M48T58-70PCI Timekeeper RAM Time Keeper BIOS

FEATURES
■ Integrated, ultra low power SRAM, real-time clock, power-fail control circuit and battery
■ BYTEWIDEâ„¢ 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 5.5 V;
4.5 V≤VPFD≤4.75 V
–M48T58Y: VCC= 4.5 to 5.5 V;
4.2 V≤VPFD≤4.5 V ■ Self-contained battery and crystal in the CAPHAT â„¢DIP package
■ Packaging includes a 28-lead SOIC and SNAPHAT Âtop (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 x 8 SRAM

Datasheet http://delta-electronic.com/shop/redirect.php?action=url&goto=drive.google.com%2Ffile%2Fd%2F0B7yo_qAb8XmwblZ0ak9ON2w2RzA%2Fedit%3Fusp%3Dsharing