S34HTS08AB Series DDR5 SPD EEPROM

Product Highlights > S34HTS08AB Series DDR5 SPD EEPROM

            S34HTS08AB Series DDR5 SPD EEPROM
                    ABLIC DDR5 SPD EEPROM is designed for stable communication with peripheral devices, achieving high compatibility
    

Image of ABLIC S34HTS08AB Series DDR5 SPD EEPROM ABLIC S-34HTS08AB supports two types of communication: I²C (3.3 V, 1.0 MHz) and I3C (1.0 V, 12.5 MHz). In addition to the temperature sensor and EEPROM functions similar to those of SPDs for DDR4, a hub function is also built-in.

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.

Features

JEDEC standard compliant SPD5118
Two-wire I²C or I3C bus serial interface
Operation voltage range (V_DDSPD): 1.7 V to 1.98 V
Operation voltage range (V_DDIO): 0.95 V to 1.05 V
Operation frequency: I²C: 1.0 MHz max. (V_DDSPD = 1.7 V to 1.98 V) I3C: 12.5 MHz max. (V_DDSPD = 1.7 V to 1.98 V)
1.0 V push-pull I/O levels
1.0 V and 3.3 V open-drain I/O levels
Operation temperature range: T_A = -40°C to +125°C
Operation temperature range: (NVM write operation) T_A = -40°C to +95°C
Interfaces to I²C/I3C buses which have multiple devices on a shared bus
Uniquely addressed with fixed addressing on the same bus
All Hubs respond to specific predefined I²C/I3C device select codes on a host interface bus
Integrates a second local I²C/I3C bus and passes through commands from a host bus onto a local bus for addressing of I² or I3C devices on the local bus
Page write: 16 bytes/page
Sequential read
Write-protect function during low power supply voltage
Write-protect individual software data protection for each of 16 blocks of 64-bytes per block
Endurance: 105 cycle / word*1(T_A = -40°C to +95°C)
Memory capacity: 8 Kb
Initial delivery state: FFh

Temperature accuracy: 0.5°C typ. (T_A= +75°C to +95°C), 1.0°C typ. (T_A= +40°C to +125°C)
Temperature sample rate: 8 samples / 5 min.
Hysteresis width: 1.0°C
Interfaces to I²C or I3C buses which have multiple devices on a shared bus
Uniquely addressed with fixed addressing on the same bus
All hubs respond to specific predefined I²C or I3C device select codes on a host interface bus
Integrates a second local I²C or I3C bus and passes through of commands from host bus onto local bus for addressing of I²C or I3C devices on local bus
Packet error check (PEC) function
Parity error check function
In-band interrupt (IBI)
Bus reset function
Up to eight unique addressing
9-pin thermally enhanced DFN package
Current consumption

EEPROM in standby mode and temperature sensor in active mode: 0.15 mA max.*2
EEPROM in read operation mode and temperature sensor in active mode: 2.0 mA max.*2
EEPROM in write operation mode and temperature sensor in active mode: 3.0 mA max.*2

Noise suppression

Schmitt trigger on input pins (HSCL, HSDA, LSDA)
Noise filter on input pins at I²C (HSCL, HSDA)