PRELIMINARY
Switching Waveforms
(continued)
Write Cycle No.3 (WE Controlled, OE LOW)
[13,14]
t
WC
ADDRESS
t
SCE
CE
1
CY62128
CE
2
t
SCE
t
AW
t
SA
WE
t
SD
DATAI/O
NOTE 15
t
HZWE
DATA VALID
t
LZWE
62128-9
t
HA
t
PWE
t
HD
Truth Table
CE
1
H
X
L
L
L
CE
2
X
L
H
H
H
OE
X
X
L
X
H
WE
X
X
H
L
H
I/O
0
– I/O
7
High Z
High Z
Data Out
Data In
High Z
Mode
Power-Down
Power-Down
Read
Write
Selected, Outputs Disabled
Power
Standby (I
SB
)
Standby (I
SB
)
Active (I
CC
)
Active (I
CC
)
Active (I
CC
)
Ordering Information
Speed
(ns)
55
Ordering Code
CY62128–55VC
CY62128–55SC
CY62128−55ZC
70
CY62128–70VC
CY62128–70SC
CY62128−70ZC
CY62128L−70SC
CY62128L−70ZC
CY62128LL−70SC
CY62128LL−70ZC
Shaded area contains advanced information.
Package
Name
V33
S34
Z32
V33
S34
Z32
S34
Z32
S34
Z32
Package Type
32-Lead (400-Mil) Molded SOJ
32-Lead (450-Mil) Molded SOIC
32-Lead TSOP TypeI
32-Lead (400-Mil) Molded SOJ
32-Lead (450-Mil) Molded SOIC
32-Lead TSOP Type I
32-Lead (450-Mil) Molded SOIC
32-Lead TSOP Type I
32-Lead (450-Mil) Molded SOIC
32-Lead TSOP Type I
Operating
Range
Commercial
Commercial
Document #: 38–00524
6
CYPRESS [ CYPRESS SEMICONDUCTOR ]
