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.

For further reading
“Difference between DDR5 and DDR4”

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.

• 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.

• 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.