Static RAM Specification Sheet

CY62256
Document #: 38-05248 Rev. *B Page 8 of 11
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
NORMALIZED I
PO
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
DELTA t (ns)
AA
CAPACITANCE (pF)
TYPICAL ACCESS TIME CHANGE
vs. OUTPUT LOADING
1.25
1.00
0.75
10 20 30 40
NORMALIZED I
CC
CYCLE FREQUENCY (MHz)
NORMALIZED I
CC
vs.CYCLETIME
0.0
5.0
0.0
1000
0.50
V
CC
=4.5V
T
A
=25°C
V
CC
=5.0V
T
A
=25°C
V
IN
=0.5V
Truth Table
CE WE OE Inputs/Outputs Mode Power
H X X High-Z Deselect/Power-down Standby (I
SB
)
L H L Data Out Read Active (I
CC
)
L L X Data In Write Active (I
CC
)
L H H High-Z Deselect, Output Disabled Active (I
CC
)
Ordering Information
Speed
(ns) Ordering Code
Package
Name Package Type
Operating
Range
55 CY62256LL−55SNI SN28 28-lead (300-Mil Narrow Body) Narrow SOIC Industrial
CY62256LL−55ZI Z28 28-lead Thin Small Outline Package
70 CY62256−70SNC SN28 28-lead (300-Mil Narrow Body) Narrow SOIC Commercial
CY62256L−70SNC
CY62256LL−70SNC
CY62256L–70SNI Industrial
CY62256LL−70SNI
CY62256LL−70ZC Z28 28-lead Thin Small Outline Package Commercial
CY62256LL−70ZI Z28 Industrial
CY62256−70PC P15 28-lead (600-Mil) Molded DIP Commercial
CY62256L−70PC P15
CY62256LL−70PC P15
CY62256LL−70ZRI ZR28 28-lead Reverse Thin Small Outline Package
Industrial