M41T256YMT7F datasheet(1/27 Pages) STMICROELECTRONICS

部件名	M41T256YMT7F

功能描述	256 Kbit 32K x8 SERIAL RTC

PDF	27 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 27 page

1/27

June 2004

M41T256Y

256 Kbit (32K x8) Serial RTC

FEATURES SUMMARY

■

5V OPERATING VOLTAGE

■

SERIAL INTERFACE SUPPORTS

EXTENDED I2C BUS ADDRESSING

(400kHz)

■

AUTOMATIC SWITCH-OVER AND

DESELECT CIRCUITRY

■

POWER-FAIL DESELECT VOLTAGES:

–

M41T256Y: VCC = 4.5 to 5.5V;

VPFD = 4.2 < VPFD < 4.5V

■

COUNTERS FOR TENTHS/HUNDREDTHS

OF SECONDS, SECONDS, MINUTES,

HOURS, DAY, DATE, MONTH, and YEAR

■

PROGRAMMABLE SOFTWARE CLOCK

CALIBRATION

■

32,752 BYTES OF GENERAL PURPOSE

RAM

■

MICROPROCESSOR POWER-ON RESET

■

HOLDS MICROPROCESSOR IN RESET

UNTIL SUPPLY VOLTAGE REACHES

STABLE OPERATING LEVEL

■

AUTOMATIC ADDRESS-INCREMENTING

■

TAMPER INDICATION CIRCUIT WITH TIME-

STAMP

■

SLEEP MODE FUNCTION

■

PACKAGING INCLUDES A 44-LEAD SOIC

AND SNAPHAT® TOP (to be ordered

separately)

■

SOIC PACKAGE PROVIDES DIRECT

CONNECTION FOR A SNAPHAT® TOP

WHICH CONTAINS THE BATTERY AND

CRYSTAL

Figure 1. 44-pin, Hatless SOIC Package

Figure 2. 44-pin SOIC Package

44

1

SO44 (MT)

44

1

SOH44 (MH)

SNAPHAT (SH)

Crystal/Battery

类似零件编号 - M41T256YMT7F

制造商	部件名	数据表	功能描述
STMicroelectronics	M41T256YMT7F	275Kb / 30P	256Kbit (32K x 8) serial RTC 09-Nov-2007

More results

类似说明 - M41T256YMT7F

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