CY62128VLL-55ZAI Datasheet Download

Part No.:
CY62128VLL-55ZAI
Download:
Download Datasheet
Description:
[128K x 8 Static RAM]
File Size:
339 K
Page:
12 Pages
Logo:
Manufacturer:
CYPRESS [ CYPRESS SEMICONDUCTOR ]
PCB Prototype
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1*CY62128V Family
CY62128V Family
128K x 8 Static RAM
Features
• Low voltage range:
— 2.7V–3.6V (CY62128V)
— 2.3V–2.7V (CY62128V25)
— 1.6V–2.0V (CY62128V18)
Low active power and standby power
Easy memory expansion with CE and OE features
TTL-compatible inputs and outputs
Automatic power-down when deselected
CMOS for optimum speed/power
LOW Output Enable (OE) and three-state drivers. These de-
vices have an automatic power-down feature, reducing the
power consumption by over 99% when deselected. The
CY62128V family is available in the standard 450-mil-wide
SOIC, 32-lead TSOP-I, and STSOP packages.
Writing to the device is accomplished by taking Chip Enable
one (CE
1
) and Write Enable (WE) inputs LOW and the Chip
Enable two (CE
2
) input HIGH. Data on the eight I/O pins (I/O
0
through I/O
7
) is then written into the location specified on the
address pins (A
0
through A
16
).
Reading from the device is accomplished by taking Chip En-
able one (CE
1
) and Output Enable (OE) LOW while forcing
Write Enable (WE) and Chip Enable two (CE
2
) HIGH. Under
these conditions, the contents of the memory location speci-
fied by the address pins will appear on the I/O pins.
The eight input/output pins (I/O
0
through I/O
7
) are placed in a
high-impedance state when the device is deselected (CE
1
HIGH or CE
2
LOW), the outputs are disabled (OE HIGH), or
during a write operation (CE
1
LOW, CE
2
HIGH, and WE LOW).
Functional Description
The CY62128V family is composed of three high-performance
CMOS static RAMs organized as 131,072 words by 8 bits.
Easy memory expansion is provided by an active LOW Chip
Enable (CE
1
), an active HIGH Chip Enable (CE
2
), an active
Logic Block Diagram
Pin Configurations
Top View
SOIC
NC
A
16
A
14
A
12
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
I/O
0
I/O
1
I/O
2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
CC
A
15
CE
2
WE
A
13
A
8
A
9
A
11
OE
A
10
CE
1
I/O
7
I/O
6
I/O
5
I/O
4
I/O
3
INPUT BUFFER
I/O
0
I/O
1
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
ROW DECODER
SENSE AMPS
I/O
2
I/O
3
I/O
4
I/O
5
512x 256x 8
ARRAY
62128V-2
CE
1
CE
2
WE
OE
COLUMN
DECODER
POWER
DOWN
I/O
6
I/O
7
A
9
A
10
A
11
A
12
A
13
A
14
A
15
A
16
62128V-1
A
4
A
5
A
6
A
7
A
12
A
14
A
16
NC
V
CC
A
15
CE
2
WE
A
13
A
8
A
9
A
11
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Reverse TSOP I
Top View
(not to scale)
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
A
3
A
2
A
1
A
0
I/O
0
I/O
1
I/O
2
GND
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
CE
1
A
10
OE
A
11
A
9
A
8
A
13
WE
CE
2
A
15
V
CC
NC
A
16
A
14
A
12
A
7
A
6
A
5
A
4
25
26
27
26
28
29
30
31
32
1
2
3
4
5
6
7
8
STSOP
Top View
(not to scale)
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
OE
A
10
CE
1
I/O
7
I/O
6
I/O
5
I/O
4
I/O
3
GND
I/O
2
I/O
1
I/O
0
A
0
A
1
A
2
A
3
A
11
A
9
A
8
A
13
WE
CE
2
A
15
V
CC
NC
A
16
A
14
A
12
A
7
A
6
A
5
A
4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TSOP I
Top View
(not to scale)
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A
10
CE
1
I/O
7
I/O
6
I/O
5
I/O
4
I/O
3
GND
I/O
2
I/O
1
I/O
0
A
0
A
1
A
2
A
3
62128V-3
62128V-4
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134
408-943-2600
March 27, 2001