HA16117F Series

Rev.3.00 Jun 15, 2005 page 2 of 30

Pin Arrangement

8

7

6

5

P-RUN

1

2

3

4

Tadj

ACC

GND

(Top view)

RES

Pin Description

Pin No.

Symbol

Function

1

Power supply voltage input

2

P-RUN

Watchdog timer (WDT) input

3

(normal frequency range)

4

5

RES

Reset signal output from WDT and voltage supervision circuits

6

GND

Ground

7

ACC

WDT on/off control input (on when ACC is low)

8

Tadj *

Note:

The low-voltage threshold cannot be modified by changing the external resistors connected to the Tadj pin.