M48T86PC datasheet(1/23 Pages) STMICROELECTRONICS

部件名	M48T86PC

功能描述	5V PC REAL TIME CLOCK

PDF	23 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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May 2000

M48T86

5V PC REAL TIME CLOCK

s

DROP-IN REPLACEMENT for PC

COMPUTER CLOCK/CALENDAR

s

COUNTS SECONDS, MINUTES, HOURS,

DAYS, DAY of the WEEK, DATE, MONTH and

YEAR with LEAP YEAR COMPENSATION

s

INTERFACED WITH SOFTWARE AS 128

RAM LOCATIONS:

– 14 Bytes of Clock and Control Registers

– 114 Bytes of General Purpose RAM

s

SELECTABLE BUS TIMING (Intel/Motorola)

s

THREE INTERRUPTS are SEPARATELY

SOFTWARE-MASKABLE and TESTABLE

– Time-of-Day Alarm (Once/Second to

Once/Day)

– Periodic Rates from 122µs to 500ms

– End-of-Clock Update Cycle

s

PROGRAMMABLE SQUARE WAVE OUTPUT

s

SELF-CONTAINED BATTERY and CRYSTAL

in the CAPHAT DIP PACKAGE

s

PACKAGING INCLUDES a 28-LEAD SOIC

and SNAPHAT® TOP

(to be Ordered Separately)

s

SOIC PACKAGE PROVIDES DIRECT

CONNECTION for a SNAPHAT TOP

CONTAINS the BATTERY and CRYSTAL

s

PIN and FUNCTION COMPATIBLE with

bq3285/7A and DS128887

Figure 1. Logic Diagram

AI01640

E

VCC

M48T86

RCL

RST

VSS

8

AD0-AD7

MOT

R/W

DS

AS

IRQ

SQW

28

1

24

1

SOH28 (MH)

SNAPHAT (SH)

Battery/Crystal

PCDIP24 (PC)

Battery/Crystal

CAPHAT

类似零件编号 - M48T86PC

制造商	部件名	数据表	功能描述
STMicroelectronics	M48T86PC1	317Kb / 36P	5.0 V PC real-time clock 20-Feb-2007
STMicroelectronics	M48T86PC1E	317Kb / 36P	5.0 V PC real-time clock 20-Feb-2007
ARTSCHIP ELECTRONICS CO...	M48T86PC1E	9Mb / 29P	5.0V PC Real-Time Clock
STMicroelectronics	M48T86PC1F	317Kb / 36P	5.0 V PC real-time clock 20-Feb-2007
ARTSCHIP ELECTRONICS CO...	M48T86PC1F	9Mb / 29P	5.0V PC Real-Time Clock

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类似说明 - M48T86PC

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STMicroelectronics	M48T86	317Kb / 36P	5.0 V PC real-time clock 20-Feb-2007
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ARTSCHIP ELECTRONICS CO...	M48T86	9Mb / 29P	5.0V PC Real-Time Clock