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xSPI (8x SPI)
SPI, Dual, Quad
1.8V, 3.0V. Wide VCC
Ultra-low Energy, Low Power
Known Good Die program
Up to 125°C operating temperature
All voltage levels
- Wide Voltage 1.65V to 3.6V
2 weeks ago
Detecting #WP pin state on AT25FF321A and AT25SF321BPosted by uzer 10 points 1 reply
For both the AT25FF321A and AT25SF321B that are configured for hardware protection with the #WP pin (SRP1,0 = 01) what is the lowest impact way of detecting the state of the #WP pin (ability to write to status registers)?
As most of the R/W status register bits are related to configuring protection then if they are modified to test the ability to write the status registers then any change will need reverting afterwards, leading to a R,W,R,W sequence.