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CY7C1049D: 4-Mbit (512 K × 8) Static RAM | Cypress Semiconductor

CY7C1049D: 4-Mbit (512 K × 8) Static RAM

Last Updated: 
Aug 26, 2015

4-Mbit (512K x 8) Static RAM


  • Pin- and function-compatible with CY7C1049B
  • High speed
    • tAA = 10 ns
  • Low active power
    • ICC = 90 mA @ 10 ns
  • Low CMOS Standby power
    • ISB2 = 10 mA
  • 2.0V Data Retention
  • Automatic power-down when deselected
  • TTL-compatible inputs and outputs
  • Easy memory expansion with CE and OE features
  • Available in Pb-free 36-Lead (400-Mil) Molded SOJ package

Functional Description

The CY7C1049D is a high-performance CMOS static RAM organized as 512K words by 8 bits. Easy memory expansion is provided by an active LOW Chip Enable (CE), an active LOW Output Enable (OE), and tri-state drivers. Writing to the device is  accomplished by taking Chip Enable (CE) and Write Enable (WE) inputs LOW. Data on the eight I/O pins (I/O0 through I/O7) is then written into the location specified on the address pins (A0 through A18).