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TC74VHC257FT Folha de dados(PDF) 5 Page - Toshiba Semiconductor

Nome de Peças TC74VHC257FT
Descrição Electrónicos  Quad 2-Channel Multiplexer (3-state)
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Fabricante Electrônico  TOSHIBA [Toshiba Semiconductor]
Página de início  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TC74VHC257FT Folha de dados(HTML) 5 Page - Toshiba Semiconductor

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TC74VHC257F/FN/FT/FK
2007-10-01
5
AC Characteristics (input: tr = tf = 3 ns)
Test Condition
Ta = 25°C
Ta = −40 to
85°C
Characteristics
Symbol
VCC (V)
CL (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)
tpLH
tpHL
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)
tpLH
tpHL
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
tpZL
tpZH
RL = 1 kΩ
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
tpLZ
tpHZ
RL = 1 kΩ
5.0 ± 0.5
50
5.7
7.9
1.0
9.0
ns
Input capacitance
CIN
4
10
10
pF
Onput capacitance
COUT
6
pF
Power dissipation
capacitance
CPD
(Note)
23
pF
Note: CPD 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:
ICC (opr) = CPD·VCC·fIN + ICC/4 (per bit)
Noise Characteristics (input: tr = tf = 3 ns)
Test Condition
Ta = 25°C
Characteristics
Symbol
VCC (V)
Typ.
Max
Unit
Quiet output maximum dynamic VOL
VOLP
CL = 50 pF
5.0
0.3
0.8
V
Quiet output minimum dynamic VOL
VOLV
CL = 50 pF
5.0
−0.3
−0.8
V
Minimum high level dynamic input voltage
VIHD
CL = 50 pF
5.0
3.5
V
Maximum low level dynamic input voltage
VILD
CL = 50 pF
5.0
1.5
V
Input Equivalent Circuit
INPUT


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