CY62256 Cypress Semiconductor, CY62256 Datasheet - Page 3

• Manufacturer Part Number: CY62256
• Description: 256K (32K x 8) Static RAM
• Manufacturer: Cypress Semiconductor

Document #: 38-05248 Rev. *B
Electrical Characteristics
Capacitance
AC Test Loads and Waveforms
Data Retention Characteristics
Data Retention Waveform
Notes:
I
C
C
OUTPUT
4.
5.
Parameter
SB2
V
I
t
t
CCDR
CDR
R
IN
OUT
DR
[4]
Parameter
Tested initially and after any design or process changes that may affect these parameters.
No input may exceed V
INCLUDING
[4]
5V
JIG AND
Parameter
SCOPE
V
100 pF
CE
CC
Automatic CE
Power-down Current—
CMOS Inputs
[4]
R1 1800
Description
V
Data Retention Current
Chip Deselect to Data Retention Time
Operation Recovery Time
(a)
CC
CC
for Data Retention
+ 0.5V.
R2
990
Input Capacitance
Output Capacitance
Description
Over the Operating Range (continued)
OUTPUT
Description
INCLUDING
Max. V
V
0.3V, f = 0
Indust’l Temp Range
5V
IN
Equivalent to:
JIG AND
> V
SCOPE
t
CDR
3.0V
5 pF
CC
CC
L
LL
LL Ind’l
, CE > V
Test Conditions
0.3V, or V
OUTPUT
(b)
R1 1800
CC
T
V
IN
THÉ VENIN EQUIVALENT
V
V
A
CC
DATA RETENTION MODE
0.3V
R2
990
CC
IN
<
= 25 C, f = 1 MHz,
= 5.0V
> V
= 3.0V, CE > V
Test Conditions
CC
Conditions
L
LL
LL
V
639
DR
0.3V, or V
> 2V
Min. Typ.
CC
GND
3.0V
[5]
IN
CY62256 55
< 5 ns
1.77V
< 0.3V
0.3V,
0.1
0.1
1
2
10%
[3]
Min.
Max.
2.0
t
RC
50
10
0
5
5
ALL INPUT PULSES
90%
3.0V
Max.
t
R
Min. Typ.
6
8
Typ.
0.1
0.1
2
CY62256 70
[3]
0.1
0.1
1
2
[3]
Max.
50
10
CY62256
5
90%
Page 3 of 11
Max.
10%
50
10
Unit
5
5
pF
pF
< 5 ns
Unit
ns
ns
V
Unit
A
A
A
mA
A
A
A