參數(shù)資料
型號: MC145745FW
廠商: MOTOROLA INC
元件分類: 調(diào)制器/解調(diào)器
英文描述: V.21/V.23 Telemeter Modem
中文描述: 1.2 kbps DATA, MODEM, PDSO28
封裝: SOIC-28
文件頁數(shù): 8/16頁
文件大?。?/td> 172K
代理商: MC145745FW
MC145745
8
MOTOROLA
SCP TIMING CHARACTERISTICS
Ref.
No.
Characteristic
Min
Max
Unit
1
SCPEN Active Before Rising Edge of SCPCLK
50
ns
2
SCPCLK Rising Edge Before SCPEN Active
50
ns
3
SCP Rx Setup Time Before SCPCLK Rising Edge
35
ns
4
SCP Rx Hold Time After SCPCLK Rising Edge
20
ns
5
SCPCLK Period
250
ns
6
SCPCLK Pulse Width (Low)
50
ns
7
SCPCLK Pulse Width (High)
50
ns
8
SCP Tx Active Delay Time
0
50
ns
9
SCPCLK Falling Edge to SCP Tx High Impedance
30
ns
10
SCPEN Inactive Before SCPCLK Rising Edge
50
ns
11
SCPCLK Rising Edge Before SCPEN Inactive
50
ns
12
SCPCLK Falling Edge to SCP Tx Valid Data
0
50
ns
Figure 4. Serial Control Port Timing
SCP Rx
R/W
A2
A1
A0
D3
D2
D1
D0
1
2
3
4
5
6
7
8
9
2
1
3
4
5
7
6
11
D3
D2
D1
D0
SCP Tx
9
12
8
10
SCPEN
SCPCLK
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