Cypress Semiconductor CY62157ESL Технический паспорт - Страница 7
Просмотреть онлайн или скачать pdf Технический паспорт для Компьютерное оборудование Cypress Semiconductor CY62157ESL. Cypress Semiconductor CY62157ESL 13 страниц. Mobl 8-mbit (512k x 16) static ram
Печатать страницуSwitching Waveforms
ADDRESS
DATA OUT
PREVIOUS DATA VALID
ADDRESS
CE
OE
BHE/BLE
HIGH IMPEDANCE
DATA OUT
V
CC
SUPPLY
CURRENT
Notes
14. The device is continuously selected. OE, CE = V
15. WE is HIGH for read cycle.
16. Address valid before or similar to CE, BHE, BLE transition LOW.
Document #: 001-43141 Rev. **
Figure 2. Read Cycle No.1: Address Transition Controlled.
t
AA
t
OHA
Figure 3. Read Cycle No. 2: OE Controlled
t
ACE
t
DOE
t
LZOE
t
DBE
t
LZBE
t
LZCE
t
PU
50%
, BHE, BLE, or both = V
IL
t
RC
RC
[15, 16]
t
RC
DATA VALID
.
IL
CY62157ESL MoBL
[14, 15]
DATA VALID
t
PD
t
HZCE
t
HZOE
t
HZBE
HIGH
IMPEDANCE
50%
Page 7 of 12
®
I
CC
I
SB
[+] Feedback
[+] Feedback