cy62256ll-55ze Cypress Semiconductor Corporation., cy62256ll-55ze Datasheet - Page 2

• Manufacturer Part Number: cy62256ll-55ze
• Description: 256k 32k X 8 Static Ram
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-05248 Rev. *F
Product Portfolio
Pin Configurations
Pin Definitions
CY62256L
CY62256LL
CY62256LL
CY62256LL
1–10, 21, 23–26
11–13, 15–19,
27
20
22
14
28
Note:
2. Typical specifications are the mean values measured over a large sample size across normal production process variations and are taken at nominal conditions
(T
A
= 25°C, V
Pin Number
GND
Product
I/O 0
I/O 1
I/O 2
A 10
A 11
A 12
A 13
A 14
A 5
A 6
A 7
A 8
A 9
CC
). Parameters are guaranteed by design and characterization, and not 100% tested.
Narrow SOIC
Com’l/Ind’l
Commercial
Industrial
Automotive
Top View
13
14
1
2
3
4
5
6
7
8
9
10
11
12
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Input
Input/Output
Input/Control
Input/Control
Input/Control
Ground
Power Supply V
I/O 3
V CC
WE
A 4
A 3
A 2
A 1
OE
A 0
CE
I/O 7
I/O 6
I/O 5
I/O 4
Type
Min.
4.5
A
I/O
WE. When selected LOW, a WRITE is conducted. When selected HIGH, a READ is
conducted
CE. When LOW, selects the chip. When HIGH, deselects the chip
OE. Output Enable. Controls the direction of the I/O pins. When LOW, the I/O pins
behave as outputs. When deasserted HIGH, I/O pins are Tri-stated, and act as input
data pins
GND. Ground for the device
CC
0
–A
0
GND
–/O
I/O 0
I/O 1
I/O 2
. Power supply for the device
V
A 10
A 11
A 12
A 13
A 14
14
A 5
A 6
A 7
A 8
A 9
CC
Typ.
. Address Inputs
7
. Data lines. Used as input or output lines depending on operation
Range (V)
5.0
Top View
13
14
1
2
3
4
5
6
7
8
9
10
11
12
[2]
DIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
I/O 3
V CC
WE
A 4
A 3
A 2
A 1
OE
A 0
CE
I/O 7
I/O 6
I/O 5
I/O 4
Max.
5.5
Speed
Description
55/70
55/70
(ns)
70
55
V
WE
A
A
OE
V
A
A
WE
CC
A
A
A
A
A
A
A
A
A
OE
10
11
CC
A
A
A
A
A
A
A
A
A
11
10
1
2
3
4
5
6
7
8
9
9
8
6
5
4
3
2
1
7
22
23
24
25
26
4
5
6
7
27
28
1
2
3
26
25
24
23
22
7
6
5
4
3
2
1
28
27
Typ.
Operating, I
25
25
25
25
[2]
Reverse Pinout
(not to scale)
(not to scale)
(mA)
Top View
TSOP I
Top View
Power Dissipation
TSOP I
Max.
50
50
50
50
CC
Typ.
Standby, I
CY62256
0.1
0.1
0.1
2
10
11
12
13
14
15
16
17
18
19
20
21
21
20
19
18
17
16
15
14
13
12
11
10
8
9
Page 2 of 14
9
8
[2]
(µA)
A
CE
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
A
A
A
A
A
A
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O
CE
A
0
14
13
12
12
13
14
0
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7
Max.
SB2
50
10
15
5
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