Rainbow Electronics DS1254 - Manual (Page 11)

DS1254
11 of 17
Figure 6. MEMORY WRITE CYCLE TIMING, CHIP-ENABLE CONTROLLED
(Notes 5, 7, 8, 10, 11, 12, and 13)
Figure 7. READ CYCLE TO PHANTOM CLOCK
Figure 8. WRITE CYCLE TO PHANTOM CLOCK
t
WC
t
AH2
t
AW
t
DS
t
DH2
t
COE
t
ODW
t
WP
ADDRESS
CE
WE
DQ0–DQ7
DATA IN
STABLE
t
RC
CE
OE
DQ0
t
CO
t
OE
t
COE
t
COE
t
OD
t
OD
OUTPUT
DATA VALID
t
RR
WE = V
IH
t
WC
t
WR
t
DS
t
DH1
t
WP
WE
CE
DQ0
DATA IN
STABLE
t
WP
OE = V
IH
t
DH2
T
AH2