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CY62256
Document #: 38-05248 Rev. *B Page 2 of 11
Pin Configurations
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature .................................–65°C to +150°C
Ambient Temperature with
Power Applied...................................................0°C to +70°C
Supply Voltage to Ground Potential
(Pin 28 to Pin 14) ........................................... –0.5V to +7.0V
DC Voltage Applied to Outputs
in High-Z State
[2]
....................................–0.5V to V
CC
+ 0.5V
DC Input Voltage
[2]
................................–0.5V to V
CC
+ 0.5V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage.......................................... > 2001V
(per MIL-STD-883, Method 3015)
Latch-up Current.................................................... > 200 mA
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
A
6
A
7
A
8
A
9
A
10
A
11
A
12
A
13
WE
V
CC
A
4
A
3
A
2
A
1
I/O
7
I/O
6
I/O
5
I/O
4
A
14
A
5
I/O
0
I/O
1
I/O
2
CE
OE
A
0
I/O
3
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
A
1
A
2
A
3
A
4
WE
V
CC
A
5
A
6
A
7
A
8
A
9
A
0
CE
I/O
7
I/O
6
I/O
5
GND
I/O
2
I/O
1
I/O
4
I/O
0
A
14
A
10
A
11
A
13
A
12
I/O
3
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
A
1
A
2
A
3
A
4
WE
V
CC
A
5
A
6
A
7
A
8
A
9
A
0
CE
I/O
7
I/O
6
I/O
5
GND
I/O
2
I/O
1
I/O
4
I/O
0
A
14
A
10
A
11
A
13
A
12
I/O
3
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
A
6
A
7
A
8
A
9
A
10
A
11
A
12
A
13
WE
V
CC
A
4
A
3
A
2
A
1
I/O
7
I/O
6
I/O
5
I/O
4
A
14
A
5
I/O
0
I/O
1
I/O
2
CE
OE
A
0
I/O
3
Operating Range
Range Ambient Temperature V
CC
Commercial 0°C to +70°C 5V ± 10%
Industrial –40°C to +85°C 5V ± 10%
Electrical Characteristics Over the Operating Range
Parameter Description Test Conditions
CY62256−55
CY62256−70
UnitMin. Typ.
[3]
Max. Min. Typ.
[3]
Max.
V
OH
Output HIGH Voltage V
CC
= Min., I
OH
= −1.0 mA 2.4 2.4 V
V
OL
Output LOW Voltage V
CC
= Min., I
OL
= 2.1 mA 0.4 0.4 V
V
IH
Input HIGH Voltage 2.2 V
CC
+0.5V
2.2 V
CC
+0.5V
V
V
IL
Input LOW Voltage –0.5 0.8 –0.5 0.8 V
I
IX
Input Leakage Current GND < V
I
< V
CC
–0.5 +0.5 –0.5 +0.5 µA
I
OZ
Output Leakage Current GND < V
O
< V
CC
, Output Disabled –0.5 +0.5 –0.5 +0.5 µA
I
CC
V
CC
Operating Supply
Current
V
CC
= Max., I
OUT
= 0 mA,
f = f
MAX
= 1/t
RC
28 55 28 55 mA
L255025 50 mA
LL 25 50 25 50 mA
I
SB1
Automatic CE
Power-down Current—
TTL Inputs
Max. V
CC
, CE > V
IH
,
V
IN
> V
IH
or V
IN
< V
IL
, f = f
MAX
0.5 2 0.5 2 mA
L0.40.60.4 0.6 mA
LL 0.3 0.5 0.3 0.5 mA
Notes:
2. V
IL
(min.)
= −2.0V for pulse durations of less than 20 ns.
3. 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
CC
). Parameters are guaranteed by design and characterization, and not 100% tested.