74AHCT374PW データシートの表示（PDF） - NXP Semiconductors.
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74AHCT374PW Datasheet PDF : 17 Pages
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NXP Semiconductors
74AHC374; 74AHCT374
Octal D-type flip-flop; positive edge-trigger; 3-state
Table 7. Dynamic characteristics …continued
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
th
hold time Dn to CP; see Figure 8
VCC = 3.0 V to 3.6 V
2.0 -
-
2.0
-
2.0
- ns
VCC = 4.5 V to 5.5 V
2.0 -
-
2.0
-
2.0
- ns
CPD
power
fi = 1 MHz; VI = GND to VCC [5] -
10 -
-
-
-
- pF
dissipation
capacitance
74AHCT374; VCC = 4.5 V to 5.5 V
tpd
propagation CP to Qn; see Figure 6 and [2]
delay
Figure 8
CL = 15 pF
CL = 50 pF
ten
enable time OE to Qn; see Figure 7
CL = 15 pF
CL = 50 pF
tdis
disable time OE to Qn; see Figure 7
CL = 15 pF
CL = 50 pF
fmax
maximum see Figure 6
frequency
CL = 15 pF
CL = 50 pF
tW
pulse width CP HIGH or LOW;
see Figure 6
- 4.3 9.4 1.0 10.5
1.0
12.0 ns
- 5.6 10.4 1.0 11.5
1.0
13.0 ns
[3]
- 3.5 10.2 1.0 11.5
1.0
13.0 ns
- 4.8 11.2 1.0 12.5
1.0
14.0 ns
[4]
- 3.6 10.2 1.0 11.0
1.0
13.0 ns
- 5.7 11.2 1.0 12.0
1.0
14.0 ns
90 140 -
80
-
80
- MHz
85 130 -
75
-
75
- MHz
6.5 -
-
6.5
-
6.5
- ns
tsu
set-up time Dn to CP; see Figure 8
2.5 -
-
2.5
-
2.5
- ns
th
hold time Dn to CP; see Figure 8
2.5 -
-
2.5
-
2.5
- ns
CPD
power
fi = 1 MHz; VI = GND to VCC [5] -
12 -
-
-
-
- pF
dissipation
capacitance
[1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).
[2] tpd is the same as tPLH and tPHL.
[3] ten is the same as tPZH and tPZL.
[4] tdis is the same as tPHZ and tPLZ.
[5] CPD is used to determine the dynamic power dissipation (PD in µW).
PD = CPD × VCC2 × fi × N + Σ(CL × VCC2 × fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
Σ(CL × VCC2 × fo) = sum of the outputs.
74AHC_AHCT374_3
Product data sheet
Rev. 03 — 12 June 2008
© NXP B.V. 2008. All rights reserved.
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