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M48T58Y_11 Datasheet, PDF (1/33 Pages) STMicroelectronics – 5.0 V, 64 Kbit (8 Kb x 8) TIMEKEEPER® SRAM | |||
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M48T58
M48T58Y
5.0 V, 64 Kbit (8 Kb x 8) TIMEKEEPER® SRAM
Features
â Integrated, ultra low power SRAM, real-time
clock, power-fail control circuit and battery
â BYTEWIDE⢠RAM-like clock access
â BCD coded year, month, day, date, hours,
minutes, and seconds
â Frequency test output for real-time clock
â Automatic power-fail chip deselect and WRITE
protection
â WRITE protect voltages
(VPFD = power-fail deselect voltage):
â M48T58: VCC = 4.75 to 5.5 V;
4.5 V ⤠VPFD ⤠4.75 V
â M48T58Y: VCC = 4.5 to 5.5 V;
4.2 V ⤠VPFD ⤠4.5 V
â Self-contained battery and crystal in the
CAPHAT⢠DIP package
â Packaging includes a 28-lead SOIC and
SNAPHAT® top (to be ordered separately)
â SOIC package provides direct connection for a
snaphat housing containing the battery and
crystal
â Pin and function compatible with JEDEC
standard 8 Kb x 8 SRAMs
â RoHS compliant
â Lead-free second level interconnect
28
1
PCDIP28
Battery/crystal
CAPHATâ¢
SNAPHAT®
Battery/crystal
28
1
SOH28
June 2011
Doc ID 2412 Rev 8
1/33
www.st.com
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