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TC74VHC244F Folha de dados(PDF) 5 Page - Toshiba Semiconductor

Nome de Peças TC74VHC244F
Descrição Electrónicos  Octal Bus Buffer
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Fabricante Electrônico  TOSHIBA [Toshiba Semiconductor]
Página de início  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TC74VHC244F Folha de dados(HTML) 5 Page - Toshiba Semiconductor

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TC74VHC240,244F/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
5.3
7.5
1.0
9.0
3.3
± 0.3
50
7.8
11.0
1.0
12.5
15
3.6
5.5
1.0
6.5
Propagation delay
time
(TC74VHC240)
tpLH
tpHL
5.0
± 0.5
50
5.1
7.5
1.0
8.5
ns
15
5.8
8.4
1.0
10.0
3.3
± 0.3
50
8.3
11.9
1.0
13.5
15
3.9
5.5
1.0
6.5
Propagation delay
time
(TC74VHC244)
tpLH
tpHL
5.0
± 0.5
50
5.4
7.5
1.0
8.5
ns
15
6.6
10.6
1.0
12.5
3.3
± 0.3
50
9.1
14.1
1.0
16.0
15
4.7
7.3
1.0
8.5
3-state output enable
time
tpZL
tpZH
RL = 1 kΩ
5.0
± 0.5
50
6.2
9.3
1.0
10.5
ns
3.3
± 0.3
50
10.3
14.0
1.0
16.0
3-state output disable
time
tpLZ
tpHZ
RL = 1 kΩ
5.0
± 0.5
50
6.7
9.2
1.0
10.5
ns
3.3
± 0.3
50
1.5
1.5
Output to output skew
tosLH
tosHL
(Note 1)
5.0
± 0.5
50
1.0
1.0
ns
Input capacitance
CIN
4
10
10
pF
Output capacitance
COUT
6
pF
TC74VHC240
17
Power dissipation
capacitance (Note 2)
CPD
TC74VHC244
19
pF
Note 1: Parameter guaranteed by design.
tosLH = |tpLHm − tpLHn|, tosHL = |tpHLm − tpHLn|
Note 2: 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/8 (per bit)
Noise Characteristics (input: tr = tf = 3 ns) (Note)
Test Condition
Ta
= 25°C
Characteristics
Symbol
VCC (V)
Typ.
Limit
Unit
Quiet output maximum dynamic VOL
VOLP
CL = 50 pF
5.0
0.5
(0.6)
0.8
(0.9)
V
Quiet output minimum dynamic VOL
VOLV
CL = 50 pF
5.0
−0.5
(
−0.6)
−0.8
(
−0.9)
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
Note:
The value in ( ) only applies to JEDEC SOP (FW) devices.


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