M48T08Y-10MH1E;M48T08Y-10MH1F;M48T18-150PC1;M48T08-150PC1;M48T18-100PC1;中文规格书,Datasheet资料.pdf

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 28 25 °C 1 ■ Automatic power-fail chip deselect and WRITE protection PCDIP28 ■ WRITE protect battery/crystal VPFD = power-fail deselect voltage): CAPHAT™ – 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 SNAPHAT® accuracy applications battery/crystal ■ 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 28