity Health & Fitness Human Interface Devices Smart Home Remote Controls with voice commands over BLE | BLE 5.0 Core specification + supplemental features | 0 | 128 | 64 | 96 | 25 | 0.9 | 3.6 | 4.9 | 5.3 | 0 | -93 | M0 | Yes | QFN40,5*5*0.9mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 1 | Documentation |
| DA14586-00F02AT2* | Beacon & Proximity Health & Fitness Human Interface Devices Smart Home Remote Controls with voice commands over BLE | BLE 5.0 Core specification + supplemental features | 2 | 128 | 64 | 96 | 24 | 1.8 | 3.6 | 4.9 | 5.3 | 0 | -93 | M0 | Yes | QFN40,5*5*0.9mm | 16 | No | No | Yes | 0 | 1 | 2 | 1 | 0 | 1 | Documentation |
| DA14680-01F08A92 | Wearables Smart Home Apple HomeKit Human Interface Devices Other rechargeable device | BLE 4.2 Core specification + optional features | 8 | 128 | 64 | 128 | 31 | 1.7 | 4.75 | 5.2 | 6 | 0 | -94 | M0 | No | AQFN60,6*6*0.8mm | 96 | Yes | Yes | Yes | 0 | 2 | 2 | 2 | 1 | 1 | Documentation |
| DA14681-01000U2 | Wearables Smart Home Apple HomeKit Human Interface Devices Other rechargeable device | BLE 4.2 Core specification + optional features | 0 | 128 | 64 | 128 | 21 | 1.7 | 4.75 | 5.2 | 6 | 0 | -94 | M0 | No | WL-CSP53,3.4*3.0*0.5mm | 96 | Yes | Yes | Yes | 1 | 2 | 2 | 2 | 1 | 1 | Documentation |
| DA14681-01000A92 | Wearables Smart Home Apple HomeKit Human Interface Devices Other rechargeable device | BLE 4.2 Core specification + optional features | 0 | 128 | 64 | 128 | 37 | 1.7 | 4.75 | 5.2 | 6 | 0 | -94 | M0 | No | AQFN60,6*6*0.8mm | 96 | Yes | Yes | Yes | 1 | 2 | 2 | 2 | 1 | 1 | Documentation |
| DA14682* | Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications | BLE 5 | 8 | 128 | 64 | 128 | 31 | 1.7 | 4.75 | 5.2 | 6 | 0 | -94 | M0 | Yes | AQFN60,6*6*0.8mm | 96 | Yes | Yes | Yes | 0 | 2 | 2 | 2 | 1 | 1 | Documentation |
| DA14683* | Industrial Human Interface Devices Virtual reality remotes Banking | BLE 5 | 0 | 128 | 64 | 128 | 37 | 1.7 | 4.75 | 5.2 | 6 | 0 | -94 | M0 | Yes | AQFN60,6*6*0.8mm | 96 | Yes | Yes | Yes | 1 | 2 | 2 | 2 | 1 | 1 | Documentation |
| DA14691-00000HQ2* | Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications | BLE 5.0 Core specification + optional features | Optional external | 128 | 4 | 384 | 44 | 2.4 | 4.75 | 3.5 | 2.2 | 6 | -97 | M33 | Yes | VFBGA86, 6 x 6 x 0.55 mm | 96 | Yes | Yes | Yes | 1 | 2 | 3 | 2 | 1 | 1 | Documentation |
| DA14695-00000HQ2* | Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications | BLE 5.0 Core specification + optional features | Optional external | 128 | 4 | 512 | 44 | 2.4 | 4.75 | 3.5 | 2.2 | 6 | -97 | M33 | Yes | VFBGA86, 6 x 6 x 0.55 mm | 96 | Yes | Yes | Yes | 1 | 2 | 3 | 2 | 1 | 1 | Documentation |
| DA14697-00000HR2* | Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications | BLE 5.0 Core specification + optional features | Optional external | 128 | 4 | 512 | 55 | 2.4 | 4.75 | 3.5 | 2.2 | 6 | -97 | M33 | Yes | VFBGA100, 5 x 5 x 0.475 mm | 96 | Yes | Yes | Yes | 2 | 2 | 3 | 2 | 1 | 1 | Documentation |
| DA14699-00000HR2* | Wearables Smart Home Apple HomeKit Bluetooth mesh Cloud connected applications | BLE 5.0 Core specification + optional features | Optional external | 128 | 4 | 512 | 55 | 2.4 | 4.75 | 3.5 | 2.2 | 6 | -97 | M33 | Yes | VFBGA100, 5 x 5 x 0.475 mm | 96 | Yes | Yes | Yes | 2 | 2 | 3 | 2 | 1 | 1 | Documentation |
| DA14531 | Disposables Beacons Asset tracking Connected health RCU | BLE 5.1 Core specification + supplemental features | 0 | 144 | 32 | 48 | 12 | 0.9 | 3.6 | 3.5 | 2.2 | 0 | -94 | M0 + | Yes | QFN24*2.2*3.04mm | 16 | Yes | Yes | Yes | 0 | 1 | 2 | 1 | 0 | 0 | Documentation |
*Recommended for new designs
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Get in touch with us directly through our worldwide sales offices, or contact one of our global distributors and representatives.
