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TC74VHCT540AFK Arkusz danych(PDF) 4 Page - Toshiba Semiconductor

Numer części TC74VHCT540AFK
Szczegółowy opis  Octal Bus Buffer
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Producent  TOSHIBA [Toshiba Semiconductor]
Strona internetowa  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TC74VHCT540AFK Arkusz danych(HTML) 4 Page - Toshiba Semiconductor

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TC74VHCT540,541AF/AFT/AFK
2007-10-01
4
Electrical Characteristics
DC Characteristics
Test Condition
Ta = 25°C
Ta =
−40 to 85°C
Characteristics
Symbol
VCC (V)
Min
Typ.
Max
Min
Max
Unit
High-level input
voltage
VIH
4.5 to
5.5
2.0
2.0
V
Low-level input
voltage
VIL
4.5 to
5.5
0.8
0.8
V
IOH = −50 μA
4.5
4.40
4.50
4.40
High-level output
voltage
VOH
VIN
= VIH or VIL IOH = −8 mA
4.5
3.94
3.80
V
IOL = 50 μA
4.5
0.0
0.10
0.10
Low-level output
voltage
VOL
VIN
= VIH or VIL IOL = 8 mA
4.5
0.36
0.44
V
3-state output
off-state current
IOZ
VIN = VIH or VIL
VOUT = VCC or GND
5.5
±0.25
±2.50
μA
Input leakage
current
IIN
VIN = 5.5 V or GND
0 to 5.5
±0.1
±1.0
μA
ICC
VIN = VCC or GND
5.5
4.0
40.0
μA
Quiescent supply
current
ICCT
Per input: VIN = 3.4 V
Other input: VCC or GND
5.5
1.35
1.50
mA
Output leakage
current
IOPD
VOUT = 5.5 V
0
+0.5
+5.0
μA
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
5.4
7.4
1.0
8.5
Propagation delay
time
(TC74VHCT540A)
tpLH
tpHL
5.0 ± 0.5
50
5.9
8.4
1.0
9.5
ns
15
5.0
6.9
1.0
8.0
Propagation delay
time
(TC74VHCT541A)
tpLH
tpHL
5.0 ± 0.5
50
5.5
7.9
1.0
9.0
ns
15
8.3
11.3
1.0
13.0
3-state output enable
time
tpZL
tpZH
RL = 1 kΩ
5.0 ± 0.5
50
8.8
12.3
1.0
14.0
ns
3-state output disable
time
tpLZ
tpHZ
RL = 1 kΩ
5.0 ± 0.5
50
9.4
11.9
1.0
13.5
ns
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
9
pF
Power dissipation
capacitance
CPD
(Note 2)
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)


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