74AHC273 Просмотр технического описания (PDF) - NXP Semiconductors.
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74AHC273 Datasheet PDF : 18 Pages
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NXP Semiconductors
74AHC273; 74AHCT273
Octal D-type flip-flop with reset; positive-edge trigger
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 10.
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ[1] Max Min Max Min
Max
74AHC273
tpd
propagation CP to Qn; see Figure 7
delay
VCC = 3.0 V to 3.6 V
CL = 15 pF
[2]
- 6.0 13.6 1.0 16.0 1.0
17.0 ns
CL = 50 pF
VCC = 4.5 V to 5.5 V
- 8.6 17.1 1.0 19.5 1.0
21.5 ns
CL = 15 pF
- 4.2 9 1.0 10.5 1.0
11.5 ns
CL = 50 pF
MR to Qn; see Figure 8
- 6.0 11.0 1.0 12.5 1.0
[3]
14.0 ns
VCC = 3.0 V to 3.6 V
CL = 15 pF
- 5.1 13.6 1.0 16.0 1.0
17.0 ns
CL = 50 pF
VCC = 4.5 V to 5.5 V
- 7.3 17.1 1.0 19.5 1.0
21.5 ns
CL = 15 pF
CL = 50 pF
- 3.7 8.5 1.0 10.0 1.0
- 5.3 10.5 1.0 12.0 1.0
11.0 ns
13.5 ns
fmax
maximum see Figure 7
frequency
VCC = 3.0 V to 3.6 V
CL = 15 pF
75 120 - 65
-
65
-
MHz
CL = 50 pF
50 75 - 45
-
45
-
MHz
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
120 165 - 100
-
100
80 110 - 70
-
70
-
MHz
-
MHz
tW
pulse width CP HIGH or LOW;
see Figure 7
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
5.0 -
- 6.5
-
6.5
5.0 -
- 5.0
-
5.0
-
ns
-
ns
MR LOW; see Figure 8
VCC = 3.0 V to 3.6 V
5.0 -
- 6.0
-
6.0
-
ns
VCC = 4.5 V to 5.5 V
5.0 -
- 5.0
-
5.0
-
ns
tsu
set-up time Dn to CP; see Figure 9
VCC = 3.0 V to 3.6 V
3.0 -
- 3.0
-
3.0
-
ns
VCC = 4.5 V to 5.5 V
3.0 -
- 3.0
-
3.0
-
ns
th
hold time Dn to CP; see Figure 9
VCC = 3.0 V to 3.6 V
VCC = 4.5 V to 5.5 V
1.0 -
- 1.0
-
1.0
1.0 -
- 1.0
-
1.0
-
ns
-
ns
74AHC_AHCT273_3
Product data sheet
Rev. 03 — 13 May 2008
© NXP B.V. 2008. All rights reserved.
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