參數(shù)資料
型號(hào): MC74ACT257N
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
中文描述: ACT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16
封裝: PLASTIC, DIP-16
文件頁(yè)數(shù): 5/8頁(yè)
文件大?。?/td> 173K
代理商: MC74ACT257N
MC74AC257 MC74ACT257
5-5
FACT DATA
AC CHARACTERISTICS
(For Figures and Waveforms — See Section 3)
Symbol
Parameter
(V)
74AC
74AC
Unit
No.
VCC*
TA = +25
°
C
CL = 50 pF
TA = –40
°
C
to +85
°
C
CL = 50 pF
Fig.
Min
Typ
Max
Min
Max
tPLH
Propagation Delay
In to Zn
Propagation Delay
In to Zn
Propagation Delay
S to Zn
Propagation Delay
S to Zn
3.3
5.0
1.5
1.5
5.0
4.0
8.5
6.0
1.0
1.0
9.0
7.0
ns
3-5
tPHL
3.3
5.0
1.5
1.5
6.0
4.5
8.5
6.0
1.0
1.0
9.0
7.0
ns
3-5
tPLH
3.3
5.0
1.5
1.5
7.0
5.0
10.5
7.5
1.5
1.0
11.5
8.5
ns
3-6
tPHL
3.3
5.0
1.5
1.5
7.5
5.5
10.5
7.5
1.5
1.0
11.5
8.5
ns
3-6
tPZH
Output Enable Time
3.3
5.0
1.5
1.5
6.5
5.0
9.5
7.5
1.0
1.0
10.5
8.5
ns
3-7
tPZL
Output Enable Time
3.3
5.0
1.5
1.5
5.5
5.0
9.0
8.5
1.0
1.0
10.0
9.5
ns
3-8
tPHZ
Output Disable Time
3.3
5.0
1.5
1.5
5.5
5.0
10.0
9.0
1.0
1.0
11.0
10.0
ns
3-7
tPLZ
Output Disable Time
3.3
5.0
1.5
1.5
5.5
5.0
9.0
8.0
1.0
1.0
10.0
9.0
ns
3-8
* Voltage Range 3.3 V is 3.3 V
±
0.3 V.
Voltage Range 5.0 V is 5.0 V
±
0.5 V.
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