Datasheet > FM809LE

FM809LE

更新时间： 2024-09-27 23:52:23

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描述
Voltage Detector

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数据手册

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FM809LE 数据手册

August 2000

FM809

Precision Reset Generator Circuit

General Description

Features

The FM809 features comprehensive reset generation for

microcontroller/microprocessorbasedsystems. IfthesystemV_CC

voltage level is determined to be in an out-of-tolerance state, the

device automatically generates a low-going reset signal. The

reset signal is held in the active state (low) for a specified duration

(minimum 140 ms) after the V_CCreturns to an in-tolerance state.

I Automatic reset generation on power-up

I Minimum 140 ms reset pulse — compatible with other similar

809 class devices

I Other reset pulse choices available: 32 - 256 ms

I Choice of commercial and extended temperature ranges

I Choice of Reset Thresholds: 4.63V, 4.38V, 4.00V, 3.08V,

2.93V, 2.63V

The FM809 is fabricated using CMOS technology. The FM809 is

available in the SOT-23 package.

I Package available: SOT-23

Block Diagram

V_CC

Reset_out

(active low)

V_CCTolerance Detect

& Reset Monitor

Output

Stage

Temp. Compensated

Reference

Connection Diagram

1 = GND

2 = RESET'

3 = V_CC

FM809

FM809 Rev. A.1

www.fairchildsemi.com

12 3 4 5

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