74HC_HCT221_CNV_15 Datasheet, PDF (6/15 Pages) NXP Semiconductors – Dual non-retriggerable monostable multivibrator with reset

Philips Semiconductors
Dual non-retriggerable monostable
multivibrator with reset
Product specification
74HC/HCT221
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard (except for nR_EXT/C_EXT)
I_CC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
SYMBOL PARAMETER
74HC
UNIT
+25
−40 to +85 −40 to +125
min typ max. min max. min. max.
t_PLH
t_PLH
t_PHL
t_PHL
t_PLH
t_PLH
t_THL/
t_TLH
t_W
t_W
t_W
t_W
propagation delay (trigger)
72 220
275
nA, nB to nQ
26 44
55
21 37
47
330 ns
66
56
propagation delay (trigger)
80 245
305
nR_D to nQ
29 49
61
23 42
52
370 ns
74
63
propagation delay (trigger)
58 180
225
nA, nB to nQ
21 36
45
17 31
38
270 ns
54
46
propagation delay (trigger)
63 195
245
nR_D to nQ
23 39
49
18 33
42
295 ns
59
50
propagation delay (reset)
nR_D to nQ
66 200
250
24 40
50
19 34
43
300 ns
60
51
propagation delay (reset)
nR_D to nQ
58 180
225
21 36
45
17 31
38
270 ns
54
46
output transition time
19 75
95
7 15
19
6 13
16
110 ns
22
19
trigger pulse width
75 25
95
110
ns
nA = LOW
15 9
19
22
13 7
16
19
trigger pulse width
90 30
115
135
ns
nB = HIGH
18 11
23
27
15 9
20
23
trigger pulse width
75 25
95
110
ns
nR_D = LOW
15 9
19
22
13 7
16
19
output pulse width
nQ = LOW
nQ = HIGH
630 700 770 602 798 595 805 µs
TEST CONDITIONS
V_CC ^WAVEFORMS
(V)
2.0 C_EXT = 0 pF;
4.5 R_EXT = 5 kΩ;
6.0 Fig.10
2.0 C_EXT = 0 pF;
4.5 R_EXT = 5 kΩ;
6.0 Fig.10
2.0 C_EXT = 0 pF;
4.5 R_EXT = 5 kΩ;
6.0 Fig.10
2.0 C_EXT = 0 pF;
4.5 R_EXT = 5 kΩ;
6,0 Fig.10
2.0 C_EXT = 0 pF;
4.5 R_EXT = 5 kΩ;
6.0 Fig.11
2.0 C_EXT = 0 pF;
4.5 R_EXT = 5 kΩ;
6.0 Fig.11
2.0 Fig.10
4.5
6.0
2.0 Fig.7
4.5
6.0
2.0 Fig.7
4.5
6.0
2.0 Fig.8
4.5
6.0
5.0 C_EXT = 100 nF;
R_EXT = 10 kΩ;
Fig.10
December 1990
6