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| 74HC123D.653 Datasheet, PDF (8/25 Pages) NXP Semiconductors – Dual retriggerable monostable multivibrator with reset | |||
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NXP Semiconductors
74HC123; 74HCT123
Dual retriggerable monostable multivibrator with reset
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 12.
Symbol Parameter Conditions
25 ï°C
ï40 ï°C to +85 ï°C ï40 ï°C to +125 ï°C Unit
Min Typ Max Min Max Min Max
74HC123
tpd
propagation nRD, nA, nB to nQ or nQ; [1]
delay
CEXT = 0 pF;
REXT = 5 kï;
see Figure 9
VCC = 2.0 V
VCC = 4.5 V
VCC = 5 V; CL = 15 pF
VCC = 6.0 V
nRD (reset) to nQ or nQ;
CEXT = 0 pF;
REXT = 5 kï;
see Figure 9
- 83 255
-
320
-
385 ns
- 30 51
-
64
-
77 ns
- 26 -
-
-
-
- ns
- 24 43
-
54
-
65 ns
VCC = 2.0 V
- 66 215
-
270
-
325 ns
VCC = 4.5 V
- 24 43
-
54
-
65 ns
VCC = 5 V; CL = 15 pF
- 20 -
-
-
-
- ns
VCC = 6.0 V
- 19 37
-
46
-
55 ns
tt
transition time see Figure 9
[1]
VCC = 2.0 V
- 19 75
-
95
-
110 ns
VCC = 4.5 V
- 7 15
-
19
-
22 ns
VCC = 6.0 V
- 6 13
-
16
-
19 ns
tW
pulse width nA LOW; see Figure 10
VCC = 2.0 V
100 8
-
125
-
150
- ns
VCC = 4.5 V
20 3 -
25
-
30
- ns
VCC = 6.0 V
17 2 -
21
-
26
- ns
nB HIGH; see Figure 10
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
nRD LOW; see Figure 11
100 17 -
125
-
150
- ns
20 6 -
25
-
30
- ns
17 5 -
21
-
26
- ns
VCC = 2.0 V
100 14 -
125
-
150
- ns
VCC = 4.5 V
20 5 -
25
-
30
- ns
VCC = 6.0 V
17 4 -
21
-
26
- ns
nQ HIGH and nQ LOW;
[2]
VCC = 5.0 V;
see Figure 10 and 11
CEXT = 100 nF;
REXT = 10 kï
CEXT = 0 pF;
REXT = 5 kï
- 450 -
-
-
-
- ïs
- 75 -
-
-
-
- ns
74HC_HCT123
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 â 16 December 2011
© NXP B.V. 2011. All rights reserved.
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