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74HC251-Q100 Datasheet(Hoja de datos) 11 Page - Nexperia B.V. All rights reserved

No. de Pieza. 74HC251-Q100
Descripción  8-input multiplexer; 3-state
Descarga  17 Pages
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Fabricante  NEXPERIA [Nexperia B.V. All rights reserved]
Página de inicio  https://www.nexperia.com/
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Nexperia
74HC251-Q100; 74HCT251-Q100
8-input multiplexer; 3-state
VM
VM
tW
tW
10 %
90 %
0 V
VI
VI
negative
pulse
positive
pulse
0 V
VM
VM
90 %
10 %
tf
tr
tr
tf
001aad983
DUT
VCC
VCC
VI
VO
RT
RL
S1
CL
open
G
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.
RL= Load resistance.
S1 = Test selection switch.
Fig. 9. Test circuit for measuring switching times
Table 9. Test data
Input
Load
S1 position
Type
VI
tr, tf
CL
RL
tPHL, tPLH
tPZH, tPHZ
tPZL, tPLZ
74HC251-Q100
VCC
6 ns
15 pF, 50 pF 1 kΩ
open
GND
VCC
74HCT251-Q100
3 V
6 ns
15 pF, 50 pF 1 kΩ
open
GND
VCC
74HC_HCT251_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2019. All rights reserved
Product data sheet
Rev. 2 — 15 July 2019
11 / 17




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