SPI-Bus Serial EEPROM S-25C010A/020A/040A

The S-25C010A/020A/040A is SPI serial E2PROM which operate at high speed, with low current consumption and the wide range operation. The S-25C010A/020A/040A has the capacity of 1 K-bit, 2 K-bit, 4 K-bit and the organization of 128 words × 8-bit, 256 words × 8-bit, 512 words × 8-bit. Page write and sequential read are available.


Operating voltage range
Read: 1.6 V to 5.5 V
Write: 1.7 V to 5.5 V
Operation frequency
5.0 MHz (Vcc = 2.5 to 5.5 V)
Write time
4.0 ms Max.
SPI mode (0, 0) and (1, 1)
Page Write
16 bytes / page
Sequential read
Page Write
Software, Hardware
Protect area: 25%, 50%, 100%
Monitors Write to the memory by a status register
Function to prevent malfunction by monitoring clock pulse
Write protect function during the low power supply
CMOS schmitt input( CS , SCK, SI, WP , HOLD )
106cycles / word*1 (Ta = +25°C)
Data retention
100 years (Ta = +25°C)
Memory capacity
S-25C010A: 1 K-bit
S-25C020A: 2 K-bit
S-25C040A: 4 K-bit
Initial shipment data
FFh, BP1 = 0, BP0 = 0
Lead-free, Sn 100%, halogen-free*2

*1. For each address (Word: 8-bit)
*2. Refer to “Product Name Structure” of the data sheet for details.

Parts List

  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
  • The information herein is subject to change without notice.