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74ACT11238D Datasheet(Fiches technique) 4 Page - Texas Instruments

Numéro de pièce 74ACT11238D
Description  3-LINE TO 8-LINE DECODER/DEMULTIPLEXER
Télécharger  8 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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74ACT11238
3LINE TO 8LINE DECODER/DEMULTIPLEXER
SCAS054 − NOVEMBER 1988 − REVISED APRIL 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
2−4
switching characteristics, VCC = 5 V ± 0.5 V (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
MIN
MAX
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
UNIT
tPLH
A, B or C
Y
1.5
5
8.6
1.5
9.6
ns
tPHL
A, B or C
Y
1.5
5.7
9.7
1.5
10.8
ns
tPLH
G1
Y
1.5
6
8.4
1.5
9.4
ns
tPHL
G1
Y
1.5
6.9
10.2
1.5
11.4
ns
tPLH
G2A, G2B
Y
1.5
5.9
9
1.5
10.1
ns
tPHL
G2A, G2B
Y
1.5
7.8
10.7
1.5
12.1
ns
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per gate
CL = 50 pF,
f = 1 MHz
57
pF
PARAMETER MEASUREMENT INFORMATION
VOLTAGE WAVEFORMS
LOAD CIRCUIT
Input
(see Note B)
1.5 V
1.5 V
50% VCC
50% VCC
tPHL
tPLH
3 V
Output
VOL
VOH
0 V
From Output
Under Test
CL = 50 pF
(see Note A)
500
NOTES: A. CL includes probe and jig capacitance.
B. Input pulses are supplied by generators having the following characteristics: PRR
≤ 10 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns.
C. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms




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