M48T128Y 5.0或3.3V,1兆位(128 kB× 8)计时器?SRAM

The M48T128Y/V TIMEKEEPER? RAM is a 128Kb x 8 non-volatile static RAM and real time clock. The special DIP package provides a fully integrated battery back-up memory and real time clock solution. The M48T128Y/V directly replaces industry standard 128Kb x 8 SRAM.

It also provides the non-volatility of Flash without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed. The 32-pin, 600mil DIP Hybrid houses a controller chip, SRAM, quartz crystal, and a long life lithium button cell in a single package.

M48T128Y 产品特性:

• INTEGRATED, ULTRA LOW POWER SRAM, REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT, BATTERY, AND CRYSTAL
• BCD CODED YEAR, MONTH, DAY, DATE, HOURS, MINUTES, AND SECONDS
• AUTOMATIC POWER-FAIL CHIP DESELECT AND WRITE PROTECTION
• WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage):
  – M48T128Y: VCC = 4.5 to 5.5V 4.1V ≤ VPFD ≤ 4.5V
  – M48T128V*: VCC = 3.0 to 3.6V 2.7V ≤ VPFD ≤ 3.0V
• CONVENTIONAL SRAM OPERATION; UNLIMITED WRITE CYCLES
• SOFTWARE CONTROLLED CLOCK CALIBRATION FOR HIGH ACCURACY APPLICATIONS
• 10 YEARS OF DATA RETENTION AND CLOCK OPERATION IN THE ABSENCE OF POWER
• SELF-CONTAINED BATTERY AND CRYSTAL IN THE DIP PACKAGE
• PIN AND FUNCTION COMPATIBLE WITH JEDEC STANDARD 128K x 8 SRAMs

M48T128Y 技术支持与电子电路设计开发资源下载

1. M48T128Y 数据手册DataSheet下载.PDF
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