Inquiries Distributors and Representatives Register for newslettersWearables
Wearable electronics is entering every facet of our daily life, giving us new ways to improve our lives: from productivity to health and lifestyle. Revealing previously unattainable information about ourselves and our surroundings, they help advise us.
Proximity & Asset Tracking
Proximity applications are based on knowing and alerting you of the distance between two devices, such as keys or wallets, if the label goes out of range. Proximity information can also be used in asset tagging for inventory and automated access control or monitoring in cold chain tracking.
Connected Medical
Connected medical offers solutions in allowing patients to take care of their own health condition in monitoring, sending alerts and making drug delivery easy. Bluetooth low energy is the technology to connect health products to the cloud. Examples of connected medical products are blood pressure meters, heart rate monitors, glucose meters and patches, body temperature meters, virus testers and drug delivery with injectables or via patches through the skin.
Smart Home & Buildings
Computing & Gaming
Bluetooth has played a key role in connecting computing and gaming peripherals since its introduction. It provides a simple and proven connectivity option for a host of new and emerging peripherals, while securing access to the most personal data.
As electronic equipment becomes smarter and more mobile, the way we interact with it is changing. We want more control, more convenience and less clutter, which is driving huge growth in the wireless HID market. Bluetooth low energy is per default supported in recent versions of windows, which truly enables the wireless desktop.
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Get in touch with us directly through our worldwide sales offices, or contact one of our global distributors and representatives.
Inquiries Distributors and Representatives Register for newsletters| SmartBond™ SDK Overview | Product Supported |
|---|---|
| SDK6 | DA14585/6 + DA14531/0 |
| SDK10 | DA1469x |
| SDK1 | DA14682/3
Also available for DA14680/1 but not recommended for new designs |
| SDK5 | DA14580/1/3
Not recommended for new designs |
| SmartBond™ Development tools overview | Product Supported |
|---|---|
| Dialog Smartbond Flash Programmer | DA14531/0, DA1458x and DA1469x |
| SmartSnippets Toolbox | All |
| SmartSnippets Studio | All |
| Production Line Tool |
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Get in touch with us directly through our worldwide sales offices, or contact one of our global distributors and representatives.
Inquiries Distributors and Representatives Register for newslettersSocial distancing
Embedded Software Applications for Social Distancing Applications
Bluetooth Low Energy Range Extender
The SmartBond™ BLE Range Extender reference design enables you to take full advantage of the output power of the Bluetooth low energy standard to extend the range of your applications.
Smart USB Dongle
The Smart USB Dongle device is a fully integrated USB to Bluetooth® LE solution, based on SmartBond™ DA14683 high-security Bluetooth LE SoC.
emWin
The emWin embedded graphics library developed by SEGGER Microcontroller is now offered by Dialog Semiconductor in library form for free commercial use with the SmartBond® DA1469x wireless microcontrollers.
