Cypress CY7C0430BV - Manual (Page 15)

CY7C0430BV
CY7C0430CV
Document #: 38-06027 Rev. *B Page 15 of 37
Read-to-Write-to-Read (OE Controlled) [19, 20, 21, 22]
Read with Address Counter Advance [23, 24]
Notes:
23. CE
0
= OE = LB = UB = V
IL
; CE
1
= R/W = CNTRST = MRST = MKLD = MKRD = CNTRD = V
IH
.
24. The “Internal Address” is equal to the “External Address” when CNTLD = V
IL
.
Switching Waveforms (continued)
t
CYC2
t
CL2
t
CH2
t
HC
t
SC
t
HW
t
SW
t
HA
t
SA
A
n
A
n+1
A
n+2
A
n+3
A
n+4
A
n+5
t
HW
t
SW
t
SD
t
HD
D
n+2
t
CD2
t
OHZ
Read Read Write
D
n+3
Q
n
CLK
CE
R/W
ADDRESS
DATA
IN
DATA
OUT
OE
t
CKLZ
t
CD2
Q
n+4
Counter Hold
Read with Counter
t
SA
t
HA
t
SCLD
t
HCLD
t
SCINC t
HCINC
t
CH2
t
CL2
t
CYC2
Q
x–1
Q
x
Q
n
Q
n+1
Q
n+2
Q
n+3
t
DC
t
CD2
Read with Counter
Read
External
Address
CLK
ADDRESS
CNTLD
DATA
OUT
CNTINC
A
n
[+] Feedback