M48Z12 ZEROPOWER SRAM

The M48Z02/12 ZEROPOWER®RAM is a 2 K x 8 non-volatile static RAM which is pin and function compatible with the DS1220.

A special 24-pin, 600 mil DIP CAPHAT™ package houses the M48Z02/12 silicon with a long-life lithium button cell to form a highly integrated battery-backed memory solution.

The M48Z02/12 button cell has sufficient capacity and storage life to maintain data functionality for an accumulated time period of at least 10 years in the absence of power over commercial operating temperature range.

The M48Z02/12 is a non-volatile pin and function equivalent to any JEDEC standard 2 K x 8 SRAM. It also easily fits into many ROM, EPROM, and EEPROM sockets, providing the non-volatility of PROMs without any requirement for special WRITE timing or limitations on the number of WRITEs that can be performed

技术特性
  • Integrated, ultra low power SRAM and power-fail control circuit
  • Unlimited WRITE cycles
  • READ cycle time equals WRITE cycle time
  • Automatic power-fail chip deselect and WRITE protection
  • WRITE protect voltages (VPFD= power-fail deselect voltage):
    • M48Z02: VCC= 4.75 to 5.5 V; 4.5 V ≤ VPFD≤ 4.75 V
    • M48Z12: VCC= 4.5 to 5.5 V; 4.2 V ≤ VPFD≤ 4.5 V
  • Self-contained battery in the CAPHAT™ DIP package
  • Pin and function compatible with JEDEC standard 2 K x 8 SRAMs
  • RoHS compliant
    • Lead-free second level interconnect
功能框图
M48Z12 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
M48Z12-70PC1 Active   1000 PDIP 24 .7 Tube   M48Z12-70PC1
M48Z12-150PC1 Active   1000 PDIP 24 .7 Tube   M48Z12-150PC1
DATASHEET
描述 版本 大小
M48Z12 : DS0497: 5 V, 16 Kbit (2 Kb x 8) ZEROPOWER® SRAM 9 339KB
APPLICATION NOTES
描述 版本 大小
AN1012 : Predicting the battery life and data retention period of NVRAMs and serial RTCs 4 440KB
AN1011 : Battery technology used in NVRAM and real-time clock (RTC) products from ST 4 249KB
AN1009 : 'Negative undershoot' NVRAM data corruption 1 34KB