CY7C1464AV33 데이터 시트보기 (PDF) - Cypress Semiconductor
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CY7C1464AV33
Cypress Semiconductor
CY7C1464AV33 Datasheet PDF : 27 Pages
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CY7C1460AV33
CY7C1462AV33
CY7C1464AV33
Truth Table[1, 2, 3, 4, 5, 6, 7] (continued)
Operation
Address
Used CE ZZ ADV/LD WE
Write Cycle
(Begin Burst)
External L
L
L
L
Write Cycle
(Continue Burst)
Next
X
L
H
X
NOP/WRITE ABORT None
L
L
L
L
(Begin Burst)
WRITE ABORT
(Continue Burst)
Next
X
L
H
X
IGNORE CLOCK
Current X
L
X
X
EDGE
(Stall)
SLEEP MODE
None
XH
X
X
Partial Write Cycle Description[1, 2, 3, 8]
Function (CY7C1460AV33)
WE
Read
H
Write – No bytes written
L
Write Byte a – (DQa and DQPa)
L
Write Byte b – (DQb and DQPb)
L
Write Bytes b, a
L
Write Byte c – (DQc and DQPc)
L
Write Bytes c, a
L
Write Bytes c, b
L
Write Bytes c, b, a
L
Write Byte d – (DQd and DQPd)
L
Write Bytes d, a
L
Write Bytes d, b
L
Write Bytes d, b, a
L
Write Bytes d, c
L
Write Bytes d, c, a
L
Write Bytes d, c, b
L
Write All Bytes
L
Function (CY7C1462AV33)[2,8]
Read
Write – No Bytes Written
Write Byte a – (DQa and DQPa)
Write Byte b – (DQb and DQPb)
Write Both Bytes
BWx OE
L
X
L
X
H
X
H
X
X
X
X
X
BWd
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
WE
H
L
L
L
L
CEN
L
L
L
L
H
CLK
L-H
L-H
L-H
L-H
L-H
X
X
DQ
Data In (D)
Data In (D)
Tri-State
Tri-State
-
Tri-State
BWc
X
H
H
H
H
L
L
LL
L
H
H
H
H
L
L
L
L
BWb
X
H
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
BWb
x
H
H
L
L
BWa
X
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
BWa
x
H
L
H
L
Read
Function (CY7C1464AV33)[2,8]
WE
BWx
H
x
Write – No Bytes Written
L
H
Write Byte X − (DQx and DQPx)
Write All Bytes
L
L
L
All BW = L
Note:
8. Table only lists a partial listing of the byte write combinations. Any combination of BW[a:d] is valid. Appropriate write will be done based on which byte write is active.
Document #: 38-05353 Rev. *D
Page 9 of 27
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