PI74VCX16244 Ver la hoja de datos (PDF) - Pericom Semiconductor
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PI74VCX16244 Datasheet PDF : 8 Pages
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PI74VCX16244
16-Bit Buffer/Driver
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Test Circuits and Switching Waveforms
Parameter Measurement Information (VDD = 1.8V - 3.6V)
From Output
Under Test
350pF
CL
(See Note A)
R1
500Ω
RL
500Ω
2 x VDD
Open
GND
Setup, Hold, and Release Timing
Data
Input
Timing
Input
tSU
tH
VDD
VDD/2
0V
VDD
VDD/2
0V
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.
C. All input pulses are supplied by generators having the
following characteristics: PRR ≤ 10 MHz, ZO = 50Ω,
tr ≤ 2ns, tf ≤ 2ns, measured from 10% to 90%, unless
otherwise specified.
D. The outputs are measured one at a time with one
transition per measurement.
Switch Position
Test
tpd
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 x VDD
GND
Pulse Width
Low-High-Low
Pulse
tW
High-Low-High
Pulse
Propagaton Delay
Input
tPLH
Output
tPHL
Opposite Phase
Input Transition
Enable Disable Timing
Output
Control
(Active LOW)
tPZL
Output
Waveform 1
S1 at 2xVDD
(see Note B) tPZH
Output
Waveform 2
S1 at GND
(see Note B)
tPLZ
VDD
VDD/2
tPHZ
VDD/2
VDD
VDD/2
0V
VDD
VDD/2
0V
VDD
VDD/2
tPHL
0V
VDD
VDD/2
tPLH
VOL
VDD
VDD/2
0V
VDD
VDD/2
0V
VDD
+0.15V
VOL
-0.15V VOH
0V
7
PS8160C 09/27/04
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