PI74ALVCH32245 Ver la hoja de datos (PDF) - Pericom Semiconductor
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PI74ALVCH32245 Datasheet PDF : 7 Pages
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PI74ALVCH32245
3.3V, 32-Bit Bidirectional Tranceiver
with 3-State Outputs 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
PARAMETER MEASUREMENT INFORMATION
VCC = 2.7V and 3.3V ±0.3V
From Output
Under Test
CL = 50pF
(See Note A)
500Ω
500Ω
6V
S1
Open
GND
Load Circuit
Test
tpd
tPLZ/tPZH
tPHZ/tPZH
S1
Open
6V
GND
Timing
Input
Data
Input
Input
Output
1.5V
2.7V
0V
tsu
th
1.5V
1.5V
2.7V
0V
Voltage Waveforms
Setup and Hold Times
1.5V
tPLH
1.5V
tPHL
2.7V
0V
1.5V
1.5V
VOH
VOL
Voltage Waveforms
Propagation Delay Times
tW
2.7V
Input
1.5V
1.5V
0V
Voltage Waveforms
Pulse Duration
Output
Control
(Low Level
Enabling)
tPZL
Output
Waveform 1
S1 at 6V
(see Note B) tPZH
Output
Waveform 2
S1 at GND
(see Note B)
1.5V
1.5V
1.5V
1.5V
tPLZ
2.7V
0V
3V
VOL +0.3V
tPHZ
VOH –0.3V
VOL
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.
C. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis
F. tPZL and tPZH are the same as ten
G. tPLH and tPHL are the same as tpd
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
7
PS8437 08/24/01
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