NXP Semiconductors
74HC273; 74HCT273
Octal D-type flip-flop with reset; positive-edge trigger
Table 7.
Dynamic characteristics
…continued
GND (ground = 0 V); C
L
= 50 pF unless otherwise specified; for test circuit, see
Figure 10
Symbol Parameter
t
PHL
HIGH to LOW
propagation
delay
Conditions
Min
MR to Qn; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 5.0 V; C
L
= 15 pF
V
CC
= 6.0 V
t
t
transition time
Qn output; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
t
W
pulse width
CP input HIGH or LOW;
see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
MR input LOW;
see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
t
rec
recovery time
MR to CP; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
t
su
set-up time
Dn to CP; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
t
h
hold time
Dn to CP; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
f
max
maximum
frequency
CP input; see
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 5.0 V; C
L
= 15 pF
V
CC
= 6.0 V
C
PD
power
dissipation
capacitance
per package;
V
I
= GND to V
CC
25
C
Typ
44
16
15
14
19
7
6
Max
150
30
-
26
75
15
13
40 C
to +85
C 40 C
to +125
C
Unit
Min
-
-
-
-
-
-
-
Max
185
37
-
31
95
19
15
Min
-
-
-
-
-
-
-
Max
225
45
-
38
110
22
19
ns
ns
ns
ns
ns
ns
ns
-
-
-
-
-
-
-
80
16
14
14
5
4
-
-
-
100
20
17
-
-
-
120
24
20
-
-
-
ns
ns
ns
60
12
10
50
10
9
60
12
10
3
3
3
6
30
-
35
-
17
6
5
6
2
2
11
4
3
6
2
2
20.6
103
66
122
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
75
15
13
65
13
11
75
15
13
3
3
3
4.8
24
-
28
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
90
18
15
75
15
13
90
18
15
3
3
3
4
20
-
24
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
MHz
pF
74HC_HCT273
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© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 4 — 10 June 2013
8 of 21
PHILIPS [ NXP SEMICONDUCTORS ]
