CY7C138-25JXI IC SRAM 32KBIT PARALLEL 68PLCC Cypress Semiconductor Corp

 

Functional Description

The CY7C1381D/CY7C1381F/CY7C1383D/CY7C1383F is a 3.3 V, 512 K × 36 and 1 M × 18 synchronous flow through SRAMs, designed to interface with high speed microprocessors with minimum glue logic[1]. Maximum access delay from clock rise is 6.5 ns (133 MHz version). A 2-bit on-chip counter captures the first address in a burst and increments the address automatically for the rest of the burst access.

 

 

Features

■ Supports 133 MHz bus operations
■ 512 K × 36 and 1 M × 18 common I/O
■ 3.3 V core power supply (VDD)
■ 2.5 V or 3.3 V I/O supply (VDDQ)
■ Fast clock-to-output time
❐ 6.5 ns (133 MHz version)
■ Provides high performance 2-1-1-1 access rate
■ User selectable burst counter supporting Intel Pentium interleaved or linear burst sequences
■ Separate processor and controller address strobes
■ Synchronous self-timed write
■ Asynchronous output enable
■ CY7C1381D/CY7C1381F available in JEDEC-standard
Pb-free 100-pin TQFP, Pb-free and non Pb-free 165-ball
FPBGA package. CY7C1381F/CY7C1383F available in
Pb-free and non Pb-free 119-ball BGA package
■ IEEE 1149.1 JTAG-Compatible Boundary Scan
■ ZZ sleep mode option