Automotive ICs

105°C Operation 2-wire Serial EEPROM for Automotive S-24CS01A/02A/04A H Series (1K/2K/8K-bit)

The S-24CS01A/02A/04A  H series is a high temperature operation 2-wire serial EEPROM for automotive components. The S-24CS01A/02A/04A H series has the capacity of 1 K-bit, 2 K-bit and 4 K-bit, and the organization is 128 words × 8 bits, 256 words × 8 bits and 512 words × 8 bits. 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: 2.55 V to 5.5 V (Ta = -40°C to +105°C)
Write: 2.55 V to 5.5 V (Ta = -40°C to +105°C)
Page write
8 bytes / page (S-24CS01A/02A),
16 bytes / page (S-24CS04A)
Sequential read
Operating Frequency
400 kHz (Vcc = 2.55 V to 5.5 V, at -40°C to +85°C), 350 kHz (Vcc = 2.55 V to 5.5 V, at +85°C to +105°C)
Write time
10.0 ms max. 
Write protect function during the low power supply voltage
106 cycles/word*1 (Ta = +85°C),
5 × 105 cycles/word*1 (Ta = +105°C)
Data retention
100 years (Ta = +25°C),
20 years (Ta = +105°C)
1 Kbit
2 Kbit
4 Kbit
Write protect
Initial delivery state
Operation temperature range
Ta = −40°C to +105°C 
Lead-free products (Sn 100%)
Halogen-free products

*1. For each address (Word: 8 bits)

Parts List

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