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HM628128ALT7

Specifications

SKU: 1714238

BUY HM628128ALT7 https://www.utsource.net/itm/p/1714238.html
x8 SRAM
Parameter Description Value
Device Type 128K x 8-bit CMOS SRAM -
Package 28-Pin SOP (Small Outline Package) -
Operating Voltage Supply Voltage Range 4.5V to 5.5V
Standby Current Current Consumption in Standby Mode 10 μA (Typical)
Active Current Current Consumption in Active Mode 10 mA (Typical)
Access Time Time Required for Data Access 70 ns (Maximum)
Data Retention Time Data is Retained in Standby Mode 20 years
Temperature Range Operating Temperature Range -40°C to +85°C
Write Cycle Time Minimum Time Between Write Cycles 150 ns
Output Drive Capability Maximum Output Drive Current per Pin ±10 mA
Storage Temperature Temperature Range for Storage -65°C to +150°C
Endurance Number of Read/Write Cycles Unlimited

Instructions

  1. Power Supply:

    • Ensure the supply voltage is within the range of 4.5V to 5.5V.
    • Connect Vcc to the positive power supply and GND to the ground.
  2. Signal Connections:

    • Connect the address lines (A0-A16) to the appropriate address bus.
    • Connect the data lines (D0-D7) to the data bus.
    • Connect the chip select (CS), output enable (OE), and write enable (WE) signals to the control bus.
  3. Operation Modes:

    • Read Operation: Set CS and OE low, WE high. The data at the addressed location will be available on the data lines.
    • Write Operation: Set CS and WE low, OE high. The data on the data lines will be written to the addressed location.
    • Standby Mode: Set CS high to place the device in standby mode, reducing power consumption.
  4. Timing Considerations:

    • Ensure that the access time (70 ns maximum) is respected to avoid data corruption.
    • Maintain a minimum write cycle time of 150 ns between successive write operations.
  5. Handling and Storage:

    • Store the device in a dry, temperature-controlled environment.
    • Handle with care to avoid static discharge, which can damage the device.
  6. Endurance and Data Retention:

    • The device has unlimited read/write cycles and can retain data for up to 20 years in standby mode.
(For reference only)

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