HD74LVC373A 查看數據表（PDF） - Renesas Electronics
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HD74LVC373A Datasheet PDF : 9 Pages
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HD74LVC373A
Test Circuit
Note:
VCC
VCC
Output
Input
Pulse generator
Zout = 50 Ω
Input
Pulse generator
Zout = 50 Ω
G
1Q to 8Q
1D to 8D
LE
500 Ω S1
CL =
450 Ω
50 pF 50 Ω Scope
OPEN
*1 See under table
GND
Symbol
tPLH / t PHL
tsu / t h / t w
tZH/ t HZ
tZL / t LZ
S1
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
OPEN OPEN
GND
6V
GND
2×Vcc
1. CL includes probe and jig capacitance.
Waveforms – 1
Input LE
Input D
Output Q
tr
tf
10 %
tr
90 % 90 %
Vref
10 %
tf
90 %
90 %
10 %
tPLH
10 %
Vref
Vref
tPHL
Vref
VIH
GND
VIH
GND
VOH
VOL
Rev.4.00 Jul. 27, 2004 page 5 of 8
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