MIC708T Micrel Semiconductor, MIC708T Datasheet

MIC708T

Manufacturer Part Number

MIC708T

Description

Manufacturer

Micrel Semiconductor

Datasheets

1.MIC708T.pdf (7 pages)

2.MIC706S.pdf (8 pages)

Specifications of MIC708T

Case

SOP8

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General Description

The MIC705, MIC706, MIC707, and MIC708 are inexpensive

mircoprocessor supervisory circuit that monitors power sup-

plies in microprocessor based systems. The circuit functions

include a watchdog timer, microprocessor reset, backup

battery switchover, power failure warning and a debounced

manual reset input.

The MIC705 and MIC706 offer a watchdog timer function

while the MIC707 and MIC708 have an active high reset

output in addition to the active low reset output.

Supply voltage monitor levels of 4.65V and 4.4V are available.

The MIC705 and MIC707 have a nominal reset threshold level

of 4.65V while the MIC706 and MIC708 have a 4.4V nominal

threshold level. When the supply voltage drops below the

respective reset threshold level, /RESET is asserted.

Typical Application

January 2006

MIC706P/R/S/T, MIC708R/S/T

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

(Unregulated)

DC Voltage

Manual

Reset

Ordering Information

Standard

MIC70_ _N

MIC70_ _M

PFI

MIC706

V CC

+3.0 or +3.3V (Regulated)

Part Number

RESET

Features

• 30µA Maximum Supply Current

• Debounced manual reset input is TTL/CMOS

• Reset Pulse Width, 200ms

• Watchdog timer, 1.6s (MIC706)

• Precision supply voltage monitor

• Early power fail warning or low battery detect

Applications

• Laptop computers

• Intelligent systems

• Critical microprocessor power monitoring

• Printers

• Computers

• Controllers

WDO

PFO

WDI

Compatible

MIC706P/R/S/T, MIC708R/S/T

Pb-Free

MIC70_ _NY

MIC70_ _MY

I/O Line

RESET

NMI

Interrupt

µP Supervisory Circuit

V CC

µP

Temperature Range

–40ºC to +85ºC

MIC706P/R/S/T, MIC708R/S/T

8-Pin SOIC

8-Pin PDIP

Package

Micrel, Inc.

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