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74ALVCH16825DGGRE4 Datasheet(Fiches technique) 7 Page - Texas Instruments

Numéro de pièce 74ALVCH16825DGGRE4
Description  Member of the Texas Instruments Widebus
Télécharger  14 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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PARAMETER MEASUREMENT INFORMATION
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
VCC/2
VOH
VOL
th
tsu
From Output
Under Test
CL = 30 pF
(see Note A)
LOAD CIRCUIT
S1
Open
GND
500
500
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
× VCC
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
tPZL
tPZH
tPLZ
tPHZ
0 V
VOL + 0.15 V
VOH − 0.15 V
0 V
VCC
0 V
0 V
tw
VCC
VCC
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Timing
Input
Data
Input
Input
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
2
× VCC
GND
TEST
S1
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 = 50 Ω, tr ≤ 2 ns, tf ≤ 2 ns.
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.
0 V
VCC
VCC/2
tPHL
VCC/2
VCC/2
VCC
0 V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VCC/2
VCC/2
tPLH
2
× VCC
VCC
SN74ALVCH16825
18-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES039D – JULY 1995 – REVISED OCTOBER 2004
V
CC = 2.5 V ± 0.2 V
Figure 2. Load Circuit and Voltage Waveforms
7




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