74AHC74 데이터 시트보기 (PDF) - NXP Semiconductors.
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74AHC74 Datasheet PDF : 18 Pages
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NXP Semiconductors
74AHC74; 74AHCT74
Dual D-type flip-flop with set and reset; positive-edge trigger
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 9.
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ[1] Max Min Max
Min
Max
74AHC74
tpd
propagation nCP to nQ, nQ; see Figure 7 [2]
delay
VCC = 3.0 V to 3.6 V
CL = 15 pF
- 5.2 11.9 1.0 14.0
1.0
15.0 ns
CL = 50 pF
- 7.4 15.4 1.0 17.5
1.0
19.5 ns
VCC = 4.5 V to 5.5 V
CL = 15 pF
- 3.7 7.3 1.0
8.5
1.0
9.5 ns
CL = 50 pF
- 5.2 9.3 1.0 10.5
1.0
12.0 ns
nSD, nRD to nQ, nQ;
see Figure 8
VCC = 3.0 V to 3.6 V
CL = 15 pF
CL = 50 pF
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
fmax
maximum see Figure 7
frequency
VCC = 3.0 V to 3.6 V
CL = 15 pF
CL = 50 pF
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
tW
pulse width CP HIGH or LOW;
nSD, nRD LOW;
see Figure 7 and 8
- 5.4 12.3 1.0 14.5
1.0
15.5 ns
- 7.7 15.8 1.0 18.0
1.0
20.0 ns
- 3.7 7.7 1.0
9.0
1.0
10.0 ns
- 5.3 9.7 1.0 11.0
1.0
12.5 ns
80 125 -
45
-
45
- MHz
50 75 -
70
-
70
- MHz
130 170 - 110
-
110
- MHz
90 115 -
75
-
75
- MHz
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
tsu
set-up time nD to nCP; see Figure 7
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
th
hold time nD to nCP; see Figure 7
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
trec
recovery nRD to nCP; see Figure 8
time
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
6.0 -
-
7.0
-
7.0
- ns
5.0 -
-
5.0
-
5.0
- ns
6.0 -
-
7.0
-
7.0
- ns
5.0 -
-
5.0
-
5.0
- ns
0.5 -
-
0.5
-
0.5
- ns
0.5 -
-
0.5
-
0.5
- ns
5.0 -
-
5.0
-
5.0
- ns
3.0 -
-
3.0
-
3.0
- ns
74AHC_AHCT74_5
Product data sheet
Rev. 05 — 9 June 2008
© NXP B.V. 2008. All rights reserved.
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