CY7C056V-20BAI Datasheet PDF - Cypress Semiconductor

Functional Description
The CY7C056V and CY7C057V are low-power CMOS 16K and 32K x 36 dual-port static RAMs. Various arbitration schemes are included on the devices to handle situations when multiple processors access the same piece of data.

FEATUREs
• True dual-ported memory cells which allow simultaneous access of the same memory location
• 16K x 36 organization (CY7C056V)
• 32K x 36 organization (CY7C057V)
• 0.25-micron CMOS for optimum speed/power
• High-speed access: 10/12/15/20 ns
• Low operating power
    — Active: ICC = 260 mA (typical)
    — Standby: ISB3 = 10 µA (typical)
• Fully asynchronous operation
• Automatic power-down
• Expandable data bus to 72 bits or more using Master/Slave Chip Select when using more than one device
• On-Chip arbitration logic
• Semaphores included to permit software handshaking between ports
• INT flag for port-to-port communication
• Byte Select on Left Port
• Bus Matching on Right Port
• Depth Expansion via dual chip enables
• Pin select for Master or Slave
• Commercial and Industrial Temperature Ranges
• Compact package
    — 144-Pin TQFP (20 x 20 x 1.4 mm)
    — 172-Ball BGA (1.0 mm pitch) (15 x 15 x .51 mm)