Cypress Semiconductor CY7C037V Hoja de especificaciones
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Features
■
True Dual-Ported memory cells which allow
simultaneous access of the same memory location
■
32K x 16 organization (CY7C027V/027VN/027AV
■
64K x 16 organization (CY7C028V)
■
32K x 18 organization (CY7C037V/037AV
■
64K x 18 organization (CY7C038V)
■
0.35 micron CMOS for optimum speed and power
■
High speed access: 15, 20, and 25 ns
■
Low operating power
■
Active: I
= 115 mA (typical)
CC
= 10 μA (typical)
■
Standby: I
SB3
Logic Block Diagram
R/W
L
UB
L
CE
0L
CE
1L
CE
L
LB
L
OE
L
[3]
I/O
–I/O
8/9L
15/17L
[4]
I/O
–I/O
0L
7/8L
15/16
[5]
A
–A
0L
14/15L
[5]
A
–A
0L
14/15L
CE
L
OE
L
R/W
L
SEM
L
[6]
BUSY
L
INT
L
UB
L
LB
L
Notes
1. CY7C027V, CY7C027VN and CY7C027AV are functionally identical.
2. CY7C037V and CY7C037AV are functionally identical.
3. I/O
–I/O
for x16 devices; I/O
–I/O
8
15
9
4. I/O
–I/O
for x16 devices; I/O
–I/O
0
7
0
5. A
–A
for 32K; A
–A
for 64K devices.
0
14
0
15
6. BUSY is an output in master mode and an input in slave mode.
Cypress Semiconductor Corporation
Document #: 38-06078 Rev. *B
3.3V 32K/64K x 16/18 Dual-Port Static
[1]
)
[2]
)
8/9
8/9
I/O
Control
Address
True Dual-Ported
RAM Array
Decode
15/16
Semaphore
for x18 devices.
17
for x18 devices.
8
•
198 Champion Court
CY7C027V/027VN/027AV/028V
■
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 TQFP and 100-pin TQFP
I/O
Control
Address
Decode
15/16
Interrupt
Arbitration
M/S
•
San Jose
CY7C037V/037AV/038V
R/W
R
UB
R
CE
0R
CE
CE
1R
R
LB
R
OE
R
8/9
[3]
I/O
–I/O
8/9L
15/17R
8/9
[4]
I/O
–I/O
0L
7/8R
15/16
[5]
A
–A
0R
14/15R
[5]
A
–A
0R
14/15R
CE
R
OE
R
R/W
R
SEM
R
[6]
BUSY
R
INT
R
UB
R
LB
R
,
CA 95134-1709
•
408-943-2600
Revised December 09, 2008
RAM
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