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コンピュータ・ハードウェア Cypress CY62167EV18のPDF 仕様書をオンラインで閲覧またはダウンロードできます。Cypress CY62167EV18 14 ページ。 Mobl 16 mbit (1m x 16) static ram
ページを印刷するSwitching Waveforms
Figure 4
shows address transition controlled read cycle waveforms.
ADDRESS
DATA OUT
PREVIOUS DATA VALID
Figure 5
shows OE controlled read cycle waveforms.
ADDRESS
CE
1
CE
2
BHE/BLE
OE
HIGH IMPEDANCE
DATA OUT
V
CC
SUPPLY
CURRENT
Notes
18. The device is continuously selected. OE, CE
19. WE is HIGH for read cycle.
20. Address valid before or similar to CE
Document #: 38-05447 Rev. *G
Figure 4. Read Cycle No. 1
t
AA
t
OHA
[19, 20]
Figure 5. Read Cycle No. 2
t
ACE
t
DBE
t
LZBE
t
DOE
t
LZOE
t
LZCE
t
PU
50%
= V
, BHE, BLE or both = V
1
IL
, BHE, BLE transition LOW and CE
1
[18, 19]
t
RC
RC
t
RC
DATA VALID
, and CE
= V
.
IL
2
IH
transition HIGH.
2
CY62167EV18 MoBL
DATA VALID
t
PD
t
HZCE
t
HZBE
t
HZOE
HIGH
IMPEDANCE
50%
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I
CC
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SB
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