For Automotive 125°C Operation 2-Wire Built-in Quartz Crystal Convenience Timer S-35710M

Available Applications
Automotive ICs are categorized according to their application. The following symbols indicate the types of applications for which an IC can be used.
Safety critical components typified by engine, transmission, suspension and ABS, and EV/HEV/PHEV related equipment, etc.
Meter, body, headlamp, ITS, etc.
Accessory, car navigation, car audio system, etc.

The convenience timer is a CMOS timer IC which operates with low current consumption, and is suitable for the time management of the relative time.
The S-35710M compares the timer value and the value written to the internal register, and outputs an interrupt signal when the values match each other.
The timer is a 24-bit binary-up counter.
The internal register data can be set freely by users via a 2-wire serial interface.
Consequently, the time before the occurrence of an interrupt signal can be set freely.
Since the S-35710M has a built-in quartz crystal, a matching assessment of the IC and the quartz crystal is unnecessary.
Moreover, the number of external parts can also be reduced.

Caution : This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the purpose, contact to SII Semiconductor Corporation is indispensable.


Built-in 32.768 kHz quartz crystal
Alarm interrupt function
Settable on the second time scale from 1 second to 194 days
(Approximately half a year)
Low current consumption
0.25 μA typ. (Vdd = 3.0 V, Ta = +25°C)
Wide range of operation voltage
1.8 V to 5.5 V
2-wire (I2C-bus) CPU interface
Operation temperature range
Ta = −40°C to +125°C
Lead-free (Sn 100%), halogen-free
AEC-Q100/Q200 qualified*1

*1. Contact our sales office for details.


  • Time management of various systems during the sleep period