CY7C037AV-20AXC(2011) Просмотр технического описания (PDF) - Cypress Semiconductor
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CY7C037AV-20AXC Datasheet PDF : 22 Pages
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CY7C027V/027AV/028V
CY7C037AV/038V
3.3 V 32K/64K x 16/18 Dual-Port Static
RAM
Features
■ True dual-ported memory cells which allow
simultaneous access of the same memory location
■ 32K x 16 organization (CY7C027V/027AV [1])
■ 64K x 16 organization (CY7C028V)
■ 32K x 18 organization (CY7C037AV)
■ 64K x 18 organization (CY7C038V)
■ 0.35 micron Complementary metal oxide semiconductor
(CMOS) for optimum speed and power
■ High speed access: 15, 20, and 25 ns
■ Low operating power
■ Active: ICC = 115 mA (typical)
■ Standby: ISB3 = 10 A (typical)
Logic Block Diagram
R/WL
UBL
CE0L
CE1L
LBL
OEL
CEL
[2]
8/9
I/O8/9L–I/O15/17L
[3]
8/9
I/O0L–I/O7/8L
I/O
Control
■ Fully asynchronous operation
■ Automatic power-down
■ Expandable data bus to 32/36 bits or more using Master/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
■ Dual chip enables
■ Pin select for Master or Slave
■ Commercial and Industrial temperature ranges
■ 100-pin Pb-free Thin quad plastic flatpack (TQFP) and 100-pin
TQFP
I/O
Control
R/WR
UBR
CER
CE0R
CE1R
LBR
OER
8/9
[2]
I/O8/9L–I/O15/17R
8/9
[3]
I/O0L–I/O7/8R
[4]
A0L–A14/15L
15/16
Address
Decode
True Dual-Ported
RAM Array
[4]
A0L–A14/15L
15/16
CEL
OEL
R/WL
SEML [5]
BUSYL
Notes
INTL
UBL
LBL
1. CY7C027V, and CY7C027AV are functionally identical.
2. I/O8–I/O15 for x16 devices; I/O9–I/O17 for x18 devices.
3. I/O0–I/O7 for x16 devices; I/O0–I/O8 for x18 devices.
4. A0–A14 for 32K; A0–A15 for 64K devices.
5. BUSY is an output in master mode and an input in slave mode.
Interrupt
Semaphore
Arbitration
M/S
Address
Decode
15/16
15/16
[4]
A0R–A14/15R
[4]
A0R–A14/15R
CER
OER
R/WR
SEMR
[5]
BUSYR
INTR
UBR
LBR
Cypress Semiconductor Corporation • 198 Champion Court
Document #: 38-06078 Rev. *E
• San Jose, CA 95134-1709 • 408-943-2600
Revised October 14, 2011
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