9 / 14 page
CY62256N
Document #: 001-06511 Rev. *B
Page 9 of 14
Typical DC and AC Characteristics (continued)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1.0
2.0
3.0
4.0
SUPPLY VOLTAGE (V)
TYPICAL POWER-ON CURRENT
vs. SUPPLY VOLTAGE
30.0
25.0
20.0
15.0
10.0
5.0
0
200
400
600
800
CAPACITANCE (pF)
TYPICAL ACCESS TIME CHANGE
vs. OUTPUT LOADING
1.25
1.00
0.75
10
20
30
40
CYCLE FREQUENCY (MHz)
0.0
5.0
0.0
1000
0.50
NORMALIZED ICC vs. CYCLE TIME
TA = 25°C
VCC = 5.0V
VIN = 5.0V
TA = 25°C
VCC = 4.5V
Truth Table
CE
WE
OE
Inputs/Outputs
Mode
Power
H
X
X
High-Z
Deselect/Power down
Standby (ISB)
L
H
L
Data Out
Read
Active (ICC)
L
L
X
Data In
Write
Active (ICC)
L
H
H
High-Z
Output Disabled
Active (ICC)
[+] Feedback