TC1232CPA Microchip Technology Inc., TC1232CPA Datasheet

TC1232CPA

Manufacturer Part Number

TC1232CPA

Description

MICROPROCESSOR MONITOR

Manufacturer

Microchip Technology Inc.

Type

Voltage Monitorr

Datasheet

1.TC1232CPA.pdf (7 pages)

Specifications of TC1232CPA

Current, Output

-12 mA (High), +10 mA (Low)

Current, Supply

50 μA

Package Type

PDIP

Temperature, Operating, Range

0 to +70 °C

Time, Fall

10 μs

Time, Rise

0 μs

Voltage, Input

5.3 V (High), +0.8 V (Low)

Voltage, Output, High

2.4 V

Voltage, Output, Low

0.4 V

Voltage, Supply

5 V

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC1232CPA

Manufacturer:

Microchi

Quantity:

1 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

TC1232CPA

Manufacturer:

MIC

Quantity:

20 000

Current page: 1 of 7
Download datasheet (284Kb)

Features

• Precision Voltage Monitor

• Reset Pulse Width – 250 msec minimum

• No External Components

• Adjustable Watchdog Timer

• Operating Voltage 4.0V to 5.5V

• Debounced Manual Reset Input for External

Block Diagram

Package Types

Device Features

PB RST

TC1232

Device

- Adjustable +4.5V or +4.75V

- 150 msec, 600 msec or 1.2 sec

Override

TOL

PB RST

GND

TOL

(5% or 10%)

Debounce

Watchdog

Timebase

Open-drain

Tolerance

Select

Type

8-Pin PDIP

REF

–

TC1232

Watchdog

RST pin

–

Timer

Resistor

External

Pull-up

Generator

Reset

Microprocessor Monitor

RST

Active

Level

Low

PB RST

GND

Push-pull

TOL

Type

RST pin

RST

Preliminary

8-Pin SOIC

TC1232

Active

Level

High

General Description

The TC1232 is a fully-integrated processor supervisor

that provides three important functions to safeguard

processor sanity: precision power on/off reset control,

watchdog timer and external reset override.

On power-up, the TC1232 holds the processor in the

reset state for a minimum of 250 msec after V

within tolerance to ensure a stable system start-up.

Microprocessor sanity is monitored by the onboard

watchdog circuit. The microprocessor must provide a

periodic low-going signal on the ST input. Should the

processor fail to supply this signal within the selected

time-out period (150 msec, 600 msec or 1200 msec),

an out-of-control processor is indicated and the

TC1232 issues a processor reset as a result.

The outputs of the TC1232 are immediately driven

active when the PB input is brought low by an external

push button switch or other electronic signal. When

connected to a push button switch, the TC1232

provides contact debounce.

The TC1232 is packaged in a space-saving 8-Pin PDIP

or SOIC package, a 16-Pin SOIC (wide) package and

requires no external components.

Trip Points

or 4.5V

(Max)

4.75V

RST

PB RST

Active Time

GND

Minimum

TOL

Reset

(ms)

250

TC1232

16-Pin SOIC (Wide)

TC1232

Timeouts (ms)

150, 600 or

WDI Input

Typical

1200

DS21370C-page 1

VCC

RST

Input

Yes

Related parts for TC1232CPA

TC1232CPA Summary of contents

Page 1

... Type Resistor Level TC1232 Open-drain External © 2005 Microchip Technology Inc. General Description The TC1232 is a fully-integrated processor supervisor that provides three important functions to safeguard processor sanity: precision power on/off reset control, watchdog timer and external reset override. On power-up, the TC1232 holds the processor in the reset state for a minimum of 250 msec after V within tolerance to ensure a stable system start-up ...

Page 2

... OL — 50 200 µA CC 4.50 4.62 4.74 V 4.25 4.37 4. +25°C. (Note 4) A — — — — OUT with an internal impedance of typically Preliminary = +4.0V to 5.5V. Conditions Note 2. 0.4V OL Note 2 TOL = GND (Note 3) TOL = V (Note 3) CC © 2005 Microchip Technology Inc. ...

Page 3

... CC V Rise Time CC V Trip Point Detected t CC RPD to RST High and RST Low V Trip Point Detected t CC RPU to RST High and RST Open Note 1: Ensured by design µs. R © 2005 Microchip Technology Inc RPD RST RST MIN MAX CC Min Typ Max ...

Page 4

... ST 62.5 150 250 ms TD 250 600 1000 ms 500 1200 2000 ms Preliminary (min)) “H” (min (max (max)) TD “L” t (min (min (max (max +4.0V to 5.5V. Conditions Note 1 TD Pin = 0V TD Pin = Open TD Pin = V CC © 2005 Microchip Technology Inc. ...

Page 5

... Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-001 Drawing No. C04-018 © 2005 Microchip Technology Inc ...

Page 6

... Preliminary A2 MILLIMETERS MIN NOM MAX 8 1.27 1.35 1.55 1.75 1.32 1.42 1.55 0.10 0.18 0.25 5.79 6.02 6.20 3.71 3.91 3.99 4.80 4.90 5.00 0.25 0.38 0.51 0.48 0.62 0. 0.20 0.23 0.25 0.33 0.42 0. © 2005 Microchip Technology Inc. ...

Page 7

... OE713 = Plastic SOIC (300 mil Body), 16-lead Tape and Reel © 2005 Microchip Technology Inc. Examples: a) TC1232COA: b) TC1232COA713: 0°C to +70°C, 8L-SOIC, c) TC1232COE: d) TC1232COE713: 0°C to +70°C, 16L-SOIC e) TC1232CPA: f) TC1232EOA: g) TC1232EOA713: -40°C to +85°C, h) TC1232EOE: i) TC1232EOE713: -40°C to +85°C, j) TC1232EPA: Preliminary TC1232 . 0° ...

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