NXP Semiconductors
74AHC273; 74AHCT273
Octal D-type flip-flop with reset; positive-edge trigger
VI 90 %
tW
negative
pulse
VM
GND
10 %
tf
tr
VI
90 %
positive
pulse
VM
10 %
GND
tW
VCC
VI
G
DUT
RT
VM
tr
tf
VM
VO
CL
001aah768
Test data is given in Table 9.
Definitions test circuit:
RT = termination resistance should be equal to output impedance Zo of the pulse generator.
CL = load capacitance including jig and probe capacitance.
Fig 10. Load circuitry for measuring switching times
Table 9. Test data
Type
74AHC273
74AHCT273
Input
VI
VCC
3.0 V
tr, tf
≤ 3.0 ns
≤ 3.0 ns
Load
CL
15 pF, 50 pF
15 pF, 50 pF
Test
tPLH, tPHL
tPLH, tPHL
74AHC_AHCT273_3
Product data sheet
Rev. 03 — 13 May 2008
© NXP B.V. 2008. All rights reserved.
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