Cypress 256K (32K x 8) CY62256 Specification Sheet - Page 2

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Cypress 256K (32K x 8) CY62256 Specification Sheet

Pin Configurations

Narrow SOIC
Top View
A 5
28
V CC
1
A 6
27
WE
2
A 7
26
3
A 4
A 3
A 8
4
25
24
A 9
A 2
5
A 10
23
A 1
6
22
A 11
OE
7
21
A 0
A 12
8
20
A 13
CE
9
19
A 14
10
I/O 7
18
I/O 6
11
I/O 0
17
I/O 5
12
I/O 1
I/O 2
13
16
I/O 4
I/O 3
GND
15
14

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
[2]
in High-Z State
....................................–0.5V to V

Electrical Characteristics

Parameter
Description
V
Output HIGH Voltage
OH
V
Output LOW Voltage
OL
V
Input HIGH Voltage
IH
V
Input LOW Voltage
IL
I
Input Leakage Current
IX
I
Output Leakage Current GND < V
OZ
I
V
Operating Supply
CC
CC
Current
I
Automatic CE
SB1
Power-down Current—
TTL Inputs
Notes:
2.
V
(min.) = 2.0V for pulse durations of less than 20 ns.
IL
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
= 25 C, V
). Parameters are guaranteed by design and characterization, and not 100% tested.
A
CC
Document #: 38-05248 Rev. *B
DIP
Top View
A 5
28
V CC
1
A 6
27
WE
2
A 7
26
3
A 4
A 3
A 8
4
25
24
A 9
A 2
5
A 10
23
A 1
6
22
A 11
OE
7
21
A 0
A 12
8
20
A 13
CE
9
A 14
19
10
I/O 7
18
I/O 6
11
I/O 0
17
12
I/O 5
I/O 1
I/O 2
16
I/O 4
13
I/O 3
GND
15
14
+ 0.5V
CC
Over the Operating Range
Test Conditions
V
= Min., I
= 1.0 mA
CC
OH
V
= Min., I
= 2.1 mA
CC
OL
GND < V
< V
I
CC
< V
, Output Disabled
O
CC
V
= Max., I
= 0 mA,
CC
OUT
f = f
= 1/t
MAX
RC
Max. V
, CE > V
,
CC
IH
V
> V
or V
< V
, f = f
IN
IH
IN
IL
OE
22
A
23
1
A
24
2
A
25
3
A
26
4
WE
27
V
28
CC
A
1
5
A
6
2
(not to scale)
A
7
3
A
4
8
A
5
9
A
6
10
A
7
11
A
11
7
A
10
6
A
5
9
A
8
4
A
3
7
Reverse Pinout
A
2
6
A
1
5
V
28
(not to scale)
CC
27
WE
A
26
4
A
25
3
A
24
2
A
23
1
22
OE
[2]
DC Input Voltage
................................ –0.5V to V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage.......................................... > 2001V
(per MIL-STD-883, Method 3015)
Latch-up Current.................................................... > 200 mA

Operating Range

Range
Ambient Temperature
Commercial
Industrial
CY62256 55
[3]
Min. Typ.
2.4
2.2
–0.5
–0.5
–0.5
28
L
25
LL
25
0.5
MAX
L
0.4
LL
0.3
CY62256
A
21
0
20
CE
I/O
19
7
I/O
18
6
I/O
17
5
I/O
16
4
TSOP I
I/O
15
3
GND
Top View
14
I/O
13
2
I/O
12
1
11
I/O
0
A
10
14
9
A
13
A
8
12
A
8
12
A
9
13
A
10
14
I/O
11
0
TSOP I
I/O
12
1
I/O
13
2
Top View
14
GND
I/O
15
3
16
I/O
4
17
I/O
5
18
I/O
6
19
I/O
7
20
CE
A
21
0
0 C to +70 C
5V
–40 C to +85 C
5V
CY62256 70
[3]
Max.
Min. Typ.
Max.
2.4
0.4
V
2.2
CC
+0.5V
+0.5V
0.8
–0.5
+0.5
–0.5
+0.5
+0.5
–0.5
+0.5
55
28
50
25
50
25
2
0.5
0.6
0.4
0.5
0.3
Page 2 of 11
+ 0.5V
CC
V
CC
10%
10%
Unit
V
0.4
V
V
V
CC
0.8
V
A
A
55
mA
50
mA
50
mA
2
mA
0.6
mA
0.5
mA