74AHC74D 데이터 시트보기 (PDF) - Nexperia B.V. All rights reserved
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74AHC74D
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74AHC74D Datasheet PDF : 15 Pages
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Table 8. Measurement points
Type
74AHC74
74AHCT74
74AHC74; 74AHCT74
Dual D-type flip-flop with set and reset; positive-edge trigger
Input
VM
0.5 × VCC
1.5 V
Output
VM
0.5 × VCC
0.5 × VCC
VI 90 %
negative
pulse
GND
VI
positive
pulse
GND 10 %
VM
10 %
tf
tr
90 %
VM
VI
G
RT
tW
tW
VCC
DUT
VM
tr
tf
VM
VO
CL
001aah768
Fig. 9.
For test data, see Table 9.
Definitions for test circuit:
CL = Load capacitance including jig and probe capacitance.
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
Test circuit for measuring switching times
Table 9. Test data
Type
74AHC74
74AHCT74
Input
VI
VCC
3.0 V
tr, tf
≤ 3.0 ns
≤ 3.0 ns
Load
CL
50 pF, 15 pF
50 pF, 15 pF
Test
tPLH, tPHL
tPLH, tPHL
74AHC_AHCT74
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 22 April 2020
© Nexperia B.V. 2020. All rights reserved
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