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Número de pieza | CBT3251 | |
Descripción | 1-of-8 FET multiplexer/demultiplexer | |
Fabricantes | NXP Semiconductors | |
Logotipo | ||
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CBT3251
1-of-8 FET multiplexer/demultiplexer
Preliminary data
2002 Sep 09
Philips
Semiconductors
1 page Philips Semiconductors
1-of-8 FET multiplexer/demultiplexer
Preliminary data
www.DCataBShTe3et24U5.c1om
AC CHARACTERISTICS
Tamb = –40 to +85 °C; CL = 50 pF
SYMBOL
PARAMETER
FROM (INPUT)
TO
(OUTPUT)
LIMITS
VCC = +5.0 V ±0.5 V
MIN MAX
UNIT
tpd Propagation delay1
tpd Propagation delay
ten
Output enable time
to High and Low level
A or B
B or A
—
0.25 ns
S A 2 5.5 ns
S B 1.5 5.6 ns
OE
A or B
1.6
5.8 ns
tdis
Output disable time
from High and Low level
S B 1.9 6.4 ns
OE
A or B
2.3
6.2 ns
NOTE:
1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance,
when driven by an ideal voltage source (zero output impedance).
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
3V
INPUT
1.5 V
tPLH
1.5 V
tPHL
0V
VOH
OUTPUT
1.5 V
1.5 V
VOL
SA00028
Waveform 1. Input to Output Propagation Delays
Output Control
1.5 V
1.5 V
3V
tPZL
Output
Waveform 1
S1 at 7 V
(see Note)
tPZH
Output
Waveform 2
S1 at Open
(see Note)
1.5 V
1.5 V
tPLZ
tPHZ
0V
3.5 V
VOL + 0.3 V
VOL
VOH
VOH – 0.3 V
0V
Note:
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.
SA00571
Waveform 2. 3-State Output Enable and Disable Times
NOTES:
1. tPLZ and tPHZ are the same as tdis.
2. tPZL and tPZH are the same as ten.
3. tPLH and tPHL are the same as tpd.
TEST CIRCUIT AND WAVEFORMS
From Output
Under Test
CL = 50 pF
500 Ω
500 Ω
7V
S1
Open
GND
Load Circuit
TEST
S1
tpd
tPLZ/tPZL
tPHZ/tPZH
open
7V
open
DEFINITIONS
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
SA00012
NOTES:
1. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
2. The outputs are measured one at a time with one transition per
measurement.
2002 Sep 09
5
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet CBT3251.PDF ] |
Número de pieza | Descripción | Fabricantes |
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