M74HC51 STMICROELECTRONICS [STMicroelectronics], M74HC51 Datasheet - Page 4

• Manufacturer Part Number: M74HC51
• Description: DUAL 2 WIDE 2 INPUT AND/OR INVERT GATE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M54/M74HC51
AC ELECTRICAL CHARACTERISTICS (C
(*) C
(Refer to Test Circuit). Average operting current can be obtained by the following equation. I
SWITCHING CHARACTERISTICS TEST CIRCUIT
TEST CIRCUIT I
4/9
Symbol
C
INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST.
t
t
t
t
PD
C
TLH
THL
PLH
PHL
PD
IN
(*)
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
Output Transition
Time
Propagation
Delay Time
Input Capacitance
Power Dissipation
Capacitance
Parameter
CC
(Opr.)
V
(V)
2.0
4.5
6.0
2.0
4.5
6.0
CC
Test Conditions
L
= 50 pF, Input t
Min.
54HC and 74HC
T
A
Typ.
= 25
30
39
13
11
32
8
7
5
o
C
Max.
100
75
15
13
20
17
10
CC
r
(opr) = C
= t
Value
f
-40 to 85
Min.
= 6 ns)
PD
74HC
V
CC
Max.
125
95
19
16
25
21
10
o
f
C
IN
+ I
-55 to 125
CC
Min.
54HC
Max.
110
150
22
19
30
26
10
o
C
Unit
pF
pF
ns
ns