TC32M(2002) Ver la hoja de datos (PDF) - Microchip Technology

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TC32M
(Rev.:2002)

ECONOMONITOR™ – 3-Pin System Supervisor with Power Supply Monitor and Watchdog

Microchip Technology 

TC32M

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)

1

2

3

4

Symbol

GND

VDD

RS

VDD

Description

Ground.

The +5V power supply input.

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

1. VDD falls below 4.5V nominal.

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

VDD.) The watchdog timer is reset when processor causes a voltage level ≤ VSTL to be

applied to RS.

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

DS21402B-page 4

© 2002 Microchip Technology Inc.

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