DDR5 SPD EEPROM
with Hub Built-In Temperature Sensor

S-34HTS08AB

big-banner

SPD Hub ideal for DDR5 DIMMs


  • JEDEC standard compliant: SPD5118
    SPD Hub supporting I2C & I3C communication

  • Contribute to flexible purchasing
    easy to combine with peripheral devices from other companies.

  • Stable communication is achieved
    by input and output circuits.

DDR5 SPD EEPROM
with Hub built-in temperature sensor

S-34HTS08AB

Buy Online

chip1stop corestaff digikey mouser

SPD Hub Ideal for DDR5 DIMMs Supporting I2C & I3C Communication

SPD Hub Supporting I2C & I3C Communication
(JEDEC Standard Compliant: SPD5118)

SPD Hub Supporting I2C & I3C Communication(JEDEC Standard Compliant: SPD5118)

The S-34HTS08AB supports two types of communication: I2C (3.3V, 1.0MHz) and I3C (1.0V, 12.5MHz). In addition to the temperature sensor and EEPROM functions similar to those of SPDs for DDR4, a new Hub function is also built-in.
These allow for compatibility with a wide range of DDR5 DIMMs, including those for client and server.

Contributing to Flexible Purchasing

Contributing to Flexible Purchasing

The S-34HTS08AB is designed for stable communication with peripheral devices, achieving high compatibility.
In DIMM module design, it is easy to combine with peripheral devices from other companies, contributing to flexible purchasing. This S-34HTS08AB has been highly evaluated in customer combination evaluations.

Stable Communication is Achieved

Stable Communication is Achieved
  • The input circuit
  • The output circuit

The S-34HTS08AB is equipped with a circuit that controls communication waveforms in the input and output circuits.
The input circuit provides a dead time for input waveform shaking (time when the input circuit does not respond to shaking), thereby achieving communication noise countermeasures. This suppresses communication delays caused by general filtering.
The output circuit is equipped with overshoot/undershoot suppression. It contributes to stable communication with peripheral devices.

Stable Communication is Achieved

Stable Communication is Achieved
  • The input circuit
  • The output circuit

The S-34HTS08AB is equipped with a circuit that controls communication waveforms in the input and output circuits.
The input circuit provides a dead time for input waveform shaking (time when the input circuit does not respond to shaking), thereby achieving communication noise countermeasures. This suppresses communication delays caused by general filtering.
The output circuit is equipped with overshoot/undershoot suppression. It contributes to stable communication with peripheral devices.

Applications

  • DDR5 DIMM for data center and server (RDIMM, LRDIMM, NVDIMM)
  • DDR5 DIMM for client (SODIMM, UDIMM)

Product Lineup of Serial Presence Detect (SPD) EEPROMs for DIMMs

Specifications

Product name S-34HTS08AB
for DDR5 DIMM
Operation voltage (VDDSPD) 1.7V to 1.98V
Operation voltage (VDDIO) 0.95V to 1.05V
Operation frequency I2C: 1.0MHz max. (VDDSPD = 1.7V to 1.98V)
I3C: 12.5MHz max. (VDDSPD = 1.7V to 1.98V)
Operation temperature range Ta = -40°C to +125°C
Operation temperature range (NVM Write Operation) Ta = -40°C to +95°C
Temperature accuracy 0.5°C typ. (Ta = +75°C to +95°C)
1.0°C typ. (Ta = +40°C to +125°C)
Memory capacity 8K-bit
Endurance 105 cycle / word (Ta = -40°C to +95°C)
Current consumption EEPROM in standby mode and temperature sensor in active mode: 0.15mA max. (VDDSPD = 1.8V)
EEPROM in read operation mode and temperature sensor in active mode: 2.0mA max. (VDDSPD = 1.8V)
EEPROM in write operation mode and temperature sensor in active mode: 3.0mA max. (VDDSPD = 1.8V)
Package DFN-8(2030)B
Datasheet

Datasheet

Buy Online

S-34HTS08AB

chip1stop corestaFF ONLINE Digi-Key MOUSER