Switching waveforms, Continued) – Cypress CY7C1446AV33 User Manual
Page 22
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CY7C1440AV33
CY7C1442AV33
CY7C1446AV33
Document #: 38-05383 Rev. *E
Page 22 of 31
Write Cycle Timing
[26, 27]
Note:
27. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW
X
LOW.
Switching Waveforms
(continued)
tCYC
tCL
CLK
ADSP
tADH
tADS
ADDRESS
tCH
OE
ADSC
CE
tAH
tAS
A1
tCEH
tCES
BWE,
BW
X
Data Out (Q)
High-Z
ADV
BURST READ
BURST WRITE
D(A2)
D(A2 + 1)
D(A2 + 1)
D(A1)
D(A3)
D(A3 + 1)
D(A3 + 2)
D(A2 + 3)
A2
A3
Data In (D)
Extended BURST WRITE
D(A2 + 2)
Single WRITE
tADH
tADS
tADH
tADS
t
OEHZ
t
ADVH
t
ADVS
tWEH
tWES
tDH
tDS
GW
tWEH
tWES
Byte write signals are
ignored for first cycle when
ADSP initiates burst
ADSC extends burst
ADV suspends burst
DON’T CARE
UNDEFINED
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