
Cypress Semiconductor
Functional Description
The CY7C1441AV33/CY7C1443AV33/CY7C1447AV33[1] are 3.3 V, 1 M × 36/2 M × 18/512 K × 72 Synchronous Flow-through SRAMs, respectively designed to interface with high-speed microprocessors with minimum glue logic. 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
■ 1 M × 36/2 M × 18/512 K × 72 common IO
■ 3.3 V core power supply
■ 2.5 V or 3.3 V IO power supply
■ Fast clock-to-output times
❐ 6.5 ns (133-MHz version)
■ Provide 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
■ CY7C1441AV33, CY7C1443AV33 available in
JEDEC-standard Pb-free 100-pin TQFP package, Pb-free and
non Pb-free 165-ball FBGA package. CY7C1447AV33
available in Pb-free and non Pb-free 209-ball FBGA package
■ IEEE 1149.1 JTAG-Compatible Boundary Scan
■ “ZZ” Sleep Mode option