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74ACT11253D Datasheet(Hoja de datos) 4 Page - Texas Instruments

No. de Pieza. 74ACT11253D
Descripción  DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
Descarga  5 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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54ACT11253, 74ACT11253
DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS
WITH 3-STATE OUTPUTS
SCAS040A – D3110, MARCH 1988 – REVISED APRIL 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2–4
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
54ACT11253
74ACT11253
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
AorB
Any Y
1.5
6.8
9.8
1.5
11.8
1.5
11
ns
tPHL
A or B
Any Y
1.5
9.1
12.6
1.5
15.5
1.5
14.3
ns
tPLH
Data (Any C)
Y
1.5
5.7
7.4
1.5
8.9
1.5
8.3
ns
tPHL
Data (Any C)
Y
1.5
7.2
10.5
1.5
12.5
1.5
11.7
ns
tPZH
G
Y
1.5
5
7.6
1.5
9
1.5
8.5
ns
tPZL
G
Y
1.5
4.8
7.3
1.5
8.6
1.5
8.1
ns
tPHZ
G
Y
1.5
6.4
8.6
1.5
9.5
1.5
9.2
ns
tPLZ
G
Y
1.5
5.9
7.4
1.5
8.1
1.5
7.8
ns
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
C d
Power dissipation capacitance per multiplexer
Outputs enabled
CL =50 pF
f=1MHz
42
pF
Cpd
Power dissipation capacitance per multiplexer
Outputs disabled
CL = 50 pF,
f = 1 MHz
18
pF
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
2
× VCC
500
500
tPLH
tPHL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
× VCC
(see Note C)
Output
Waveform 2
S1 at GND
(see Note C)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
1.5 V
1.5 V
1.5 V
[ VCC
3 V
0 V
50% VCC
50% VCC
VOH
VOL
0 V
50% VCC
20% VCC
50% VCC
80% VCC
[ 0 V
3 V
GND
Open
Input
(see Note B)
Output
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2
× VCC
GND
TEST
S1
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR
≤ 10 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns.
C. 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.
D. 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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