CY62256
Product Portfolio
Power Dissipation
Operating, ICC
Standby, ISB2
VCC Range (V)
Typ.[2]
(mA)
(µA)
Speed
(ns)
70
55/70
70
55/70
55
Product
Min.
Max.
5.5
Typ.[2]
28
Max.
55
Typ.[2]
1
Max.
5
CY62256
Commercial
4.5
5.0
CY62256L
CY62256LL
CY62256LL
CY62256LL
Com’l / Ind’l
Commercial
Industrial
25
50
2
50
5
10
15
25
50
0.1
0.1
0.1
25
50
Automotive
25
50
Pin Configurations
21
20
A
OE
22
23
24
25
26
27
28
1
2
3
4
5
0
A
1
CE
19
18
17
16
15
14
13
12
11
10
9
8
I/O
A
2
Narrow SOIC
Top View
7
DIP
I/O
I/O
I/O
I/O
A
3
6
Top View
A
4
5
4
3
WE
TSOP I
Top View
A
28
V
CC
V
1
A
5
28
V
CC
1
5
CC
GND
A
5
27 WE
A
2
27 WE
A
6
2
I/O
2
6
A
6
(not to scale)
A
I/O
1
26
A
A7
3
4
5
6
A
7
A
26
A
3
4
5
6
7
4
4
I/O
0
8
A
A
A
25
3
A
8
25
3
8
A
A
14
9
24
A
24
A
A
A
A
9
A
13
6
7
9
2
10
2
A
A
12
11
A
A
23
22
A
A
23
22
A
10
1
10
1
OE
A
OE
11
12
13
7
A11
A10
11
7
8
9
A12
A13
A14
I/O0
I/O1
I/O2
7
6
5
4
3
A
0
21
20
19
18
17
16 I/O
15
A
0
A
21
20
19
18
17
16 I/O
15
A
8
8
12
10
11
12
13
14
15
16
17
18
19
20
21
A9
A
CE
I/O
9
A
CE
I/O
9
13
A8
TSOP I
Reverse Pinout
Top View
A
10
11
12
13
14
A
10
11
12
13
14
14
I/O
A67
A
14
7
7
2
I/O
I/O
6
I/O
6
0
0
GND
A5
1
I/O
I/O
I/O
5
I/O
1
5
1
28
I/O3
VCC
(not to scale)
I/O
I/O
2
27
26
25
24
23
I/O4
I/O5
I/O6
I/O7
CE
2
4
4
WE
A4
I/O
GND
I/O
3
GND
3
A3
A2
A1
22
A0
OE
Pin Definitions
Pin Number
1-10, 21, 23-26
11-13, 15-19,
27
Type
Input
Input/Output I/O0-I/O7. Data lines. Used as input or output lines depending on operation
Description
A0-A14. Address Inputs
Input/Control WE. When selected LOW, a WRITE is conducted. When selected HIGH, a READ is
conducted
20
22
Input/Control CE. When LOW, selects the chip. When HIGH, deselects the chip
Input/Control 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 three-stated, and act as
input data pins
14
Ground
GND. Ground for the device
28
Power Supply Vcc. Power supply for the device
Notes:
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 = 25°C, V ). Parameters are guaranteed by design and characterization, and not 100% tested.
A
CC
Document #: 38-05248 Rev. *C
Page 2 of 12
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