PI74AVC+16244
2.5V 16-Bit Buffer Driver
with 3-State Outputs 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
PARAMETER MEASUREMENT INFORMATION
VCC = 1.2V and 1.5V ±0.1V
From Output
Under Test
CL = 15pF
(See Note A)
2Ω
2Ω
2xVCC
S1
Open
GND
Timing
Input
Data
Input
Load Circuit
VCC
VCC/2
0V
tsu
th
VCC/2
VCC/2
VCC
0V
Voltage Waveforms
Setup and Hold Times
Input
Output
VCC/2
tPLH
VCC/2
VCC/2
tPHL
VCC
0V
VCC/2
VOH
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 +0.1V
tPHZ
VOH –0.1V
VOL
VOH
0V
Voltage Waveforms
Enable and Disable Times
Figure 1. 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 the following 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
06-0164
6
PS8507B 05/31/06