CY62256
Typical DC and AC Characteristics (continued)
TYPICAL POWER-ON CURRENT
vs. SUPPLY VOLTAGE
3.0
TYPICAL ACCESS TIME CHANGE
vs. OUTPUT LOADING
30.0
2.5
25.0
2.0
20.0
1.5
15.0
1.0
10.0
VCC =4.5V
TA =25°C
0.5
5.0
0.0
0.0 1.0 2.0 3.0 4.0 5.0
SUPPLY VOLTAGE (V)
0.0
0
200 400 600 800 1000
CAPACITANCE (pF)
NORMALIZED I CC vs.CYCLE TIME
1.25
1.00
VCC =5.0V
TA =25°C
VIN =0.5V
0.75
0.50
10
20
30
40
CYCLE FREQUENCY (MHz)
Truth Table
CE WE
H
X
L
H
L
L
L
H
OE
Inputs/Outputs
X High-Z
L Data Out
X Data In
H High-Z
Mode
Deselect/Power-down
Read
Write
Output Disabled
Power
Standby (ISB)
Active (ICC)
Active (ICC)
Active (ICC)
Ordering Information
Speed
(ns)
55
70
Ordering Code
CY62256LL−55SNI
CY62256LL−55ZI
CY62256LL−55SNE
CY62256LL−55ZE
CY62256LL−55ZRE
CY62256−70SNC
CY62256L−70SNC
CY62256LL−70SNC
CY62256L–70SNI
CY62256LL−70SNI
CY62256LL−70ZC
CY62256LL−70ZI
CY62256−70PC
CY62256L−70PC
CY62256LL−70PC
CY62256LL−70ZRI
Package
Name
SN28
Z28
SN28
Z28
ZR28
SN28
Package Type
28-lead (300-Mil Narrow Body) Narrow SOIC
28-lead Thin Small Outline Package
28-lead (300-Mil Narrow Body) Narrow SOIC
28-lead Thin Small Outline Package
28-lead Reverse Thin Small Outline Package
28-lead (300-Mil Narrow Body) Narrow SOIC
Z28
Z28
P15
P15
P15
ZR28
28-lead Thin Small Outline Package
28-lead (600-Mil) Molded DIP
28-lead Reverse Thin Small Outline Package
Operating
Range
Industrial
Automotive
Commercial
Industrial
Commercial
Industrial
Commercial
Industrial
Document #: 38-05248 Rev. *C
Page 9 of 12