© Semiconductor Components Industries, LLC, 2011

August, 2011 − Rev. 3

1

Publication Order Number:

ASM705/D

ASM705, ASM706, ASM707,

ASM708, ASM813L

Low Power mP Supervisor

Circuits

Description

The ASM705 / 706 / 707 / 708 and ASM813L are cost effective

CMOS supervisor circuits that monitor power−supply and battery

voltage level, and

mP/mC operation.

The family offers several functional options. Each device generates

a reset signal during power−up, power−down and during brownout

conditions. A reset is generated when the supply drops below 4.65 V

(ASM705/707/813L) or 4.40 V (ASM706/708). For 3 V power supply

applications, refer to the ASM705P/R/S/T data sheet. In addition, the

ASM705/706/813L feature a 1.6 second watchdog timer. The

ASM707/708 have both active−HIGH and active−LOW reset outputs

but no watchdog function. The ASM813L has the same pin−out and

functions as the ASM705 but has an active−HIGH reset output. A

versatile power−fail circuit has a 1.25 V threshold, useful in low

battery detection and for monitoring non−5 V supplies. All devices

have a manual reset (MR) input. The watchdog timer output will

trigger a reset if connected to MR.

All devices are available in 8−pin DIP, SO and MicroSO packages.

Features

4.65 V Threshold (ASM705/707/813L)

4.40 V Threshold (ASM706/708)

1.25 V Threshold

Battery Monitor / Auxiliary Supply Monitor

Applications

http://onsemi.com

PIN CONFIGURATIONS

See detailed ordering and shipping information in the package

dimensions section on page 11 of this data sheet.

ORDERING INFORMATION

PDIP−8

P SUFFIX

CASE 646AA

SOIC−8

S SUFFIX

CASE 751BD

MR

GND

PFI

RESET

RESET

NC

PFO

ASM707

ASM708

1

MR

GND

PFI

WDO

RESET (RESET)

WDI

PFO

ASM705

ASM706

(ASM813L)

1

DIP/SO

(Top Views)

MICRO−8

U SUFFIX

CASE 846AA

MicroSO

(Top Views)

RESET

RESET

MR

NC

PFI

GND

1

PFO

RESET (RESET)

WDO

MR

WDI

PFI

GND

1

PFO

ASM707

ASM708

ASM705

ASM706

(ASM813L)