M48T251YPM datasheet(1/24 Pages) STMICROELECTRONICS

Nome de Peças	M48T251YPM

Descrição Electrónicos	5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM

PDF	24 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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February 2005

M48T251Y

M48T251V

5.0 or 3.3V, 4096K TIMEKEEPER® SRAM with PHANTOM

FEATURES SUMMARY

■

5.0V OR 3.3V OPERATING VOLTAGE

■

REAL TIME CLOCK KEEPS TRACK OF

TENTHS/HUNDREDTHS OF SECONDS,

SECONDS, MINUTES, HOURS, DAYS,

DATE OF THE MONTH, MONTHS, AND

YEARS

■

AUTOMATIC LEAP YEAR CORRECTION

VALID UP TO THE YEAR 2100

■

AUTOMATIC SWITCH-OVER AND

DESELECT CIRCUITRY

■

CHOICE OF POWER-FAIL DESELECT

VOLTAGES:

(VPFD = Power-fail Deselect Voltage):

–

M48T251Y: 4.25V

≤ V

PFD

≤ 4.50V

–

M48T251V: 2.80V

≤ V

PFD

≤ 2.97V

■

FULL 10% VCC OPERATING RANGE

■

OVER 10 YEARS’ DATA RETENTION IN

THE ABSENCE OF POWER

■

WATCH FUNCTION IS TRANSPARENT TO

RAM OPERATION

■

512K x 8 NV SRAM DIRECTLY REPLACES

VOLATILE STATIC RAM OR EEPROM

Figure 1. 32-pin, DIP Package

32

1

PMDIP32 (PM)

Nº de peça semelhante - M48T251YPM

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
STMicroelectronics	M48T254V	359Kb / 24P	CLOCK FUNCTION IS TRANSPARENT TO RAM OPERATION. May-2003

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Descrição semelhante - M48T251YPM

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
STMicroelectronics	M48T248Y	306Kb / 24P	5.0 or 3.3V, 1024K TIMEKEEPER SRAM with PHANTOM Rev. 2.0
Dallas Semiconductor	DS1250W	217Kb / 11P	3.3V 4096k Nonvolatile SRAM
	DS1350W	107Kb / 11P	3.3V 4096K Nonvolatile SRAM with Battery Monitor
	DS1251	291Kb / 22P	4096k NV SRAM with Phantom Clock
Hanbit Electronics Co.,...	HMNR88D	258Kb / 13P	5.0 or 3.3V, 64K bit (8 Kbit x 8) TIMEKEEPER NVSRAM
Dallas Semiconductor	DS1251Y	93Kb / 12P	4096K NV SRAM with Phantom Clock
STMicroelectronics	M48T129Y	481Kb / 30P	5.0 or 3.3V, 1 Mbit (128 Kbit x 8) TIMEKEEPER SRAM Feb-2005
Maxim Integrated Produc...	DS1251	639Kb / 20P	4096K NV SRAM with Phantom Clock Rev 11/11
	DS1350W	217Kb / 10P	3.3V 4096k Nonvolatile SRAM with Battery Monitor 19-5586; Rev 10/10
	DS1250W	226Kb / 9P	3.3V 4096k Nonvolatile SRAM 19-5648; Rev 12/10

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