FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER

S-35710 Series

5



Pin Functions

1. SDA (I/O for serial data) pin

This is a data input / output pin for I

pulse from the SCL pin. This pin has CMOS input and Nch open-drain output. Generally in use, the SDA pin is pulled

open collector output.

2. SCL (Input for serial clock) pin

This is a clock input pin for I

3. RST

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(Input for reset signal) pin

This pin inputs the reset signal. The timer is reset when inputting "L" to the RST

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pin. The INT pin is set to "H" when

inputting "H" to the RST

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pin, and the timer starts the operation. The RST

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pin has a built-in chattering elimination

circuit. Regarding the chattering elimination circuit, refer to " RST

_______

Pin".

Also, the RST

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pin with / without a pull-up resistor can be selected.

4. INT (Output for interrupt signal) pin

This pin outputs an interrupt signal. The interrupt signal is output when the time written to the wake-up time register

comes. The interrupt signal output (time-out type) of one-shot loop time-out / handshake time-out can be selected as

the option. Regarding the operation of the interrupt signal output, refer to " INT Pin Interrupt Signal Output".

Also, the INT pin output form of Nch open-drain output / CMOS output can be selected.

5. XIN, XOUT (Connection for crystal oscillator) pins

Connect a crystal oscillator between the XIN pin and the XOUT pin.

6. VDD (Positive power supply) pin

Connect this pin with a positive power supply. Regarding the values of voltage to be applied, refer to

" Recommended Operation Conditions".

7. VSS pin

Connect this pin to GND.