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參數資料
型號: W6690
廠商: WINBOND ELECTRONICS CORP
英文描述: ISDN S/T Interface Controller(ISDN S/T接口控制器)
中文描述: 綜合業務數字網的S / T接口控制器(綜合業務數字網S / T的接口控制器)
文件頁數: 72/76頁
文件大小: 471K
代理商: W6690
Preliminary W6690
- 72 -
PARAMETER
t6
t7
PARAMETER DESCRIPTIONS
NOWS* asserted after IORC*, IOWC* valid
NOWS* deasserted after IORC*, IOWC*
invalid
IORC* asserted to read data valid
IORC* negated to read data invalid
IORC* negated to data bus float
Write data valid before IOWC* asserted
IOWC* negated to write data invalid
A<15:0> valid to CSO* assserted
A<15:0> invalid to CSO* deasserted
CSIN* valid before IORC*, IOWC* asserted
CSIN* invalid after IORC*, IOWC* deasserted
ALE pulse width
Address setup time to ALE
Address hold time from ALE
Address setup time to IORC*, IOWC*
IORC* pulse width
CSIN* setup time to IORC*, IOWC*
CSIN* hold time from IORC*, IOWC*
Data output delay from IORC*
Data float from IORC*
ALE guard time
IORC* recovery time
IOWC* pulse width
IOWC* recovery time
Data setup time to IOWC*
Data hold time from IOWC*
Address setup time to DS*
Address hold time from DS*
CSIN* setup time to DS*
CSIN* hold time from DS*
DS* read pulse width
DS* read recovery time
RW* setup time to DS* read
MIN.
MAX.
20
20
REMARKS
t8
t9
t10
t11
t12
t13
t14
t15
t16
t17
t18
t19
t20
t21
t22
t23
t24
t25
t26
t27
t28
t29
t30
t31
t32
t33
t34
t35
t36
t37
t38
50
0
30
0
0
20
20
10
0
50
15
10
0
110
0
0
50
25
15
70
60
70
35
10
25
10
10
10
110
70
0
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