CY62256 Cypress Semiconductor, CY62256 Datasheet - Page 8

• Manufacturer Part Number: CY62256
• Description: 256K (32K x 8) Static RAM
• Manufacturer: Cypress Semiconductor

Document #: 38-05248 Rev. *B
Typical DC and AC Characteristics
Truth Table
Ordering Information
Speed
CE
3.0
2.5
2.0
1.5
1.0
0.5
H
0.0
L
L
L
(ns)
55
70
0.0
TYPICAL POWER-ON CURRENT
vs. SUPPLY VOLTAGE
WE
1.0
SUPPLY VOLTAGE (V)
X
H
H
L
CY62256LL 55SNI
CY62256LL 55ZI
CY62256 70SNC
CY62256L 70SNC
CY62256LL 70SNC
CY62256L–70SNI
CY62256LL 70SNI
CY62256LL 70ZC
CY62256LL 70ZI
CY62256 70PC
CY62256L 70PC
CY62256LL 70PC
CY62256LL 70ZRI
2.0
Ordering Code
OE
H
X
X
L
3.0
High-Z
Data Out
Data In
High-Z
4.0
Inputs/Outputs
5.0
Package
Name
SN28
SN28
ZR28
Z28
Z28
Z28
P15
P15
P15
30.0
25.0
20.0
15.0
10.0
0.0
5.0
(continued)
0
TYPICAL ACCESS TIME CHANGE
vs. OUTPUT LOADING
200
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 (600-Mil) Molded DIP
28-lead Reverse Thin Small Outline Package
CAPACITANCE (pF)
Deselect/Power-down
Read
Write
Deselect, Output Disabled
400
V
T
CC
A
600
=25 C
=4.5V
800
Package Type
Mode
1000
1.25
1.00
0.75
0.50
10
NORMALIZED I
CYCLE FREQUENCY (MHz)
V
T
V
A
CC
IN
=25 C
=0.5V
20
=5.0V
Standby (I
Active (I
Active (I
Active (I
CC
vs.CYCLE TIME
CC
CC
CC
Power
30
SB
)
)
)
CY62256
Commercial
Commercial
Commercial
Operating
)
Industrial
Industrial
Industrial
Industrial
Page 8 of 11
Range
40