M48T512Y 采用5.0/3.3V,4Mbit(512Kbit × 8)计时器?SRAM

The M48T512Y/V TIMEKEEPER? RAM is a 512 Kb x 8 non-volatile static RAM and realtime clock organized as 524,288 words by 8 bits. The special DIP package provides a fully integrated battery backup memory and real-time clock solution.

The M48T512Y/V directly replaces industry standard 512 Kb x 8 SRAMs. 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.

M48T512Y 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)
  – M48T512Y: VCC = 4.5 to 5.5 V 4.2 V ≤ VPFD ≤ 4.5 V
  – M48T512V: VCC = 3.0 to 3.6 V 2.7 V ≤ VPFD ≤ 3.0 V
• 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
• Pin and function compatible with industry standard 512 K x 8 SRAMS
• Self-contained battery and crystal in DIP package

M48T512Y 技术支持与电子电路设计开发资源下载

1. M48T512Y 数据手册DataSheet下载.PDF
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