M54/M74HC192/193
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Test Conditions
Value
TA = 25 oC
54HC and 74HC
-40 to 85 oC -55 to 125 oC
Symbol
Parameter
Unit
VCC
(V)
74HC
54HC
Min. Typ. Max. Min. Max. Min. Max.
tTLH
tTHL
Output Transition
Time
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
30
8
75
15
95
19
110
22
ns
ns
7
13
16
19
tPLH
tPHL
Propagation
Delay Time
(UP, DOWN - Q)
65
20
16
40
13
11
40
13
11
85
25
20
110
30
25
110
31
25
80
25
20
120
34
28
110
30
25
100
30
25
120
35
29
120
35
29
12
48
55
190
38
240
48
285
57
32
41
48
tPLH
tPHL
Propagation
Delay Time
(UP - CARRY)
130
26
165
33
195
39
ns
22
28
33
tPLH
tPHL
Propagation Delay 2.0
Time (DOWN -
BORROW)
6.0
130
26
165
33
195
39
ns
4.5
22
28
33
tPLH
tPHL
Propagation
Delay Time
(LOAD - Q)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
220
44
275
55
330
66
ns
37
47
56
tPLH
tPHL
Propagation
Delay Time
(LOAD - CARRY)
250
50
315
63
375
75
ns
43
54
64
tPLH
tPHL
Propagation
Delay Time
(LOAD - BORROW)
250
50
315
63
375
75
ns
43
54
64
tPLH
tPHL
Propagation
Delay Time
(DATA - Q)
190
38
240
48
285
57
ns
32
41
48
tPLH
tPHL
Propagation
Delay Time
(DATA - CARRY)
250
50
315
63
375
75
ns
43
54
64
tPLH
tPHL
Propagation
Delay Time
(DATA - BORROW)
250
50
315
63
375
75
ns
43
54
64
tPHL
tPLH
tPHL
fMAX
Propagation
Delay Time
(CLEAR - Q)
225
45
280
56
340
68
ns
38
48
58
Propagation
Delay Time
(CLEAR - CARRY)
250
50
315
63
375
75
ns
43
54
64
Propagation Delay 2.0
Time (CLEAR -
BORROW)
6.0
250
50
315
63
375
75
ns
4.5
43
54
64
Maximum Clock
Frequency
2.0
4.5
6.0
5
4
3.4
17
20
MHz
25
30
20
24
8/15
STMICROELECTRONICS [ ST ]
