OPERATION SPI SERIAL E2PROM
S-25A640A, S-25A640B
www.sii-ic.com © Seiko Instruments Inc., 2008-2014
FOR AUTOMOTIVE 125°C OPERATION SPI SERIAL E2PR...
Description
S-25A640A, S-25A640B
www.sii-ic.com © Seiko Instruments Inc., 2008-2014
FOR AUTOMOTIVE 125°C OPERATION SPI SERIAL E2PROM
Rev.3.2_00
This IC is a SPI serial E2PROM which operates under the high temperature, at high speed, with the wide range operation for automotive components. This IC has the capacity of 64 K-bit and the organization of 8192 words × 8-bit. Page write and Sequential read are available.
Caution Before using the product in automobile control unit or medical equipment, contact to SII is indispensable.
Features
Packages
Operating voltage range Read:
2.5 V ~ 5.5 V
Write:
2.5 V ~ 5.5 V
Operation frequency S-25A640A:
5.0 MHz max.
S-25A640B:
6.5 MHz max.
Write time S-25A640A:
4.0 ms max.
S-25A640B:
5.0 ms max.
SPI mode (0, 0) and (1, 1) Page write: 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 )
Endurance*1 S-25A640A:
S-25A640B:
106 cycle / word*2 (Ta = +25°C) 5 × 105 cycle / word*2 (Ta = +125°C) 106 cycle / word*2 (Ta = +25°C) 3 × 105 cycle / word*2 (Ta = +125°C)
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
Burn-in specification:
Wafer le...
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