參數(shù)資料
型號(hào): MC74ACT257MEL
廠商: ON SEMICONDUCTOR
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, PDSO16
封裝: PLASTIC, EIAJ-16
文件頁(yè)數(shù): 8/12頁(yè)
文件大?。?/td> 191K
代理商: MC74ACT257MEL
MC74AC257, MC74ACT257
http://onsemi.com
8
AC CHARACTERISTICS
(For Figures and Waveforms
See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
Symbol
Parameter
V
CC
*
(V)
74ACT
74ACT
Unit
Fig.
No.
T
A
= +25
°
C
C
L
= 50 pF
T
A
=
40
°
C
to +85
°
C
C
L
= 50 pF
Min
Typ
Max
Min
Max
t
PLH
Propagation Delay
I
n
to Z
n
Propagation Delay
I
n
to Z
n
Propagation Delay
S to Z
n
Propagation Delay
S to Z
n
Output Enable Time
5.0
1.5
5.0
7.0
1.0
7.5
ns
3
6
t
PHL
5.0
2.0
6.0
7.5
1.5
8.5
ns
3
6
t
PLH
5.0
2.0
7.0
9.5
1.5
10.5
ns
3
6
t
PHL
5.0
2.5
7.0
10.5
2.0
11.5
ns
3
6
t
PZH
5.0
2.0
6.0
8.0
1.5
9.0
ns
3
7
t
PZL
Output Enable Time
5.0
2.0
6.0
8.0
1.5
9.0
ns
3
8
t
PHZ
Output Disable Time
5.0
2.5
6.5
9.0
1.5
10.0
ns
3
7
t
PLZ
Output Disable Time
5.0
2.0
6.0
7.5
1.5
8.5
ns
3
8
*Voltage Range 5.0 V is 5.0 V
±
0.5 V.
CAPACITANCE
Symbol
Parameter
Value
Typ
Unit
Test Conditions
C
IN
Input Capacitance
4.5
pF
V
CC
= 5.0 V
C
PD
Power Dissipation Capacitance
50
pF
V
CC
= 5.0 V
MARKING DIAGRAMS
A
WL, L
YY, Y
WW, W = Work Week
= Assembly Location
= Wafer Lot
= Year
AC257
AWLYWW
MC74AC257N
AWLYYWW
AC
257
ALYW
ACT257
AWLYWW
ACT
257
ALYW
MC74ACT257N
AWLYYWW
DIP
16
SO
16
TSSOP
16
EIAJ
16
74AC257
ALYW
74ACT257
ALYW
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