|
|
PDF 74LCX257 Data sheet ( Hoja de datos )
| Número de pieza | 74LCX257 | |
| Descripción | Low-Voltage Quad 2-Input Multiplexer | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de 74LCX257 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
December 1996
74LCX257
Low-Voltage Quad 2-Input Multiplexer
with 5V Tolerant Inputs and Outputs
General Description
The LCX257 is a quad 2-input multiplexer with TRI-STATE
outputs Four bits of data from two sources can be selected
using a Common Data Select input The four outputs pres-
ent the selected data in true (noninverted) form The out-
puts may be switched to a high impedance state by placing
a logic HIGH on the common Output Enable (OE) input
allowing the outputs to interface directly with bus-oriented
systems
The 74LCX257 is fabricated with advanced CMOS technol-
ogy to achieve high speed operation while maintaining
CMOS low power dissipation
Features
Y 5V tolerant inputs and outputs
Y 6 5 ns tPD max 10 mA ICCQ max
Y Power down high impedance inputs and outputs
Y Supports live insertion withdrawal
Y 2 0V – 3 6V VCC supply operation
Y g24 mA output drive
Y Implements patented Quiet SeriesTM noise EMI reduc-
tion circuitry
Y Functionally compatible with 74 series 257
Y Latch-up performance exceeds 500 mA
Y ESD performance
Human body model l 2000V
Machine model l 200V
Logic Symbols
Connection Diagram
IEEE IEC
Pin Assignment for
SOIC and TSSOP
TL F 12466–1
TL F 12466 – 2
Pin Names
S
OE
I0a – I0d
I1a – I1d
Za – Zd
Description
Common Data Select Input
TRI-STATE Output Enable Input
Data Inputs from Source 0
Data Inputs from Source 1
TRI-STATE Multiplexer Outputs
Order Number
See NS Package Number
SOIC JEDEC
74LCX257M
74LCX257MX
M16A
SOIC EIAJ
74LCX257SJ
74LCX257SJX
M16D
TSSOP
74LCX257MTC
74LCX257MTCX
MTC16
TL F 12466 – 3
TRI-STATE is a registered trademark of National Semiconductor Corporation
Quiet SeriesTM is a trademark of National Semiconductor Corporation
C1996 National Semiconductor Corporation TL F 12466
RRD-B30M17 Printed in U S A
http www national com
1 page  
74LCX257 Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows
TL F 12466 – 5
5 http www national com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 74LCX257.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| 74LCX257 | Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs |  Fairchild Semiconductor |
| 74LCX257 | Low-Voltage Quad 2-Input Multiplexer | National Semiconductor |
| 74LCX257M | Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs | Fairchild Semiconductor |
| 74LCX257MTC | Low Voltage Quad 2-Input Multiplexer with 5V Tolerant Inputs and Outputs | Fairchild Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |