SRAM Chip Async Dual 5V 256K-Bit 16K x 16 20ns 100-Pin TQFP

The CY7C026A is a low power CMOS 16 K × 16 dual-port static RAM. Various arbitration schemes are included on the devices to handle situations when multiple processors access the same piece of data. Two ports are provided, permitting independent, asynchronous access for reads and writes to any location in memory. The device can be utilized as standalone 16-bit dual-port static RAM or multiple devices can be combined to function as a 32-bit or wider master/slave dual-port static RAM.

• True dual-ported memory cells that allow simultaneous access of the same memory location
• 16 K × 16 organization (CY7C026A)
• 0.35 micron CMOS for optimum speed and power
• High speed access: 15, and 20 ns
• Low operating power
• Active: ICC = 180 mA (typical)
• Standby: ISB3 = 0.05 mA (typical)
• Fully asynchronous operation
• Automatic power-down
• Expandable data bus to 32 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/ flags for port-to-port communication
• Separate upper-byte and lower-byte control
• Pin select for Master or Slave
• Commercial and Industrial temperature ranges
• Available in 100-pin thin quad plastic flatpack (TQFP)
• Pb-free packages available