M54HC139 Datasheet, PDF (4/9 Pages) STMicroelectronics – M54HC138F1R M74HC138M1R M74HC138B1R M74HC138C1R

M54/M74HC139
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC
(V)
TA = 25 ^oC
54HC and 74HC
Value
-40 to 85 ^oC -55 to 125 ^oC _Unit
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
t_TLH Output Transition 2.0
t_THL Time
4.5
30 75
8
15
95
110
19
22
ns
6.0
7
13
16
19
t_PLH Propagation
2.0
t_PHL Delay Time
4.5
(A, B - Y)
6.0
45 130
165
195
15 26
33
39
ns
13 22
28
33
tPLH Propagation
2.0
t_PHL Delay Time
4.5
(G - Y)
6.0
39 110
140
165
13 22
28
33
ns
11 19
24
28
CIN Input Capacitance
5
10
10
10 pF
CPD (*) Power Dissipation
46
Capacitance
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC
SWITCHING CHARACTERISTICS TEST CIR-
CUIT
TEST CIRCUIT I_CC (Opr.)
INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF
SWITCHING CHARACTERISTICSTEST.
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