74HC74D-T Datasheet, PDF (10/22 Pages) NXP Semiconductors – Dual D-type flip-flop with set and reset; positive-edge trigger

Philips Semiconductors
Dual D-type flip-flop with set and reset;
positive-edge trigger
Product specification
74HC74; 74HCT74
AC CHARACTERISTICS
Family 74HC
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF.
SYMBOL
PARAMETER
TEST CONDITIONS
WAVEFORMS
V_CC (V)
MIN.
T_amb = −40 to +85 °C
t_PHL/t_PLH
propagation delay
nCP to nQ, nQ
see Fig.7
2.0
−
4.5
−
6.0
−
propagation delay
nSD to nQ, nQ
see Fig.8
2.0
−
4.5
−
6.0
−
propagation delay
nRD to nQ, nQ
see Fig.8
2.0
−
4.5
−
6.0
−
t_THL/t_TLH
output transition time see Fig.7
2.0
−
4.5
−
6.0
−
t_W
clock pulse width
see Fig.7
HIGH or LOW
2.0
100
4.5
20
6.0
17
set or reset pulse width see Fig.8
LOW
2.0
100
4.5
20
6.0
17
t_rem
removal time set or
see Fig.8
reset
2.0
40
4.5
8
6.0
7
t_su
set-up time nD to nCP see Fig.7
2.0
75
4.5
15
6.0
13
t_h
hold time nCP to nD see Fig.7
2.0
3
4.5
3
6.0
3
f_max
maximum clock pulse see Fig.7
frequency
2.0
4.8
4.5
24
6.0
28
TYP.
47
17
14
50
18
14
52
19
15
19
7
6
19
7
6
19
7
6
3
1
1
6
2
2
−6
−2
−2
23
69
82
MAX.
220
44
37
250
50
43
250
50
43
95
19
16
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
2003 Jul 10
10