TC32M_06 MICROCHIP [Microchip Technology], TC32M_06 Datasheet

TC32M_06

Manufacturer Part Number

TC32M_06

Description

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

Manufacturer

MICROCHIP [Microchip Technology]

Datasheet

1.TC32M_06.pdf (12 pages)

Current page: 1 of 12
Download datasheet (254Kb)

Features:

• Incorporates the Functionality of the Industry

• Guards Against Unstable Processor Operation

• Automatically Halts and Restarts an Out-of-

• Output can be Wire-ORed, or Hooked to Manual

• Space-Saving 3-Pin TO-92 or SOT-223 Package

Applications:

• All Microprocessor-Based Systems

• Battery Powered Computers and Controllers

• Automotive Systems

• Intelligent Instruments

• Critical Processor Monitoring

• Embedded Controllers

Device Selection Table

Package Type

TC32MCDB

TC32MCZB

TC32MEDB

TC32MEZB

Part Number

Standard TC1232 (Processor Monitor, Watchdog

and Manual Override Reset Controller) into a

Small, Lower Cost Package

Resulting from Power “Brown-Out”

Control Microprocessor

Reset Push-button Switch

TC32MCZB

TC32MEZB

ECONOMONITOR™ – 3-Pin System Supervisor with

2 3

Package

SOT-223

TO-92

Power Supply Monitor and Watchdog

GND

-40°C to +85°C

Temp. Range

0°C to +70°C

TC32MCDB

TC32MEDB

General Description:

The TC32M is a fully-integrated processor supervisor

in a 3-pin package. It provides three important func-

tions to safeguard processor sanity: precision power

on/off Reset control, Watchdog Timer and external

Reset override.

On power-up, the TC32M holds the processor in the

Reset state for a minimum of 500 msec after V

within tolerance to ensure a stable system start-up.

Microprocessor sanity is monitored by the on-board

Watchdog circuit. The microprocessor must provide a

high-to-low level shift (through an external resistor

divider) on the RS pin of the TC32M. Should the

processor fail to supply this signal within the specified

time-out period (typically 700 msec), an out-of-control

processor is indicated and the TC32M issues a

processor Reset as a result.

The output of the TC32M can be wire-ORed with a

push-button switch (or electronic signal) to override the

TC32M and unconditionally reset the processor. When

connected to a push-button switch, the TC32M

provides contact debounce.

The TC32M is packaged in a space-saving TO-92 or

SOT-223 package. It provides all of the functionality of

the industry standard TC1232 in a smaller, lower cost

configuration.

TC32M

DS21402C-page 1

Related parts for TC32M_06

TC32M_06 Summary of contents

Page 1

ECONOMONITOR™ – 3-Pin System Supervisor with Power Supply Monitor and Watchdog Features: • Incorporates the Functionality of the Industry Standard TC1232 (Processor Monitor, Watchdog and Manual Override Reset Controller) into a Small, Lower Cost Package • Guards Against Unstable Processor ...

Page 2

TC32M Functional Block Diagram TC32M V REF1 DV Watchdog Detector Timer V REF2 Delay Timer DS21402C-page 2 Typical Operating Circuit TC32M GND 5V R1, 10 kΩ Microcontroller R2, 10 kΩ PO.1 Reset Reset © 2006 Microchip ...

Page 3

ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Supply Voltage (V to GND) .............................+6.0V DD Input Voltage Any Pin..... (GND – 0.3V Operating Temperature Range TC32MC Package........................... 0°C to +70°C TC32ME Package ........................ -40°C to +85°C Storage Temperature Range ............. ...

Page 4

TC32M 2.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. Symbol (SOT-223, TO-92) 1 Ground. GND 2 V The +5V power supply input Reset/Strobe (Bidirectional). The ...

Page 5

DETAILED DESCRIPTION The TC32M provides three important functions to safeguard stable processor operation: precision pro- cessor monitor, Watchdog sanity timer and external override Reset control. 3.1 Processor Monitor The RS pin is immediately driven low any time V below ...

Page 6

TC32M 3.4 External Override Reset Control A built-in debounce circuit allows a push-button switch (PB) or other electronic signal to be wire-ORed to this pin as an external Reset override control. The external Reset is required active ...

Page 7

PACKAGING INFORMATION 4.1 Package Marking Information Package marking data not available at this time. 4.2 Taping Form Component Taping Orientation for 3-Pin SOT-223 Devices Device Marking Pin 1 Carrier Tape, Number of Components Per Reel and Reel Size Package ...

Page 8

TC32M 4.3 Package Dimensions 3-Pin SOT-223 .287 (7.30) .146 (3.70) .264 (6.70) .130 (3.30) Pin 1 .071 (1.80) Max. .004 (0.10) .001 (0.02) TO-92-3 .210 (5.33) .170 (4.32) .205 (5.21) .175 (4.45) .018 (0.46) .015 (0.38) DS21402C-page 8 .264 (6.70) ...

Page 9

PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART CODE TC32M Temperature: C: Commercial (0°C to +70°C) E: Extended (-40°C to +85°C) Package Type: ZB: 3-Pin ...

Page 10

Page 11

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

Page 12

W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Australia - Sydney 2355 West Chandler Blvd. Tel: 61-2-9868-6733 Chandler, AZ 85224-6199 Fax: 61-2-9868-6755 Tel: 480-792-7200 China - Beijing Fax: 480-792-7277 Tel: 86-10-8528-2100 Technical Support: Fax: 86-10-8528-2104 http://support.microchip.com China - Chengdu Web Address: Tel: ...

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