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M48T08-100MH1TR Datasheet(PDF) 1 Page - STMicroelectronics |
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M48T08-100MH1TR Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 27 page 1/27 December 2005 M48T08 M48T08Y, M48T18 5V, 64 Kbit (8 Kb x8) TIMEKEEPER® SRAM Rev 7.0 FEATURES SUMMARY ■ 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 VOLTAGES (VPFD = Power-fail Deselect Voltage): – M48T08: VCC = 4.75 to 5.5V 4.5V ≤ VPFD ≤ 4.75V – M48T18/T08Y: VCC = 4.5 to 5.5V 4.2V ≤ VPFD ≤ 4.5V ■ 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 8K x8 SRAMs ■ RoHS COMPLIANCE Lead-free components are compliant with the RoHS Directive. Figure 1. 28-pin PCDIP, CAPHAT™ Package Figure 2. 28-pin SOIC Package 28 1 PCDIP28 (PC) Battery/Crystal CAPHAT 28 1 SNAPHAT (SH) Battery/Crystal SOH28 (MH) |
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