M48T58Y-70PC1F datasheet(1/31 Pages) STMICROELECTRONICS

Part #	M48T58Y-70PC1F

Description	5.0V, 64 Kbit (8 Kb x 8) TIMEKEEPER SRAM

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 31 page

August 2007

Rev 5

1/31

1

M48T58

M48T58Y

5.0V, 64 Kbit (8 Kb x 8) TIMEKEEPER® SRAM

Features

■ Integrated, ultra low power SRAM, real time

clock, power-fail control circuit and battery

■ BYTEWIDE™ RAM-like clock access

■ BCD coded year, month, day, date, hours,

minutes, and seconds

■ Frequency test output for real time clock

■ Automatic power-fail chip deselect and write

protection

■ Write protect voltages

(VPFD = power-fail deselect voltage):

–M48T58: VCC = 4.75 to 5.5V

4.5V

≤ VPFD ≤ 4.75V

–M48T58Y: VCC = 4.5 to 5.5V

4.2V

≤ VPFD ≤ 4.5V

■ Self-contained battery and crystal in the

CAPHAT™ dip package

■ Packaging includes a 28-lead SOIC and

SNAPHAT® top (to be ordered separately)

■ SOIC package provides direct connection for a

snaphat housing containing the battery and

crystal

■ Pin and function compatible with JEDEC

standard 8 Kb x8 SRAMs

■ RoHS compliant

– Lead-free second level interconnect

28

1

PCDIP28 (PC)

Battery/Crystal

CAPHAT

28

1

SNAPHAT (SH)

Battery/Crystal

SOH28 (MH)

www.st.com

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M48T58Y-70PC1F Datasheet(PDF) 1 Page - STMicroelectronics

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