7C1021B-15 데이터 시트보기 (PDF) - Cypress Semiconductor
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7C1021B-15 Datasheet PDF : 10 Pages
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Switching Waveforms (continued)
Write Cycle No. 3 (WE Controlled, OE LOW)
tWC
ADDRESS
CY7C1021B
CE
tSCE
tAW
tSA
tHA
tPWE
WE
tBW
BHE, BLE
DATA I/O
tHZWE
tSD
tHD
tLZWE
Truth Table
CE OE WE BLE BHE
I/O1–I/O8
H X XX
X
High Z
L L HL
L
Data Out
L
H
Data Out
H
L
High Z
L X LL
L
Data In
L
H
Data In
H
L
High Z
L H HX
X
High Z
L X XH
H
High Z
I/O9–I/O16
High Z
Data Out
High Z
Data Out
Data In
High Z
Data In
High Z
High Z
Mode
Power-Down
Read - All bits
Read - Lower bits only
Read - Upper bits only
Write - All bits
Write - Lower bits only
Write - Upper bits only
Selected, Outputs Disabled
Selected, Outputs Disabled
Ordering Information
Speed
(ns)
12
Ordering Code
CY7C1021B-12VC
CY7C1021B-12VXC
CY7C1021B-12ZC
CY7C1021B-12ZXC
CY7C1021B-12VI
CY7C1021B-12VXI
Package
Name
51-85082
51-85087
51-85082
Package Type
44-pin (400-Mil) Molded SOJ
44-pin (400-Mil) Molded SOJ (Pb-Free)
44-pin TSOP Type II
44-pin TSOP Type II (Pb-Free)
44-pin (400-Mil) Molded SOJ
44-pin (400-Mil) Molded SOJ (Pb-Free)
Power
Standby (ISB)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Active (ICC)
Operating
Range
Commercial
Industrial
Document #: 38-05145 Rev. *C
Page 7 of 10
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