TIMEKEEPER® NV-SRAM + RTC, 64 Kb (8 K x 8), 5 V, DIL-28

M48T08 , M48T08Y , M48T18
5 V, 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
- Typical clock accuracy of ±1 minute a month, at 25 °C
- Automatic power-fail chip deselect and WRITE protection
- WRITE protect VPFD = power-fail deselect voltage):
- M48T08: VCC = 4.75 to 5.5 V; 4.5 V = VPFD = 4.75 V
- M48T18/T08Y: VCC = 4.5 to 5.5 V; 4.2 V = VPFD = 4.5 V
- Software controlled clock calibration for high accuracy applications
- 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 top which contains the battery and crystal
- Pin and function compatible with DS1643 and JEDEC standard 8 K x 8 SRAMs
- RoHS compliant - Lead-free second level interconnect