Cypress CY62167EV18 - Manual (Page 6)

CY62167EV18 MoBL
®
Document #: 38-05447 Rev. *G Page 6 of 13
Switching Waveforms
Figure 4 shows address transition controlled read cycle waveforms. [18, 19]
Figure 4. Read Cycle No. 1
Figure 5 shows OE controlled read cycle waveforms. [19, 20]
Figure 5. Read Cycle No. 2
PREVIOUS DATA VALID DATA VALID
RC
t
AA
t
OHA
t
RC
ADDRESS
DATA OUT
50% 50%
DATA VALID
t
RC
t
ACE
t
DOE
t
LZOE
t
LZCE
t
PU
HIGH IMPEDANCE
t
HZOE
t
PD
t
HZBE
t
LZBE
t
HZCE
t
DBE
OE
CE
1
ADDRESS
CE
2
BHE/BLE
DATA OUT
V
CC
SUPPLY
CURRENT
HIGH
I
CC
I
SB
IMPEDANCE
Notes
18. The device is continuously selected. OE, CE
1
= V
IL
, BHE, BLE or both = V
IL
, and CE
2
= V
IH
.
19. WE is HIGH for read cycle.
20. Address valid before or similar to CE
1
, BHE, BLE transition LOW and CE
2
transition HIGH.
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