M48T02_10 Datasheet, PDF (1/25 Pages) STMicroelectronics – 5.0 V, 16 Kbit (2 Kb x 8) TIMEKEEPER® SRAM

M48T02
M48T12
5.0 V, 16 Kbit (2 Kb x 8) TIMEKEEPER^® SRAM
Features
■ Integrated, ultra low power SRAM, real-time
clock, and power-fail control circuit
■ BYTEWIDE^™ RAM-like clock access
■ BCD coded year, month, day, date, hours,
minutes, and seconds
■ Typical clock accuracy of ±1 minute a month,
at 25 °C
■ Software controlled clock calibration for high
accuracy applications
■ Automatic power-fail chip deselect and WRITE
protection
■ WRITE protect voltages
(V_PFD = Power-fail deselect voltage):
– M48T02: V_CC = 4.75 to 5.5 V
4.5 V ≤ V_PFD ≤ 4.75 V
– M48T12: V_CC = 4.5 to 5.5 V
4.2 V ≤ V_PFD ≤ 4.5 V
■ Self-contained battery and crystal in the
CAPHAT^™ DIP package
■ Pin and function compatible with JEDEC
standard 2 K x 8 SRAMs
■ RoHS compliant
– Lead-free second level interconnect
24
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PCDIP24 (PC)
battery/crystal
CAPHAT™
August 2010
Doc ID 2410 Rev 8
1/25
www.st.com
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