CY7C43663AV Datasheet, PDF (1/28 Pages) Cypress Semiconductor – 3.3V 1K/4K/16K x36 Unidirectional Synchronous FIFO with Bus Matching

CY7C43663AV
CY7C43643AV
CY7C43683AV
3.3V 1K/4K/16K x36 Unidirectional Synchronous
FIFO with Bus Matching
Features
• High-speed, low-power, unidirectional, First-In
First-Out (FIFO) memories with bus-matching capabil-
ities
• 1K × 36 (CY7C43643AV)
• 4K × 36 (CY7C43663AV)
• 16K × 36 (CY7C43683AV)
• 0.25-micron CMOS for optimum speed/power
• High-speed 133-MHz operation (7.5-ns Read/Write
cycle times)
• Low power
— I_CC = 60 mA
— I_SB = 10 mA
• Fully asynchronous and simultaneous Read and Write
operation permitted
• Mailbox bypass register for each FIFO
• Parallel and serial programmable Almost Full and
Almost Empty flags
• Retransmit function
• Standard or FWFT user selectable mode
• Partial reset
• Big or Little Endian format for word or byte bus sizes
• 128-pin TQFP packaging
• Easily expandable in width and depth
Logic Block Diagram
CLKA
CSA
W/RA
ENA
MBA
RT
MRS1
MRS2
PRS
FF/IR
AF
SPM
FS0/SD
FS1/SEN
A_0–35
Port A
Control
Logic
FIFO,
Mail1
Mail2
Reset
Logic
36
Mail1
Register
1K/4K/16K
× 36
Dual Ported
Memory
Write
Pointer
Read
Pointer
Status
Flag Logic
Programmable
Flag Offset
Registers
Timing
Mode
Port B
Control
Logic
MBF1
CLKB
CSB
W/RB
ENB
MBB
BM
SIZE
EF/OR
AE
36
B_0–35
BE/FWFT
MBF2
Mail2
Register
Cypress Semiconductor Corporation • 3901 North First Street • San Jose • CA 95134 • 408-943-2600
Document #: 38-06024 Rev. *C
Revised December 26, 2002