ILC812_U

更新时间： 2024-11-13 22:51:35

品牌	Logo	应用领域
IMPALA		微处理器复位电路
页数	文件大小	规格书
5页	81K
描述
MICROPROCESSOR RESET CIRCUITS

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数据手册

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ILC812_U 数据手册

Impala Linear Corporation

Preliminary

ILC811/812

Microprocessor Reset Circuits

General Description

Features

The ILC811/ILC812 is a low cost microprocessor superviso-

ry circuit that asserts a reset if the power supply drops below

a designated threshold or the manual reset pin is forced low.

Several different reset thresholds are available to accom-

modate systems operating at 3V, 3.3V or 5V.

! Precision Voltage Monitor for 3V, 3.3V or 5V Power Supplies

! 6mA Supply Current

! 140ms Minimum Reset Pulse Width

! RESET Remains Valid with V_CCas Low as 1.4V

! Active Low Manual Reset Input

The ILC811 has an active low RESET output, while the

ILC812 offers an active high RESET output. The reset output

is guaranteed to remain asserted for a minimum of 140ms

after V_CChas risen above the designated reset threshold.

! No External Components

! 4-Pin SOT-143 Package

The ILC811/ILC812 is available in a 4-pin SOT-143

Applications

! Critical Microprocessor Power Monitoring

! Portable Equipment

! Intelligent Instruments

! Computers & Printers

! Controllers

Typical Circuit

VCC

ILC811

ILC812

µP

RESET

INPUT

RESET

(RESET)

Ordering Information

Part

ILC811_U

ILC812_U

Package

4-Lead SOT-143

Temp. Range

-40°C to +85°C

( ) = ILC812

Place the device suffix of desired reset threshold voltage from the

table [below] in the blank to complete the part number.

Pin Package Configuration

Top View

Reset Threshold Voltage (V)

Device Suffix

4.63

4.38

4.00

3.08

2.93

2.63

GND

V^CC

ILC811

RESET

GND

V^CC

ILC812

RESET

Impala Linear Corporation

ILC811/812 1.3

www.impalalinear.com

(408) 574-3939

Sept 1999

12 3 4 5

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