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PDF MC54F353 Data sheet ( Hoja de datos )
| Número de pieza | MC54F353 | |
| Descripción | DUAL 4-INPUT MULTIPLEXER | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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DUAL 4-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
The MC54/74F353 is a dual 4-input multiplexer with 3-state outputs. It can
select two bits of data from four sources using common Select inputs. The out-
puts may be individually switched to a high impedance state with a HIGH on
the respective Output Enable (OE) inputs, allowing the outputs to interface di-
rectly with bus-oriented systems.
• Inverted Version of F253
• Multifunction Capability
• Separate Enables for Each Multiplexer
FUNCTIONAL DESCRIPTION
The MC54/74F353 contains two identical 4-input multiplexers with 3-state
outputs. They select two bits from four sources selected by common Select
inputs (S0, S1).The 4-input multiplexers have individual Output enable (OEa,
OEb) inputs which, when HIGH, force the outputs to a high impedance (high
Z) state. The logic equations for the outputs are shown below:
Za=OEa • (I0a • S1 • S0 +I1a • S1 • S0 + I2a • S1 • S0 + I3a • S1 • S0)
Zb=OEb• (I0b • S1 • S0 + I1b • S1 • S0 + I2b•S1•S0+I3b•S1•S0)
If the outputs of 3-state devices are tied together, all but one device must
be in the high impedance state to avoid high currents that would exceed the
maximum ratings. Designers should ensure that Output Enable signals to
3-state devices whose outputs are tied together are designed so that there is
no overlap.
CONNECTION DIAGRAM (TOP VIEW)
VCC OEb S0 I3b I2b I1b I0b Zb
16 15 14 13 12 11 10 9
12345678
OEa S1 I3a I2a I1a I0a Za GND
MC54/74F353
DUAL 4-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
16
1
J SUFFIX
CERAMIC
CASE 620-09
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
MC54FXXXJ
MC74FXXXN
MC74FXXXD
Ceramic
Plastic
SOIC
LOGIC SYMBOL
2 14
7
9
VCC = PIN 16
GND = PIN 8
S1 S0
OEa
I0a
Za
I1a
I2a
I3a
I0b
I1b
Zb I2b
I3b
OEb
1
6
5
4
3
10
11
12
13
15
FAST AND LS TTL DATA
4-160
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet MC54F353.PDF ] | |
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