
CY7C1386D, CY7C1386F
CY7C1387D, CY7C1387F
Document Number: 38-05545 Rev. *H Page 27 of 36
Figure 7. Read/Write Cycle Timing
[32, 33, 34]
Switching Waveforms (continued)
t
CYC
t
CL
CLK
ADSP
t
ADH
t
ADS
ADDRESS
t
CH
OE
ADSC
CE
t
AH
t
AS
A2
t
CEH
t
CES
Data Out (Q)
High-Z
ADV
Single WRITE
D(A3)
A4 A5 A6
D(A5) D(A6)
Data In (D)
BURST READ
Back-to-Back READs
High-Z
Q(A2)Q(A1)
Q(A4)
t
WEH
t
WES
Q(A4+3)
t
OEHZ
t
DH
t
DS
t
OELZ
t
CLZ
t
CO
Back-to-Back
WRITEs
A1
BWE, BW X
A3
DON’T CARE
UNDEFINED
Notes
32.
Full width write can be initiated by either GW
LOW, or by GW HIGH, BWE LOW, and BW
X
LOW.
33. The data bus (Q) remains in high Z following a Write cycle, unless a new read access is initiated by ADSP
or ADSC.
34. GW
is HIGH.
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