Cypress Semiconductor Perform CY62167E MoBL Руководство - Страница 6
Просмотреть онлайн или скачать pdf Руководство для Компьютерное оборудование Cypress Semiconductor Perform CY62167E MoBL. Cypress Semiconductor Perform CY62167E MoBL 13 страниц. 16-mbit (1m x 16 / 2m x 8) static ram
Печатать страницуSwitching Waveforms
Figure 1
shows address transition controlled read cycle waveforms.
ADDRESS
DATA OUT
PREVIOUS DATA VALID
Figure 2
shows OE controlled read cycle waveforms.
ADDRESS
CE
1
CE
2
BHE/BLE
OE
HIGH IMPEDANCE
DATA OUT
t
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 #: 001-15607 Rev. *A
Figure 1. Read Cycle No. 1
t
AA
t
OHA
[19, 20]
Figure 2. Read Cycle No. 2
t
RC
t
ACE
t
DBE
t
LZBE
t
DOE
t
LZOE
t
LZCE
PU
50%
= V
, BHE, BLE or both = V
1
IL
, BHE, BLE transition LOW and CE
1
[18, 19]
t
RC
RC
DATA VALID
, and CE
= V
.
IL
2
IH
transition HIGH.
2
CY62167E MoBL
DATA VALID
t
PD
t
HZCE
t
HZBE
t
HZOE
HIGH
IMPEDANCE
I
CC
50%
I
Page 6 of 12
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