PI74AVC+16836
2.5V 20-Bit Universal Bus
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PARAMETER MEASUREMENT INFORMATION
VCC = 1.8V ±0.15V
1 kΩ
30
1 kΩ
Timing
Input
Data
Input
Load Circuit
VCC/2
VCC
0V
tsu
th
VCC/2
VCC/2
VCC
0V
Voltage Waveforms
Setup and Hold Times
Input
Output
VCC/2
tPLH
VCC/2
VCC
VCC/2
0V
tPHL
VOH
VCC/2
VOL
Voltage Waveforms
Propagation Delay Times
Test
tpd
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 x VCC
GND
Input
tW
VCC/2
VCC/2
VCC
0V
Voltage Waveforms
Pulse Duration
Output
Control
(Low Level
Enabling) tPZL
Output
Waveform 1
S1 at 2 x VCC
(see Note B) tPZH
Output
Waveform 2
S1 at GND
(see Note B)
VCC/2
VCC/2
VCC/2
VCC/2
tPLZ
VCC
0V
VCC
VOL +00.1.1V5V VOL
tPHZ
VOH –00.1.1V5V VOH
0V
Voltage Waveforms
Enable and Disable Times
Figure 2. Load Circuit and Voltage Waveforms
Notes:
A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
• All input impulses are supplied by generators having these characteristics: PRR ≤ 10 MHz, ZO = 50Ω, tR ≤ 2.0ns, tF ≤ 2.0ns.
• The outputs are measured one at a time with one transition per measurement.
• tPLZ and tPHZ are the same as tdis
• tPZL and tPZH are the same as ten
• tPLH and tPHL are the same as tpd
08-0291
7
PS8511E 10/17/08