SN54LS590

ACTIVO

Contadores binarios de 8 bits con registros de salida

Detalles del producto

Function Counter Bits (#) 8 Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
Function Counter Bits (#) 8 Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns) Operating temperature range (°C) -55 to 125 Rating Military
CDIP (J) 16 135.3552 mm² 19.56 x 6.92 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • 8-Bit Counter with Register
  • Parallel Register Outputs
  • Choice of 3-State ('LS590) or Open-Collector ('LS591) Register Outputs
  • Guaranteed Counter Frequency:DC to 20 MHz

 

  • 8-Bit Counter with Register
  • Parallel Register Outputs
  • Choice of 3-State ('LS590) or Open-Collector ('LS591) Register Outputs
  • Guaranteed Counter Frequency:DC to 20 MHz

 

These devices each contain an 8-bit binary counter that feeds an 8-bit storage register. The storage register has parallel outputs. Separate clocks are provided for both the binary counter and storage register. The binary counter features a direct clear input CCLR\ and a count enable input CCKEN\. For cascading, a ripple carry output RCO\ is provided. Expansion is easily accomplished for two stages by connecting RCO\ of the first stage to CCKEN\ of the second stage. Cascading for larger count chains can be accomplished by connecting RCO\ of each stage to CCK of the following stage.

Both the counter and register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the counter state will always be one count ahead of the register. Internal circuitry prevents clocking from the clock enable.

 

These devices each contain an 8-bit binary counter that feeds an 8-bit storage register. The storage register has parallel outputs. Separate clocks are provided for both the binary counter and storage register. The binary counter features a direct clear input CCLR\ and a count enable input CCKEN\. For cascading, a ripple carry output RCO\ is provided. Expansion is easily accomplished for two stages by connecting RCO\ of the first stage to CCKEN\ of the second stage. Cascading for larger count chains can be accomplished by connecting RCO\ of each stage to CCK of the following stage.

Both the counter and register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the counter state will always be one count ahead of the register. Internal circuitry prevents clocking from the clock enable.

 

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Documentación técnica

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Tipo Título Fecha
* Data sheet 8-Bit Binary Counters With Output Registers datasheet 01 mar 1988
* SMD SN54LS590 SMD 5962-87517 21 jun 2016
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.

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
CDIP (J) 16 Ultra Librarian
LCCC (FK) 20 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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