參數(shù)資料
型號: CY62147V
廠商: Cypress Semiconductor Corp.
英文描述: 4M (256K x 16) Static RAM
中文描述: 4分(256K × 16)靜態(tài)RAM
文件頁數(shù): 5/9頁
文件大?。?/td> 170K
代理商: CY62147V
CY62147V MoBL
Document #: 38-05050 Rev. *A
Page 5 of 9
Switching Waveforms
Read Cycle No. 1
[12, 13]
Notes:
12. Device is continuously selected. OE, CE = V
IL
.
13. WE is HIGH for read cycle.
14. Address valid prior to or coincident with CE transition LOW.
ADDRESS
DATA OUT
PREVIOUS DATA VALID
DATA VALID
t
RC
t
AA
t
OHA
50%
50%
DATA VALID
t
RC
t
ACE
t
DBE
t
LZBE
t
LZCE
t
PU
DATA OUT
HIGH IMPEDANCE
IMPEDANCE
I
CC
I
SB
t
HZOE
t
HZCE
t
PD
OE
CE
HIGH
V
SUPPLY
CURRENT
Read Cycle No. 2
[13, 14]
t
HZBE
BHE/BLE
t
DOE
t
LZOE
t
HD
t
SD
t
PWE
t
SA
t
HA
t
AW
t
WC
DATA I/O
ADDRESS
CE
WE
OE
t
HZOE
DATA
IN
VALID
NOTE
Write Cycle No. 1 (WE Controlled)
[10, 15, 16]
17
BHE/BLE
t
BW
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