MM58274C datasheet(1/16 Pages) NSC

номер детали	MM58274C

подробное описание детали	Microprocessor Compatible Real Time Clock

PDF	16 Pages

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производитель	NSC [National Semiconductor (TI)]

домашняя страница	http://www.national.com

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TLF11219

April 1991

MM58274C

Microprocessor Compatible Real Time Clock

General Description

The MM58274C is fabricated using low threshold metal gate

CMOS technology and is designed to operate in bus orient-

ed microprocessor systems where a real time clock and cal-

endar function are required The on-chip 32768 kHz crystal

controlled oscillator will maintain timekeeping down to 22V

to allow low power standby battery operation This device is

pin compatible with the MM58174A but continues timekeep-

ing up to tens of years The MM58274C is a direct replace-

ment for the MM58274 offering improved Bus access cycle

times

Applications

Y

Point of sale terminals

Y

Teller terminals

Y

Word processors

Y

Data logging

Y

Industrial process control

Features

Y

Same

pin-out

as

MM58174A

MM58274B

and

MM58274

Y

Timekeeping from tenths of seconds to tens of years in

independently accessible registers

Y

Leap year register

Y

Hours counter programmable for 12 or 24-hour

operation

Y

Buffered crystal frequency output in test mode for easy

oscillator setting

Y

Data-changed flag allows simple testing for time

rollover

Y

Independent interrupting time with open drain output

Y

Fully TTL compatible

Y

Low power standby operation (10 mA at 22V)

Y

Low cost 16-pin DIP and 20-pin PCC

Block Diagram

TLF11219 – 1

FIGURE 1

TRI-STATE

is a registered trademark of National Semiconductor Corp

MicrobusTM is a trademark of National Semiconductor Corp

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A

Аналогичный номер детали - MM58274C

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	MM58274C-12	904Kb / 13P	MICROPROCESSOR COMPATIBLE REAL TIME CLOCK
	MM58274CJ-12	904Kb / 13P	MICROPROCESSOR COMPATIBLE REAL TIME CLOCK
	MM58274CN-12	904Kb / 13P	MICROPROCESSOR COMPATIBLE REAL TIME CLOCK
Aries Electronics, Inc.	MM58274CV	730Kb / 1P	A cost-effective means of upgrading to a PLCC package type Clock Chip without changing your PCB layout
National Semiconductor ...	MM58274CV-12	904Kb / 13P	MICROPROCESSOR COMPATIBLE REAL TIME CLOCK

More results

Аналогичное описание - MM58274C

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	MM58167B	173Kb / 10P	Microprocessor Real Time Clock
National Semiconductor ...	MM58174A	130Kb / 8P	Microprocessor-Compatible Real-Time Clock
OKI electronic componet...	MSM5832	544Kb / 6P	MICROPROCESSOR REAL-TIME CLOCK/CALENDAR
Intersil Corporation	ICM7170	77Kb / 13P	Microprocessor-Compatible, Real-Time Clock August 1997
Epson ToYoCom	RTC8583	56Kb / 2P	I2C-BUS COMPATIBLE REAL TIME CLOCK MODULE
National Semiconductor ...	NS32FX211	171Kb / 12P	Microprocessor Compatible Real Time C
National Semiconductor ...	MM58274C-12	904Kb / 13P	MICROPROCESSOR COMPATIBLE REAL TIME CLOCK
Maxim Integrated Produc...	DS1347_1202	227Kb / 17P	Low-Current, SPI-Compatible Real-Time Clock Rev 2; 2/12
Rochester Electronics	ICM7170	688Kb / 14P	Microprocessor-Compatible, Real-Time Clock 8-Bit, uP Bus Compatible
Renesas Technology Corp	ICM7170	736Kb / 14P	Microprocessor-Compatible, Real-Time Clock Nov 2003

More results

MM58274C датащи(PDF) 1 Page - National Semiconductor (TI)

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Аналогичный номер детали - MM58274C

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