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PDF 54LS257B Data sheet ( Hoja de datos )
| Número de pieza | 54LS257B | |
| Descripción | QUAD 2-INPUT MULTIPLEXER | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 54LS257B (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
The LSTTL / MSI SN54 / 74LS257B and the SN54 / 74LS258B are Quad
2-Input Multiplexers with 3-state outputs. Four bits of data from two sources
can be selected using a Common Data Select input. The four outputs present
the selected data in true (non-inverted) form. The outputs may be switched to
a high impedance state with a HIGH on the common Output Enable (EO) In-
put, allowing the outputs to interface directly with bus oriented systems. It is
fabricated with the Schottky barrier diode process for high speed and is com-
pletely compatible with all Motorola TTL families.
• Schottky Process For High Speed
• Multiplexer Expansion By Tying Outputs Together
• Non-Inverting 3-State Outputs
• Input Clamp Diodes Limit High Speed Termination Effects
• Special Circuitry Ensures Glitch Free Multiplexing
• ESD > 3500 Volts
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC E0 I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
SN54/74LS257B
VCC = PIN 16
GND = PIN 8
1 2 3 4 56 78
S I0a I1a Za I0b I1b Zb GND
VCC E0 I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
SN54/74LS258B
1 2 3 4 56 78
S I0a I1a Za I0b I1b Zb GND
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
SN54/74LS257B
SN54/74LS258B
QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
LOW POWER SCHOTTKY
16
1
16
1
16
1
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
FAST AND LS TTL DATA
5-1
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet 54LS257B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| 54LS257 | 54LS257A DM54LS257B TRI-STATE Quad 2-Data Selectors/Multiplexers (Rev. A) |  Texas Instruments |
| 54LS257A | TRI-STATE Quad 2-Data Selectors/Multiplexers |  National Semiconductor |
| 54LS257A | 54LS257A DM54LS257B TRI-STATE Quad 2-Data Selectors/Multiplexers (Rev. A) | Texas Instruments |
| 54LS257B | QUAD 2-INPUT MULTIPLEXER | Motorola Semiconductors |
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