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CY62256
Document #: 38-05248 Rev. *C
Page 2 of 12
Product Portfolio
Pin Configurations
Pin Definitions
Product
VCC Range (V)
Speed
(ns)
Power Dissipation
Operating, ICC
(mA)
Standby, ISB2
(
µA)
Min.
Typ.[2]
Max.
Typ.[2]
Max.
Typ.[2]
Max.
CY62256
Commercial
4.5
5.0
5.5
70
28
55
1
5
CY62256L
Com’l / Ind’l
55/70
25
50
2
50
CY62256LL
Commercial
70
25
50
0.1
5
CY62256LL
Industrial
55/70
25
50
0.1
10
CY62256LL
Automotive
55
25
50
0.1
15
1
2
3
4
5
6
7
8
9
10
11
14
15
16
20
19
18
17
21
24
23
22
Top View
Narrow SOIC
12
13
25
28
27
26
GND
A6
A7
A8
A9
A10
A11
A12
A13
WE
VCC
A4
A3
A2
A1
I/O7
I/O6
I/O5
I/O4
A14
A5
I/O0
I/O1
I/O2
CE
OE
A0
I/O3
22
23
24
25
26
27
28
1
2
5
10
11
15
14
13
12
16
19
18
17
3
4
20
21
7
6
8
9
OE
A1
A2
A3
A4
WE
VCC
A5
A6
A7
A8
A9
A0
CE
I/O7
I/O6
I/O5
GND
I/O2
I/O1
I/O4
I/O0
A14
A10
A11
A13
A12
I/O3
TSOP I
Top View
(not to scale)
Reverse Pinout
22
23
24
25
26
27
28
1
2
5
10
11
15
14
13
12
16
19
18
17
3
4
20
21
7
6
8
9
OE
A1
A2
A3
A4
WE
VCC
A5
A6
A7
A8
A9
A0
CE
I/O7
I/O6
I/O5
GND
I/O2
I/O1
I/O4
I/O0
A14
A10
A11
A13
A12
I/O3
TSOP I
Top View
(not to scale)
1
2
3
4
5
6
7
8
9
10
11
14
15
16
20
19
18
17
21
24
23
22
Top View
DIP
12
13
25
28
27
26
GND
A6
A7
A8
A9
A10
A11
A12
A13
WE
VCC
A4
A3
A2
A1
I/O7
I/O6
I/O5
I/O4
A14
A5
I/O0
I/O1
I/O2
CE
OE
A0
I/O3
Pin Number
Type
Description
1-10, 21, 23-26
Input
A0-A14. Address Inputs
11-13, 15-19,
Input/Output
I/O0-I/O7. Data lines. Used as input or output lines depending on operation
27
Input/Control WE. When selected LOW, a WRITE is conducted. When selected HIGH, a READ is
conducted
20
Input/Control CE. When LOW, selects the chip. When HIGH, deselects the chip
22
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
(TA = 25°C, VCC). Parameters are guaranteed by design and characterization, and not 100% tested.