Cypress CY7C1380C - Manual (Page 28)

CY7C1380C
CY7C1382C
Document #: 38-05237 Rev. *D Page 28 of 36
Switching Waveforms
Read Cycle Timing [21]
Notes:
21. On this diagram, when CE is LOW: CE
1
is LOW, CE
2
is HIGH and CE
3
is LOW. When CE is HIGH: CE
1
is HIGH or CE
2
is LOW or CE
3
is HIGH.
22. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW
X
LOW.
tCYC
t
CL
CLK
ADSP
t
ADH
t
ADS
ADDRESS
t
CH
OE
ADSC
CE
tAH tAS
A1
tCEH tCES
GW, BWE,
BWx
Data Out (Q) High-Z
tCLZ
tDOH
tCO
ADV
tOEHZ
tCO
Single READ BURST READ
tOEV
tOELZ tCHZ
ADV
suspends
burst.
Burst wraps around
to its initial state
tADVH tADVS
tWEH tWES
tADH tADS
Q(A2) Q(A2 + 1) Q(A2 + 2) Q(A1) Q(A2) Q(A2 + 1) Q(A2 + 3)
A2 A3
Deselect
cycle
Burst continued with
new base address
DON’T CARE UNDEFINED
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