ASM1233D datasheet(1/10 Pages) ONSEMI

Part #	ASM1233D

Description	Reset Active LOW Open-Drain Output

PDF	10 Pages

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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August, 2011 − Rev. 3

1

Publication Order Number:

ASM1233D/D

ASM1233D, ASM1233D-L,

ASM1233M

Low Power, 5 V/3.3 V,

mP Reset, Active LOW,

Open-Drain Output

Description

The ASM1233D−L/1233D/1233M are voltage supervisors with

low−power, 5/3.3 V

mP Reset, with an active LOW, open−drain output.

Maximum supply current over temperature is 15

mA for 3.3 V devices

and 20

mA for 5 V devices.

The ASM1233D−L/1233D/1233M generates an active LOW reset

signal whenever the monitored supply is out of tolerance. A precision

reference and comparator circuit monitors power supply (VCC) level.

The tolerances are 5%, 10% and 15%. When an out−of−tolerance

condition is detected, an internal power−fail signal is generated which

forces an active LOW reset signal. After VCC returns to an

in−tolerance condition, the reset signal remains active for 350 ms to

allow the power supply and system microprocessor to stabilize.

The ASM1233D−L/1233D/1233M is designed with an open drain

output stage and operates over the extended industrial temperature

range. These devices are available in compact SOT−223, SO−8 and

TO−92 packages.

Other low power products in this family include ASM1810/11/12/

15/16/17.

Features

• Low Supply Current

• 15 mA Maximum (≤ 3.6 V), 20 mA Maximum (5.5 V)

• Automatically Restarts a Microprocessor after Power Failure

• 350 ms Reset Delay after VCC Returns to an In−tolerance Condition

• Active LOW Power−up Reset, 5 kW Internal Pull−up

• Precision Temperature−compensated Voltage Reference and

Comparator

• Eliminates External Components

• Low−cost SOT−223/SO−8/TO−92 Packages

• Operating Temperature: −40°C to +85°C

Applications

• Set−top Boxes

• Cellular Phones

• PDAs

• Energy Management Systems

• Embedded Control Systems

• Printers

• Single Board Computers

http://onsemi.com

PIN CONFIGURATIONS

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

SOIC−8

8 LEAD

CASE 751BD

RESET

VCC

NC

GND

NC

1

SO−8

(Top View)

TO−92

ASM1233M

SOT−223

4 LEAD

CASE 318E

TO−92

3 LEAD

CASE 29−11

SOT−223

(Top View)

GND

RESET

VCC

GND

1

2

4

3

123

TO−92

ASM1233D−L

ASM1233D

(Top View)

2

3

4

8

7

6

5

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ASM1233D Datasheet(PDF) 1 Page - ON Semiconductor

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