參數(shù)資料
型號(hào): ADSP-2109
廠商: Analog Devices, Inc.
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection
中文描述: 無電容,NMOS管,150mA的低壓差穩(wěn)壓器的反向電流保護(hù)
文件頁(yè)數(shù): 31/36頁(yè)
文件大?。?/td> 333K
代理商: ADSP-2109
ADSP-2104/ADSP-2109
REV. 0
–31–
TIMNGPARAMETERS (ADSP-2104L/ADSP-2109L)
ME MORY RE AD
Frequency
Dependency
Min
13.824 MHz
Min
Parameter
Max
Max
Unit
Timing Requirement:
t
RDD
RD Low to Data Valid
t
AA
A0–A13, PMS, DMS, BMS to Data Valid
t
RDH
Data Hold from RD High
Switching Characteristic:
t
RP
RD Pulse Width
t
CRD
CLKOUT High to RD Low
t
ASR
A0–A13, PMS, DMS, BMS Setup before RD Low
t
RDA
A0–A13, PMS, DMS, BMS Hold after RD Deasserted
t
RWR
RD High to RD or WR Low
23.2
36.2
0.5t
CK
– 13 + w
0.75t
CK
– 18 + w
ns
ns
ns
0
0
28.2
13.1
8.1
9.1
31.2
0.5t
CK
– 8 + w
0.25t
CK
– 5
0.25t
CK
– 10
0.25t
CK
– 9
0.5t
CK
– 5
ns
ns
ns
ns
ns
28.1
0.25t
CK
+ 10
w = wait states
×
t
CK .
Figure 28. Memory Read
CLKOUT
A0 – A13
D
RD
WR
DMS, PMS
BMS
t
RDH
t
RWR
t
RP
t
ASR
t
CRD
t
AA
t
RDD
t
RDA
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