CY7C1020BN
Document #: 001-06443 Rev. ** Page 6 of 8
Write Cycle No. 3 (WE Controlled, OE LOW)
Truth Table
CE OE WE BLE BHE I/O
1
–I/O
8
I/O
9
–I/O
16
Mode Power
H X X X X High Z High Z Power-Down Standby (I
SB
)
L L H L L Data Out Data Out Read – All bits Active (I
CC
)
L H Data Out High Z Read – Lower bits only Active (I
CC
)
H L High Z Data Out Read – Upper bits only Active (I
CC
)
L X L L L Data In Data In Write – All bits Active (I
CC
)
L H Data In High Z Write – Lower bits only Active (I
CC
)
H L High Z Data In Write – Upper bits only Active (I
CC
)
L H H X X High Z High Z Selected, Outputs Disabled Active (I
CC
)
L X X H H High Z High Z Selected, Outputs Disabled Active (I
CC
)
Ordering Information
Speed
(ns) Ordering Code
Package
Diagram Package Type
Operating
Range
12 CY7C1020BN-12VC 51-85082 44-Lead (400-Mil) Molded SOJ Commercial
CY7C1020BN-12VXC 51-85082 44-Lead (400-Mil) Molded SOJ (Pb-free) Commercial
CY7C1020BN-12ZC 51-85087 44-pin TSOP Type II Commercial
CY7C1020BN-12ZXC 51-85087 44-pin TSOP Type II (Pb-free) Commercial
15 CY7C1020BN-15ZC 51-85087 44-pin TSOP Type II Commercial
CY7C1020BN-15ZXC 51-85087 44-pin TSOP Type II (Pb-free)
Commercial
Please contact local sales representative regarding availability of these parts.
Switching Waveforms (continued)
t
HD
t
SD
t
SCE
t
HA
t
AW
t
PWE
t
WC
t
BW
DATA I/O
ADDRESS
CE
WE
BHE, BLE
t
SA
t
LZWE
t
HZWE
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