Automotive ICs

105°C Operation 2-wire Serial EEPROM for Automotive S-24C128C H Series (128K-bit)

The S-24C128C  H series is a high temperature operation 2-wire serial EEPROM for automotive components. The S-24C128C  H series has the capacity of 128 K-bit, and the organization is 16384 words × 8-bit. 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
Page write
64 bytes / page
Sequential read
Operation frequency
400 kHz (Vcc = 2.5 V to 5.5 V)
Write time
5.0 ms max. 
Noise suppression Schmitt trigger and noise filter on input pins (SCL, SDA)
Write protect function during the low power supply voltage
106cycles/word*1 (Ta = +25°C),
3 × 105cycles/word*1 (Ta = +85°C),
2 × 105cycles/word*1 (Ta = +105°C)
Data retention
100 years (Ta = +25°C),
30 years (Ta = +85°C),
25 years (Ta = +105°C)
Memory capacitance
128 K-bit
Write protect
Initial delivery state
Operation temperature range
Ta = −40°C to +105°C 
Lead-free product (Sn 100%)
Halogen-free product
AEC-Q100 qualified*2 

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