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Inquiries Distributors and Representatives Register for newslettersOur SmartBond products are supported by development kits and a profiling to help you create applications that exploit the unique benefits of the SmartBond family to the fullest. These tools help you minimize your time to market.
Hardware Development Kits
| DA14531 | DA14531 - USB, DA14531 - Pro |
| DA14585 | DA14585 - Basic, DA14585 - Pro |
| DA14683 | DA14683 - USB, DA14683 - Pro |
| DA14695 | DA14695 – USB, DA14695- Pro |
| All Bluetooth LE Products | Production Line Tool |
Application Focused Development Kits
| DA14585 | DA14585 IoT Multi Sensor Development Kit | |
| DA1469x, DA14531 | ||
Discontinued Kits
| DA14585 | DA14585 Voice RCU Development Kit | |
| DA14583 | DA14583 IoT Sensor Development Kit The DA14585 IoT is an upgraded sensor development kit with more supported sensors and cloud connectivity |
|
| DA14681 | DA14681 HomeKit Development Kit | |
| DA14681 | DA14681 Wearable Development Kit | |
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Get in touch with us directly through our worldwide sales offices, or contact one of our global distributors and representatives.
Inquiries Distributors and Representatives Register for newsletters |
Japan-based company mainly engaged in the manufacture and sale of electronic components and audio equipment. |
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Bithium - your partner in the design of innovative wireless embedded systems (firmware, hardware, software). Bithium keeps a clear focus on achieving project targets and customer satisfaction. |
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Cambridge Consultants is a premium multidisciplinary supplier of innovative product development engineering and technology consulting. We help clients deliver groundbreaking products to market fast, with cutting-edge technology that often results in new IP generation for our clients. |
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Cloud2GND is a global engineering services firm specializing in standards-based wireless connectivity solutions. Our clients range from innovative start-ups to large semiconductor companies and standards organizations. We offer deep domain knowledge in embedded systems, especially around Bluetooth technology, where we provide consulting, design, development, test, deployment and maintenance services for our clients and their customers. Our engineering services division offers a flexible engagement model acting as a specialized team of standards experts or a complete engineering team able to manage your project needs to completion. |
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Lauterbach is the leading manufacturer of complete, modular and upgradeable microprocessor development tools worldwide with experience in the field of embedded designs since 1979. The engineering team develops and produces highly proficient and specialized Development Tools, which are utilized all over the world under the brand TRACE32®. |
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LitePoint is the leading provider of test solutions for the world's leading manufacturers of wireless |
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Murata is a global leader in the design, manufacture and supply of advanced electronic materials, leading edge electronic components, and multi-functional, high-density modules. |
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Panasonic Industrial Devices Sales Company of America. Many products sold by Fortune 500 companies are in fact Powered by Panasonic technology, and we are proud to provide manufacturers with the performance, quality, and reliability that are synonymous with the Panasonic brand. The Power of Panasonic Industrial Devices brings strategic innovations to our customers’ product development process. |
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TDK is one of the largest electronic components manufacturers in the world. |
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Tieto is the leading product development services company enabling semiconductor, connected device and communication infrastructure manufacturers, build next generation connected devices & things, cars and networks. |
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Wireless technology experts. Xtel's core competency is technology development, which makes up a substantial part of its business. It utilizes state-of-the-art technologies to create the next product or technical platform for its partners. Among its clients, it counts some of the world’s leading tech innovators. It is typically tasked with the development of wireless technology, protocols, and ultralow power designs and products. Xtel has in-depth knowledge of the product development and maturation of wireless technologies. It typically uses proven and tested standard components or platforms, helping its partners to reduce time to market. Where a technology boost is needed, it develops complete products or assist a development team in the company. Its technological solutions and innovative skills are recognized by its partners. |
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Quuppa is a leading technology provider for real-time locating systems (RTLS) and indoor positioning systems (IPS). The company was established in 2012 by a team of experienced engineers and scientists as a spin-off from Nokia Research Center and has since successfully commercialised its offering, creating a complete product platform: the Quuppa Intelligent Locating System™, a one-size-fits-all technology platform for location-based services and applications. Our platform offers companies a complete software suite of tools for planning, simulating and commissioning projects, that can be used as a solid and scalable foundation for building various location-based solutions. The open API makes it fast and easy to take the platform into use. To date, the Quuppa Ecosystem has more than 200 partners around the world who use Quuppa’s open, versatile and reliable positioning platform to deliver accurate, real-time and cost-effective location solutions to companies in a range of industries, including manufacturing and logistics, retail, healthcare, sports, law enforcement and security, government, asset tracking. |
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DA14530 and DA14531
1 week ago
DA14531 info
Posted by Javv 30 points 3 repliesHello, I'm insterested in the DA14531 chip but I would like to know if we can't upload code to its 128Kbytes Flash memory, do we necessarily need the 1MB chip?
