PRELIMINARY
Switching Waveforms
(continued)
Write Cycle No. 2 (CE Controlled)
[9, 11, 12]
t
WC
ADDRESS
CE
1
t
SA
CE
2
t
SCE2
t
AW
t
PWE
WE
t
SD
DATA IN
DATA
IN
VALID
t
HZWE
DATA I/O
HIGH IMPEDANCE
DATA UNDEFINED
t
HD
t
HA
t
SCE1
CY6264
CY6264-8
Note:
12. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
Typical DC and AC Characteristics
NORMALIZED SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1.4
1.2
1.0
0.8
0.6
0.6
0.4
0.2
0.0
4.0
4.5
5.0
I
SB
5.5
6.0
0.4
0.2
0.0
−55
I
SB
25
125
V
CC
=5.0V
V
IN
=5.0V
60
40
20
0
0.0
1.0
2.0
3.0
4.0
I
CC
0.8
1.2
1.0
NORMALIZED SUPPLY CURRENT
vs. AMBIENT TEMPERATURE
OUTPUT SOURCE CURRENT
vs. OUTPUT VOLTAGE
120
100
80
I
CC
V
CC
=5.0V
T
A
=25°C
SUPPLY VOLTAGE (V)
NORMALIZED ACCESS TIME
vs. SUPPLY VOLTAGE
1.4
1.3
1.2
1.2
1.1
T
A
=25°C
1.0
0.9
0.8
4.0
4.5
5.0
5.5
6.0
0.8
0.6
−55
1.0
1.6
1.4
AMBIENT TEMPERATURE (°C)
NORMALIZED ACCESS TIME
vs. AMBIENT TEMPERATURE
140
120
100
80
60
V
CC
=5.0V
40
20
25
125
0
0.0
OUTPUT VOLTAGE (V)
OUTPUT SINK CURRENT
vs. OUTPUT VOLTAGE
V
CC
=5.0V
T
A
=25°C
1.0
2.0
3.0
4.0
SUPPLY VOLTAGE (V)
AMBIENT TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
5
CYPRESS [ CYPRESS SEMICONDUCTOR ]
