PI74ALVCH32245 Просмотр технического описания (PDF) - Pericom Semiconductor Corporation
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PI74ALVCH32245
Pericom Semiconductor Corporation
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 = 2.5V ±0.2V
From Output
Under Test
CL = 30pF
(See Note A)
500Ω
500Ω
2 x VCC
S1
Open
GND
Test
tpd
tPLZ/tPZH
tPHZ/tPZH
S1
Open
2 x VCC
GND
Load Circuit
Timing
Input
Data
Input
Input
Output
VCC/2
VCC
0V
tsu
th
VCC/2
VCC/2
VCC
0V
Voltage Waveforms
Setup and Hold Times
VCC/2
tPLH
VCC/2
VCC/2
tPHL
VCC
0V
VOH
VCC/2
VOL
Voltage Waveforms
Propagation Delay Times
Input
tW
VCC/2
VCC
VCC/2
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 +0.15V VOL
tPHZ
VOH –0.15V 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.
C. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.0ns, tF ≤ 2.0ns.
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
6
PS8437 08/24/01
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