CY7C024AV_09 Datasheet, PDF (1/19 Pages) Cypress Semiconductor – 3.3V 4K/8K/16K x 16/18 Dual-Port Static RAM

CY7C024AV/024BV/025AV/026AV
CY7C0241AV/0251AV/036AV
3.3V 4K/8K/16K x 16/18 Dual-Port
Static RAM
Features
■ True dual-ported memory cells which enable simultaneous
access of the same memory location
■ 4, 8 or 16K × 16 organization
■ (CY7C024AV/024BV ^[1]/ 025AV/026AV)
■ 4 or 8K × 18 organization (CY7C0241AV/0251AV)
■ 16K × 18 organization (CY7C036AV)
■ 0.35 micron CMOS for optimum speed and power
■ High speed access: 20 and 25 ns
■ Low operating power
❐ Active: I_CC = 115 mA (typical)
❐ Standby: I_SB3 = 10 μA (typical)
Logic Block Diagram
R/W_L
UB_L
■ Fully asynchronous operation
■ Automatic power down
■ Expandable data bus to 32 bits, 36 bits or more using Master
and Slave chip select when using more than one device
■ On chip arbitration logic
■ Semaphores included to permit software handshaking
between ports
■ INT flag for port-to-port communication
■ Separate upper byte and lower byte control
■ Pin select for Master or Slave (M/S)
■ Commercial and industrial temperature ranges
■ Available in 100-pin Pb-free TQFP and 100-pin TQFP
R/W_R
UB_R
CE_L
LB_L
OE_L
[2]
8/9
IO_8/9L–IO_15/17L
IO_0L–IO₇^[_/8³_L^]
8/9
IO
Control
IO
Control
CE_R
LB_R
OE_R
8/9
[2]
IO_8/9L–IO_15/17R
8/9
[3]
IO_0L–IO_7/8R
A_0L–A^[₁⁴₁^]_/1213L
12/13/14 _Address
Decode
True Dual-Ported
RAM Array
[4]
12/13/14
A_0L–A_11/12/13L
CE_L
Interrupt
OE_L
Semaphore
R/W_L
Arbitration
SEM_{L [5]}
BUSY_L
INT_L
UB_L
LB_L
M/S
Notes
1. CY7C024AV and CY7C024BV are functionally identical.
2. IO₈–IO₁₅ for x16 devices; IO₉–IO₁₇ for x18 devices.
3. IO₀–IO₇ for x16 devices; IO₀–IO₈ for x18 devices.
4. A₀–A₁₁ for 4K devices; A₀–A₁₂ for 8K devices; A₀–A₁₃ for 16K devices.
5. BUSY is an output in master mode and an input in slave mode.
Address ^12/13/14
Decode
12/13/14
[4]
A_0R–A_11/12/13R
[4]
A_0R–A_11/12/13R
CE_R
OE_R
R/W_R
[5] ^SEMR
BUSY_R
INT_R
UB_R
LB_R
Cypress Semiconductor Corporation • 198 Champion Court
Document #: 38-06052 Rev. *J
• San Jose, CA 95134-1709 • 408-943-2600
Revised December 10, 2008
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