參數(shù)資料
型號(hào): TDA7503
廠商: STMICROELECTRONICS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: 14 X 14 MM, 1.40 MM HEIGHT, TQFP-100
文件頁數(shù): 13/30頁
文件大?。?/td> 297K
代理商: TDA7503
TDA7503
20/30
EXTERNAL MEMORY INTERFACE (EMI) SRAM MODE
Figure 16. External Memory Interface SRAM Read Cycle
Figure 17. External Memory Interface SRAM Write Cycle
Characteristics
42MHz
Unit
Min.
Max.
Address Valid and CS Assertion Pulse Width
89
ns
Address Valid to RD or WR Assertion
23
ns
RD or WR Assertion Pulse Width
45
ns
RD or WR Negation to RD or WR Assertion
39
ns
RD or WR Negation to Address not Valid
5
ns
Address Valid to Input Data Valid
72
ns
RD Assertion to Input Data Valid
35
ns
RD Negation to Data Not Valid (Data Hold Time)
0
ns
Address Valid to WR Negation
73
ns
Data Setup Time to WR Negation
32
ns
Data Hold Time from WR Negation
5
ns
WR Assertion to Data Valid
18
ns
WR Negation to Data High-Z (Note 1)
23
ns
WR Assertion to Data Active
5
ns
ALE
DRD
SRA_D
(7:0)
SRA_D
(13:8)
D02AU1381
ADD (7:0)
ADD (13:8)
DATA
ALE
DWR
SRA
(7:0)
SRA
(13:8)
D02AU1382
ADD (7:0)
ADD (13:8)
DATA
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