18-BIT UNIVERSAL BUS DRIVER
WITH 3-STATE OUTPUTS
HG74ALVC162835C
Jan. 1999
Parameter Measurement (VCC=2.5V±0.2V)
From Output
Under Test
CL= 30pF
(see Note)
500Ω
500Ω
2 x Vcc
S1
Open
GND
Test
tpd
tPLZ / tPZL
tPHZ /tPZH
S1
Open
2 x VCC
GND
Figure 1. Load Circuit
Note) CL includes probe and jig capacitance
Voltage Waveforms
Timing
Input
Data
Input
VCC /2
tsu
th
VCC /2
VCC
0V
VCC
VCC /2
0V
Figure 2. Set up and Hold Times
Input
tw
VCC /2
VCC
VCC /2
0V
Figure 3. Pulse Duration
Input
Output
VCC
VCC /2
VCC /2
0V
tPLH
tPHL
VCC/2
VCC /2
VOH
VOL
Figure 4. Propagation Delay times
Copyright ©1999, Hyundai Electronics Industries Co., Ltd.
ELECTRONICS