tc74vhc139f TOSHIBA Semiconductor CORPORATION, tc74vhc139f Datasheet - Page 4

• Manufacturer Part Number: tc74vhc139f
• Description: Dual 2-to-4 Line Decoder
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Input Equivalent Circuit
INPUT
AC Characteristics
Propagation delay
time
(A, B-Y)
Propagation delay
time
( G -Y)
Input capacitance
Power dissipation
capacitance
Note: C
Characteristics
current consumption without load.
Average operating current can be obtained by the equation:
PD
I
is defined as the value of the internal equivalent capacitance which is calculated from the operating
CC (opr)
= C
PD
Symbol
(input: t
C
t
t
t
t
C
pLH
pHL
pLH
pHL
·V
PD
IN
CC
·f
IN
r
+ I
= t
CC
f
⎯
⎯
= 3 ns)
/2 (per decoder)
Test Condition
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
V
⎯
CC
(V)
4
C
L
15
50
15
50
15
50
15
50
(Note)
(pF)
Min
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Ta = 25°C
Typ.
7.2
9.7
5.0
6.5
6.4
8.9
4.4
5.9
26
4
TC74VHC139F/FN/FT
Max
11.0
14.5
12.7
7.2
9.2
9.2
6.3
8.3
10
⎯
Ta = − 40 to 85°C
Min
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
⎯
⎯
2007-10-01
13.0
16.5
10.5
11.0
14.5
Max
8.5
7.5
9.5
10
⎯
Unit
pF
pF
ns
ns