FM25V40 f-ram equivalent, 4-mbit (512k x 8) serial (spi) f-ram.
* 4-Mbit ferroelectric random access memory (F-RAM) logically organized as 512 K × 8
* High-endurance 100 trillion (1014) read/writes
* 10-year data retention.
requiring frequent or rapid writes. Examples range from data collection, where the number of write cycles may be critic.
CS
Input
Chip Select. This active LOW input activates the device. When HIGH, the device enters low-power
standby mode, ignores other inputs, and the output is tristated. When LOW, the device internally
activates the SCK signal. A falling edge on.
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