74AHCT32D 데이터 시트보기 (PDF) - NXP Semiconductors.
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74AHCT32D Datasheet PDF : 14 Pages
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NXP Semiconductors
74AHC32; 74AHCT32
Quad 2-input OR gate
Table 7. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 7.
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ[1] Max Min Max
Min
Max
74AHCT32; VCC = 4.5 V to 5.5 V
tpd
propagation nA, nB to nY; see Figure 6 [2]
delay
CL = 15 pF
- 3.1 6.9 1.0
8.0
1.0
9.0 ns
CL = 50 pF
- 4.3 7.9 1.0
9.0
1.0
10.0 ns
CPD
power
fi = 1 MHz; VI = GND to VCC [3] -
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] 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.
11. Waveforms
VI
nA, nB input
GND
VOH
nY output
VOL
VM
t PHL
VM
t PLH
mna224
Fig 6.
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Input to output propagation delays
Table 8. Measurement points
Type
74AHC32
74AHCT32
Input
VM
0.5 × VCC
1.5 V
Output
VM
0.5 × VCC
0.5 × VCC
74AHC_AHCT32_4
Product data sheet
Rev. 04 — 22 May 2008
© NXP B.V. 2008. All rights reserved.
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