AC Loading and Waveforms
OE Input
VCC
Input
CL
VIN
OPEN
RU
GND
Output
RD
CL includes load and stray capacitance
Input PRR = 1.0 MHz; tW = 500ns
Figure 1. AC Test Circuit
Input
VCC
A
OE
Output
Input = AC Waveform; tr = tf = 1.8ns;
PRR = 10 MHz; Duty Cycle = 50%
Figure 2. ICCD Test Circuit
PI74ST1G126
SOTiny™ Gate ST
Buffer with 3-State Output
Input
10%
tr = 3ns
90% 90%
tf = 3ns
VCC
50%
50%
tW
tPLH
10%
tPHL
GND
VOH
Output
50%
50%
VOL
OE Input
10%
tr = 3ns
90% 90%
tf = 3ns
VCC
50%
tPZL
50%
10%
tW
tPLZ
GND
VTRI
Output
50%
tPZH
Output
50%
tPHZ
VOL +0.3V
VOL
VOH
VOH -0.3V
VTRI
Figure 3. AC Waveforms
08-0291
4
PS8522G
11/10/08