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CY7C164-15VCT PDF预览

CY7C164-15VCT

更新时间: 2024-02-14 06:57:58
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赛普拉斯 - CYPRESS 存储内存集成电路静态存储器光电二极管
页数 文件大小 规格书
9页 174K
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CY7C164-15VCT 数据手册

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66  
CY7C164  
CY7C166  
16K x 4 Static RAM  
three-state drivers. The CY7C166 has an active LOW Output  
Enable (OE) feature. Both devices have an automatic power-  
down feature, reducing the power consumption by 65% when  
deselected.  
Features  
High speed  
— 15 ns  
Writing to the device is accomplished when the Chip Enable  
(CE) and Write Enable (WE) inputs are both LOW (and the  
Output Enable (OE) is LOW for the CY7C166). Data on the  
four input/output pins (I/O0 through I/O3) is written into the  
memory location specified on the address pins (A0 through  
A13).  
Output enable (OE) feature (CY7C166)  
CMOS for optimum speed/power  
Low active power  
633 mW  
Low standby power  
Reading the device is accomplished by taking Chip Enable  
(CE) LOW (and OE LOW for CY7C166), while Write Enable  
(WE) remains HIGH. Under these conditions the contents of  
the memory location specified on the address pins will appear  
on the four data I/O pins.  
110 mW  
TTL-compatible inputs and outputs  
Automatic power-down when deselected  
Functional Description  
The I/O pins stay in a high-impedance state when Chip Enable  
(CE) is HIGH (or Output Enable (OE) is HIGH for CY7C166).  
A die coat is used to insure alpha immunity.  
The CY7C164 and CY7C166 are high-performance CMOS  
static RAMs organized as 16,384 by 4 bits. Easy memory ex-  
pansion is provided by an active LOW Chip Enable (CE) and  
Logic Block Diagram  
Pin Configurations  
SOJ  
Top View  
DIP  
Top View  
A
V
A
V
CC  
1
2
3
4
5
6
7
8
9
22  
21  
20  
19  
5
CC  
5
1
24  
A
A
A
A
4
A
3
6
4
6
2
3
4
23  
22  
21  
20  
19  
18  
17  
A
A
3
A
7
7
A
8
A
A
A
2
A
1
8
2
A
A
1
A
18  
17  
16  
15  
9
9
5
6
7
8
9
10  
11  
12  
7C164  
A
A
A
A
A
A
A
A
7C164  
A
A
0
10  
11  
10  
11  
0
I/O  
I/O  
I/O  
I/O  
NC  
I/O  
3
2
1
0
12  
13  
12  
13  
3
I/O  
I/O  
I/O  
14  
13  
12  
16  
2
1
0
CE  
NC  
CE  
GND  
10  
11  
15  
14  
13  
WE  
INPUT BUFFER  
GND  
WE  
C1643  
C1642  
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
I/O  
I/O  
3
DIP/SOJ  
Top View  
2
256 x 64 x 4  
ARRAY  
A
5
V
CC  
1
2
3
24  
23  
22  
I/O  
I/O  
1
A
6
A
4
A
A
3
7
0
A
4
5
6
7
A
8
21  
20  
19  
18  
17  
2
A
A
1
9
A
A
A
A
7C166  
POWER  
DOWN  
A
0
10  
11  
COLUMN  
DECODER  
NC  
I/O  
CE  
12  
13  
8
3
I/O  
I/O  
I/O  
9
16  
15  
14  
13  
2
1
0
WE  
(OE)  
(7C166 ONLY)  
CE  
OE  
GND  
10  
11  
12  
WE  
C1661  
C1644  
]
Selection Guide  
7C164-15  
7C166-15  
7C164-20  
7C166-20  
7C164-25  
7C166-25  
7C164-35  
7C166-35  
Maximum Access Time (ns)  
15  
115  
20  
20  
115  
20  
25  
105  
20  
35  
105  
20  
Maximum Operating Current (mA)  
Maximum Standby Current (mA)  
Cypress Semiconductor Corporation  
3901 North First Street  
San Jose  
CA 95134  
408-943-2600  
Document #: 38-05025 Rev. **  
Revised August 24, 2001  

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