HD74LVC16244A 查看數據表（PDF） - Renesas Electronics
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HD74LVC16244A Datasheet PDF : 8 Pages
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HD74LVC16244A
Test Circuit
VCC
VCC
Input
Pulse generator
Zout = 50 Ω
1G to 4G
Output
1Y1 to 4Y4
1A1 to 4A4
CL =
50 pF
500 Ω S1
450 Ω
50 Ω Scope
OPEN
*1 See under table
GND
Note: 1. CL includes probe and jig capacitance.
Symbol
tPLH / t PHL
tZH/ t HZ
tZL / t LZ
S1
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
OPEN OPEN
GND
GND
6V
2×Vcc
Waveforms – 1
Input
10 %
tr
90 %
Vref
tPLH
tf
90 %
Vref
10 %
tPHL
Output
Vref
Vref
Notes: 1. tr = 2.5 ns, tf = 2.5 ns
2. Input waveform : PRR = 10 MHz, duty cycle 50%
VIH
GND
VOH
VOL
Rev.4.00 Jul. 29, 2004 page 5 of 7
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