TC1271ALCVCTTR View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC1271ALCVCTTR

Voltage Supervisor with Manual Reset Input

Microchip Technology 

TC1270A/70AN/71A

TABLE 3-1: PINOUT DESCRIPTION (CONTINUED)

Pin Number

TC1270A TC1270AN TC1271A

(Push-Pull, (Open-Drain, (Push-Pull,

active low) active low) active high)

Sym

Pin

Standard Function

Buffer

Type /

Driver

3

3

—

3

3

MR

I ST (1) Manual Reset input pin

This input allows a push button switch to be

directly connected to the

TC1270A/70AN/71A’s MR pin, which can then

be used to force a system Reset. The input fil-

ter (ignores) noise pulses that occur on the

MR pin.

H = Switch is open (internal pull-up resistor

pulls signal high). State of the RST/RST

pin determined by other system condi-

tions.

L = Switch is depressed (shorted to ground).

This forces the RST/RST pin Active.

2

4

—

2

4 VDD — Power Supply Voltage

1—

—

1 — NC — — No Connection

Note 1: The MR pin has an internal weak pull-up (18.5 kΩ typical).

© 2007 Microchip Technology Inc.

DS22035B-page 15

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