CY7C128A Cypress Semiconductor, CY7C128A Datasheet - Page 5
CY7C128A
Manufacturer Part Number
CY7C128A
Description
2K x 8 Static RAM
Manufacturer
Cypress Semiconductor
Datasheet
1.CY7C128A.pdf
(9 pages)
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Switching Waveforms (continued)
Write Cycle No. 2 (CE Controlled)
Notes:
Typical DC and AC Characteristics
14. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
ADDRESS
DATA I/O
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.4
1.3
1.2
1.1
1.0
0.9
0.8
DATA IN
4.0
4.0
NORMALIZED ACCESS TIME
vs. SUPPLY VOLTAGE
NORMALIZED SUPPLY CURRENT
vs. SUPPLY VOLTAGE
CE
WE
SUPPLY VOLTAGE(V)
SUPPLY VOLTAGE(V)
4.5
4.5
I
CC
5.0
5.0
T
I
SB
A
=25 C
5.5
5.5
DATA UNDEFINED
[9,13,14]
6.0
6.0
t
SA
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.6
1.4
1.2
1.0
0.8
0.6
–55
–55
NORMALIZED SUPPLY CURRENT
vs. AMBIENT TEMPERATURE
NORMALIZED ACCESS TIME
vs. AMBIENT TEMPERATURE
AMBIENT TEMPERATURE( C)
t
AMBIENT TEMPERATURE( C)
AW
I
SB
t
WC
25
25
5
V
DATA
V
V
CC
CC
IN
t
HZWE
=5.0V
=5.0V
=5.0V
IN
t
PWE
VALID
t
SCE
t
SD
I
CC
125
125
HIGH IMPEDANCE
140
120
100
120
100
80
60
40
20
80
60
40
20
0
0.0
0
0.0
OUTPUT SINK CURRENT
vs. OUTPUT VOLTAGE
OUTPUT SOURCE CURRENT
vs. OUTPUT VOLTAGE
t
HD
OUTPUT VOLTAGE(V)
t
HA
1.0
OUTPUT VOLTAGE(V)
1.0
2.0
2.0
V
T
V
T
A
CY7C128A
CC
CC
A
=25 C
=25 C)
3.0
=5.0V
3.0
=5.0V
C128A–9
4.0
4.0