S-25A640B
Key Features
- Operating voltage range Read: 2.5 V ~ 5.5 V Write: 2.5 V ~ 5.5 V
- Sequential read
- Write protect: Protect area: 32 bytes / page Software, Hardware 25%, 50%, 100%
- Monitoring of a write memory state by the status register
- Function to prevent malfunction by monitoring clock pulse
- Write protect function during the low power supply voltage
- CMOS schmitt input ( CS , SCK, SI, WP , HOLD )
- Data retention: 100 years (Ta = +25°C) 50 years (Ta = +125°C)
- Memory capacity: 64 K-bit
- Initial delivery state: FFh, SRWD = 0, BP1 = 0, BP0 = 0
