Functional Description[1]

The CY7C1328F SRAM integrates 262,144 x 18 SRAM cells with advanced synchronous peripheral circuitry and a two-bit counter for internal burst operation.

Features

• Registered inputs and outputs for pipelined operation

• Optimal for performance (Double-Cycle deselect)

— Depth expansion without wait state

• 256K × 18-bit common I/O architecture

• 3.3V –5 and +10 core power supply (VDD)

• 3.3V / 2.5V I/O supply (VDDQ)

• Fast clock-to-output times

— 2.6 ns (for 250-MHz device)

— 2.6 ns (for 225-MHz device)

— 2.8 ns (for 200-MHz device)

— 3.5 ns (for 166-MHz device)

— 4.0 ns (for 133-MHz device)

— 4.5 ns (for 100-MHz device)

• Provide high-performance 3-1-1-1 access rate

• User-selectable burst counter supporting Intel® Pentium® interleaved or linear burst sequences

• Separate processor and controller address strobes

• Synchronous self-timed writes

• Asynchronous Output Enable

• JEDEC-standard 100-pin TQFP package and pinout

• “ZZ” Sleep Mode option