1 week ago
Hello AA_Dialog,
Actually I'm interested in the bare DA14531 chip to build a custom board, but since I need to do a firmware and also save 2 files of configuration it seems that I need the external memory.
I've read the DA14531's flash pdf https://www.dialog-semiconductor.com/sites/default/files/2021-02/AN-B-0…
And there is a " GD25WD40CTIG GigaDevice " module with 4MB so I found the 8MB module version " GD25Q80CEIGR GigaDevice " https://datasheet.lcsc.com/lcsc/1912171413_GigaDevice-Semicon-Beijing-G…
That 8MB module does not figure in your selector guide but should be compatible, isn't it?.
The second question is about the Crystal Oscillator, the hardware desing guidelines recommends to trim the crystal, does it means to not use external capacitors? in that case is cool because less components = more room, and it seems we have to use tested crystals.
Third question is about the OTP, I decided to use an external memory, can be the OTP empty or do we have to flash it too? because I've read that memory can be written just once, by the way the DA14531 doesn't have like a default code in case your firmware gets corrupted during flashing the chip and make it possible to try flash it again? or that isn't necessary and the DA14531 can be flashing again without problems.
Sorry for too much questions.
accepted answer!
1 week ago
Hi Javv,
This GD25Q80CEIGR flash has not been tested on our side, from the specification it seems that it should be compatible. You can try it on your side and let us know.
Please note that the code is mirrored from the SPI flash to the SystemRAM upon boot. This means that the entirety of the code will need to fit in the 48KBs of RAM leaving space for BLE operations and buffers. That leaves about ~40KB for user code and data. Since 8Mbits are much larger than 40KB do you have the need for this much extra flash space?
Regarding the oscillator trimming please refer to pages 20-23 of the hardware guidelines
Specifically, for the 32MHz oscillator it can be seen in Table 10, page 20 that no external capacitors are required for the load capacitance.
Please also check the minimal system pcb layout in the same guide (page 34), also containing no capacitors for the 32MHz oscillator.
There is no need to write the OTP if you don’t intend to use it, so it can be empty. You can refer to the BootROM sequence, pages 63-66 of the user manual
https://www.dialog-semiconductor.com/sites/default/files/2021-09/DA14531_datasheet_3v4.pdf
Depending on the value of the application flags in the OTP, the system will either boot from the OTP or will start scanning for serial devices to boot from (default). You can also refer to the Booting from OTP and Serial Interfaces guide for more information
As can be seen in page 5, Table 1 of the guide the booting sequence has multiple steps to boot from different interfaces. In case something goes wrong you can reload code to the DA14531 SystemRam using one of the other serial interfaces.
Best regards,
AA_Dialog
1 week ago
Hello Javv,
Thank you for your online forum question.
There is a DA14531 soc and a DA14531MOD that is built with the DA14531 soc. The DA14531 device on itself doesn’t have flash memory, while the DA14531MOD consists of the DA14531 + 1Mbit flash memory as can be seen in the picture below
Which of the two devices interests you? In case you have no use for the DA14531MOD’s 1Mbit Flash memory you could just use the DA14531 device. The DA14531 device has an internal OTP memory in that can be used for code storage.
Please let us know if your requirements were misunderstood or if you have any follow-up questions.
Best regards,
AA_Dialog