TC32M

DS21402B-page 4

© 2002 Microchip Technology Inc.

2.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 2-1.

TABLE 2-1:

PIN FUNCTION TABLE

Pin No.

(SOT-223, TO-92)

Symbol

Description

1

GND

Ground.

The +5V power supply input.

3RS

RESET/STROBE (Bidirectional). The open drain goes active if:

1.

2.

If pulled low by an external electronic signal or switch closure.

3.

If the watchdog is not strobed within the minimum watchdog timeout period.

4.

During power-up and power-down.

In the input mode, RS connects to a voltage level shift network (typically a resistor divider to

applied to RS.

The +5V power supply input (SOT-223 only).