SPI Serial EEPROM S-25CM01A (1M-bit)

The S-25CM01A is a SPI serial EEPROM which operates at high speed, with low current consumption and the wide range operation. The S-25CM01A has the capacity of 1 M-bit and the organization of 131072 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
10.0 MHz ( Vcc = 2.5 V to 5.5 V )
Write time
5.0 ms max.
SPI mode ( 0, 0 ) and ( 1, 1 )
Page write
256 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 voltage
CMOS schmitt input
( CS , SCK , SI , WP , HOLD )
106cycles / unit*1 ( Ta = +25°C )
Data retention
100 years ( Ta = +25°C )
Memory capacity
1 M-bit
Initial shipment data
FFh, SRWD = 0, BP1 = 0, BP0 = 0
Lead-free ( Sn 100% ) , halogen-free*2

*1. For each unit ( unit : the 4 bytes with the same address of A16 to A2 )
*2. Refer to " Product Name Structure " of the data sheet for details.

Parts List

  • U(Ux), S and G at the end of the product name of ABLIC Inc. were used to indicate different material specifications as “environmental code”,
    however, these have now been unified into “lead-free and halogen-free” and are identical in terms of environmental quality.
  • Note: Lead-free plating other than 100% Sn is applied to some limited old products, therefore, please contact our sales representatives for details.
  • 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.