2-wire Serial EEPROM With Temperature Sensor For DIMM Serial Presence Detect S-34TS04A

This IC is a 2-wire serial E2PROM with temperature sensor for DIMM serial presence detect which operates in 2.2 V to 3.6 V voltage ranges. This IC has the capacity of 4 K-bit and the organization of 2 pages × 256-word × 8-bit. Page write and sequential read are available.
This IC operates with the I2C-bus at 1.0 MHz maximum.
A substantial reduction in current consumption may be achieved by using the software programmed shutdown mode which can be set by the I2C-bus.


E2PROM block

Page write
16 bytes / page
Sequential read
Write protect function during low power supply voltage
Write protect
Individual software data protection for each of four 128-byte blocks
106 cycle / word*1 (Ta = +25°C)
Data retention
100 years (Ta = +25°C)
Memory capacity
4 K-bit
Initial delivery state

Temperature sensor block

Temperature accuracy
0.5°C typ. (Ta = +75°C to +95°C)
1.0°C typ. (Ta = +40°C to +125°C)
Temperature sample rate
8 samples / s min.
Selectable hysteresis width
No hysteresis, 1.5°C, 3.0°C, 6.0°C


JEDEC standard compliant
Current consumption
E2PROM in standby mode and temperature sensor in shutdown mode: 3.0 μA max.
E2PROM in standby mode and temperature sensor in active mode: 0.1 mA max.
E2PROM in read operation mode and temperature sensor in active mode: 0.4 mA max.
E2PROM in write operation mode and temperature sensor in active mode: 2.0 mA max.
Operation voltage range
2.2 V to 3.6 V
Operation frequency
1.0 MHz max. (VDD = 2.2 V to 3.6 V)
Noise suppression
Schmitt trigger and noise filter on input pins (SCL, SDA)
Operation temperature range
Ta = -20°C to +125°C
Lead-free (Sn 100%), halogen-free

*1. For each address (Word: 8-bit)

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.