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參數(shù)資料
| 型號： | TC7MH257FK |
| 廠商： | Toshiba Corporation |
| 英文描述： | Quad 2-Channel Multiplexer (3-State) |
| 中文描述： | 四2通道多路復用器（3態(tài)） |
| 文件頁數(shù)： | 5/7頁 |
| 文件大小： | 195K |
| 代理商： | TC7MH257FK |
TC7MH257FK
2007-10-19
5
AC Characteristics
(Input: t
r
=
t
f
=
3 ns)
Ta
=
25°C
Ta
=
40~85°C
Characteristics
Symbol
Test Condition
V
CC
(V)
C
L
(pF)
Min
Typ.
Max
Min
Max
Unit
15
5.8
9.3
1.0
11.0
3.3
±
0.3
50
8.3
12.8
1.0
14.5
15
3.6
5.9
1.0
7.0
Propagation delay time
(A, B-Y)
t
pLH
t
pHL
5.0
±
0.5
50
5.1
7.9
1.0
9.0
ns
15
7.0
11.0
1.0
13.0
3.3
±
0.3
50
9.5
14.5
1.0
16.5
15
4.0
6.8
1.0
8.0
Propagation delay time
(SELECT-Y)
t
pLH
t
pHL
5.0
±
0.5
50
5.5
8.8
1.0
10.0
ns
15
6.7
10.5
1.0
12.5
3.3
±
0.3
50
9.2
14.0
1.0
16.0
15
3.6
6.8
1.0
8.0
3-state output enable time
t
pZL
t
pZH
R
L
=
1 k
Ω
5.0
±
0.5
50
5.1
8.8
1.0
10.0
ns
3.3
±
0.3
50
8.6
12.0
1.0
13.5
3-state output disable time
t
pLZ
t
pHZ
R
L
=
1 k
Ω
5.0
±
0.5
50
5.7
7.9
1.0
9.0
ns
Input capacitance
C
IN
4
10
10
pF
Output capacitance
C
OUT
6
pF
Power dissipation
capacitance
C
PD
(Note)
23
pF
Note: C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
I
CC (opr)
=
C
PD
V
CC
f
IN
+
I
CC
/4 (per bit)
Noise Characteristics
(Input: t
r
=
t
f
=
3 ns)
Ta
=
25°C
Characteristics
Symbol
Test Condition
V
CC
(V)
Typ.
Limit
Unit
Quiet output maximum dynamic V
OL
V
OLP
C
L
=
50 pF
5.0
0.3
0.8
V
Quiet output minimum dynamic V
OL
V
OLV
C
L
=
50 pF
5.0
0.3
0.8
V
Minimum high level dynamic input voltage V
IH
V
IHD
C
L
=
50 pF
5.0
3.5
V
Maximum low level dynamic input voltage V
IL
V
ILD
C
L
=
50 pF
5.0
1.5
V
Input Equivalent Circuit
Input
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