SE811 Datasheet, PDF(4/8 Page) Seaward Electronics Inc. – 4-Pin Microprocessor Reset Monitor

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SE811 Datasheet, PDF (4/8 Pages) Seaward Electronics Inc. – 4-Pin Microprocessor Reset Monitor

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4-Pin Microprocessor Reset Monitor

(Preliminary)

SE811

PIN DESCRIPTION:

Pin No. Symbol

GND

RESET

Vcc

Description

Ground

RESET output remains low while Vcc is below the reset voltage

threshold and for 150mSec(typ) after Vcc rises above reset threshold

Manual Reset Input. A logic low on MR asserts. Reset remains asserted

as long as MR is low and for 150ms after MR returns high. It can be

driven from a TTL or CMOS-logic line, Or shorted to ground with a

switch. Leave Open if unused.

Supply Voltage (typ.)

Note 1: Exceeding the absolute maximum rating may damage the device.

Note 2: The device is not guaranteed to function outside its operating rating.

Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) =

(TJ(MAX) â TA)/ÎJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature,

and the regulator will go into thermal shutdown. See âThermal Considerationâ section for details

Note 4: RESET threshold temperature coefficient is the worst case voltage change divided by the total temperature

range.

Revision 5/15/2009

Preliminary and all contents are subject to change without prior notice.

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