Automotive ICs

105°C Operation SPI Serial EEPROM for Automotive S-25C010A/020A/040A H Series (1K/2K/4K-bit)

The S-25C010A/020A/040A  H series devices are hightemperature operation SPI serial EEPROMs for automotive components. The S-25C010A/020A/040A  H series has the capacity of 1 K-bit, 2 K-bit, and 4 K-bit, and the organization is 128 words × 8-bit, 256 words × 8- bit, and 512 words × 8- bit, respectively.
Page write and sequential read are available.

Caution: Before using the product in automobile control unit or medical equipment, it is imperative to contact our sales representatives.


Operating voltage range:
Read: 2.5 V to 5.5 V
Write: 2.5 V to 5.5 V
Operation frequency
6.5 MHz (4.5 V to 5.5 V)
Write time
4.0 ms max. 
SPI mode (0, 0) and (1, 1)
Page Write
16 bytes / page
Sequential read
Monitors Write to the memory by a status register
Write protect
Software, Hardware
Protect area: 25%, 50%, 100%
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 )
106cycles/word*1 (Ta = +85°C),
8 × 105 cycles/word*1 (Ta = +105°C)
Data retention
100 years (Ta = +25°C)
50 years (Ta = +105°C)
Memory capacitance
S-25C010A 1 K-bit
S-25C020A 2 K-bit
S-25C040A 4 K-bit
Initial delivery state
FFh, BP1 = 0, BP0 = 0
Operation temperature range
Ta = −40°C to +105°C 
Lead-free, Sn 100%, halogen-free
AEC-Q100 qualified*2 

*1. For each address (Word: 8 bits)
*2. Contact our sales representatives for details.

Parts List

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  • The information herein is subject to change without notice.