SN74LS674

ACTIVO

Registros de desplazamiento de salida en serie

Detalles del producto

Configuration Parallel-in, Serial-out Bits (#) 8 Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Input type Bipolar Output type Push-Pull Clock frequency (MHz) 25 IOL (max) (mA) 24 IOH (max) (mA) -2.6 Supply current (max) (µA) 40000 Features High speed (tpd 10-50ns) Operating temperature range (°C) 0 to 70 Rating Catalog
Configuration Parallel-in, Serial-out Bits (#) 8 Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Input type Bipolar Output type Push-Pull Clock frequency (MHz) 25 IOL (max) (mA) 24 IOH (max) (mA) -2.6 Supply current (max) (µA) 40000 Features High speed (tpd 10-50ns) Operating temperature range (°C) 0 to 70 Rating Catalog
SOIC (DW) 24 159.65 mm² 15.5 x 10.3
  • 'LS673
    • 16-Bit Serial-In, Serial-Out Shift Register with 16-Bit Parallel-Out Storage Register
    • Performs Serial-to-Parallel Conversion
  • 'LS674
    • 16-Bit Parallel-In, Serial-Out Shift Register
    • Performs Parallel-to-Serial Conversion
  • 'LS673
    • 16-Bit Serial-In, Serial-Out Shift Register with 16-Bit Parallel-Out Storage Register
    • Performs Serial-to-Parallel Conversion
  • 'LS674
    • 16-Bit Parallel-In, Serial-Out Shift Register
    • Performs Parallel-to-Serial Conversion

SN54LS673, SN74LS673

The 'LS673 is a 16-bit shift register and a 16-bit storage register in a single 24-pin package. A three-state input/output (SER/Q15) port to the shift register allows serial entry and/or reading of data. The storage register is connected in a parallel data loop with the shift register and may be asynchronously cleared by taking the store-clear input low. The storage register may be parallel loaded with shift-register data to provide shift-register status via the parallel outputs. The shift register can be parallel loaded with the storage-register data upon commmand.

A high logic level at the chip-level (CS\) input disables both the shift-register clock and the storage register clock and places SER/Q15 in the high-impedance state. The store-clear function is not disabled by the chip select.

Caution must be exercised to prevent false clocking of either the shift register or the storage register via the chip-select input. The shift clock should be low during the low-to-high transition of chip select and the store clock should be low during the high-to-low transition of chip select.

SN54LS674, SN74LS674

The 'LS674 is a 16-bit parallel-in, serial-out shift register. A three-state input/output (SER/Q15) port provides access for entering a serial data or reading the shift-register word in a recirculating loop.

The device has four basic modes of operation:

  1. Hold (do nothing)
  2. Write (serially via input/output)
  3. Read (serially)
  4. Load (parallel via data inputs)

Low-to-high-level changes at the chip select input should be made only when the clock input is low to prevent false clocking.

SN54LS673, SN74LS673

The 'LS673 is a 16-bit shift register and a 16-bit storage register in a single 24-pin package. A three-state input/output (SER/Q15) port to the shift register allows serial entry and/or reading of data. The storage register is connected in a parallel data loop with the shift register and may be asynchronously cleared by taking the store-clear input low. The storage register may be parallel loaded with shift-register data to provide shift-register status via the parallel outputs. The shift register can be parallel loaded with the storage-register data upon commmand.

A high logic level at the chip-level (CS\) input disables both the shift-register clock and the storage register clock and places SER/Q15 in the high-impedance state. The store-clear function is not disabled by the chip select.

Caution must be exercised to prevent false clocking of either the shift register or the storage register via the chip-select input. The shift clock should be low during the low-to-high transition of chip select and the store clock should be low during the high-to-low transition of chip select.

SN54LS674, SN74LS674

The 'LS674 is a 16-bit parallel-in, serial-out shift register. A three-state input/output (SER/Q15) port provides access for entering a serial data or reading the shift-register word in a recirculating loop.

The device has four basic modes of operation:

  1. Hold (do nothing)
  2. Write (serially via input/output)
  3. Read (serially)
  4. Load (parallel via data inputs)

Low-to-high-level changes at the chip select input should be made only when the clock input is low to prevent false clocking.

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Documentación técnica

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Tipo Título Fecha
* Data sheet 16-Bit Shift Registers datasheet 01 mar 1988
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 15 dic 2022
Selection guide Logic Guide (Rev. AB) 12 jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 dic 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 ene 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 jul 2004
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 ago 2002
Application note Designing With Logic (Rev. C) 01 jun 1997
Application note Designing with the SN54/74LS123 (Rev. A) 01 mar 1997
Application note Input and Output Characteristics of Digital Integrated Circuits 01 oct 1996
Application note Live Insertion 01 oct 1996

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

14-24-LOGIC-EVM — Módulo de evaluación genérico de productos lógicos para encapsulados D, DB, DGV, DW, DYY, NS y PW de

El módulo de evaluación 14-24-LOGIC-EVM (EVM) está diseñado para admitir cualquier dispositivo lógico que esté en un encapsulado D, DW, DB, NS, PW, DYY o DGV de 14 a 24 pines.

Guía del usuario: PDF | HTML
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (DW) 24 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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