參數(shù)資料
型號(hào): TDA7500
廠商: STMICROELECTRONICS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: TQFP-100
文件頁數(shù): 18/40頁
文件大?。?/td> 391K
代理商: TDA7500
25/40
TDA7500
EXTERNAL MEMORY INTERFACE (EMI) SRAM MODE
Figure 12. External Memory Interface SRAM Read Cycle.
Figure 13. External Memory Interface SRAM Write Cycle.
Characteristics
40MHz
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
add. [7:0]
data
add. [13:8]
SRA_D
[7:0]
SRA_D
[13:8]
ALE
DRD
add. [7:0]
data
add. [13:8]
SRA
[7:0]
SRA
[13:8]
ALE
DWR
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