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參數(shù)資料
| 型號： | CY7C138AV-20JC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 3.3V 4K/8K/16K/32K x 8/9 Dual-Port Static RAM |
| 中文描述： | 4K X 8 DUAL-PORT SRAM, 20 ns, PQCC68 |
| 封裝： | PLASTIC, LCC-68 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 301K |
| 代理商： | CY7C138AV-20JC |
3.3V 4K/8K/16K/32K x 8/9
Dual-Port Static RAM
CY7C138AV/144AV/006AV
CY7C139AV/145AV/016AV
CY7C007AV/017AV
Cypress Semiconductor Corporation
Document #: 38-06051 Rev. *A
3901 North First Street
San Jose
CA 95134
Revised December 27, 2002
408-943-2600
25/0251
Features
True Dual-Ported memory cells which allow simulta-
neous access of the same memory location
4K/8K/16K/32K x 8 organizations
(CY7C0138AV/144AV/006AV/007AV)
4K/8K/16K/32K x 9 organizations
(CY7C0139AV/145AV/016AV/017AV)
0.35-micron CMOS for optimum speed/power
High-speed access: 20/25 ns
Low operating power
—Active: I
CC
= 115 mA (typical)
—Standby: I
SB3
= 10
μ
A (typical)
Fully asynchronous operation
Automatic power-down
Expandable data bus to 16/18 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
Pin select for Master or Slave
Commercial and Industrial Temperature Ranges
Available in 68-pin PLCC (all) and 64-pin TQFP
(7C006AV & 7C144AV)
Pin-compatible and functionally equivalent to
IDT70V05, 70V06, and 70V07.
Notes:
1.
2.
3.
I/O
0
–
I/O
for x8 devices; I/O
0
–
I/O
for x9 devices.
A
–
A
for 4K devices; A
–
A
for 8K devices; A
–
A
for 16K devices; A
0
–
A
14
for 32K devices;
BUSY is an output in master mode and an input in slave mode.
I/O
Control
Address
Decode
A
0L
–
A
11
–
14L
CE
L
OE
L
R/W
L
SEM
L
BUSY
L
INT
L
I/O
Control
Interrupt
Semaphore
Arbitration
M/S
A
0L
–
A
11
–
14L
True Dual-Ported
RAM Array
A
0R
–
A
11
–
14R
CE
R
OE
R
R/W
R
SEM
R
BUSY
R
INT
R
Address
Decode
A
0R
–
A
11
–
14R
[1]
[1]
[3]
[3]
R/W
L
OE
L
I/O
0L
–
I/O
7/8L
CE
L
R/W
R
OE
R
I/O
0R
–
I/O
7/8R
CE
R
12
–
15
8/9
12
–
15
8/9
12
–
15
12
–
15
[2]
[2]
[2]
[2]
Logic Block Diagram
For the most recent information, visit the Cypress web site at www.cypress.com
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