CD74HC299

ACTIVO

Registro de desplazamiento universal de 8 bits CMOS Logic de alta velocidad con salidas de 3 estados

Detalles del producto

Configuration Universal Bits (#) 8 Technology family HC Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Input type Standard CMOS Output type 3-State Clock frequency (MHz) 24 IOL (max) (mA) 5.2 IOH (max) (mA) -5.2 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
Configuration Universal Bits (#) 8 Technology family HC Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Input type Standard CMOS Output type 3-State Clock frequency (MHz) 24 IOL (max) (mA) 5.2 IOH (max) (mA) -5.2 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
PDIP (N) 20 228.702 mm² 24.33 x 9.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3
  • Buffered Inputs
  • Four Operating Modes: Shift Left, Shift Right, Load and Store
  • Can be Cascaded for N-Bit Word Lengths
  • I/O0 – I/O7 Bus Drive Capability and Three-State for Bus Oriented Applications
  • Typical fMAX = 50MHz at VCC =5V, CL = 15pF, TA = 25°C
  • Fanout (Over Temperature Range)
    • Standard Outputs. . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . –55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor

  • Buffered Inputs
  • Four Operating Modes: Shift Left, Shift Right, Load and Store
  • Can be Cascaded for N-Bit Word Lengths
  • I/O0 – I/O7 Bus Drive Capability and Three-State for Bus Oriented Applications
  • Typical fMAX = 50MHz at VCC =5V, CL = 15pF, TA = 25°C
  • Fanout (Over Temperature Range)
    • Standard Outputs. . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . –55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor

The ’HC259 and ’HCT299 are 8-bit shift/storage registers with three-state bus interface capability. The register has four synchronous-operating modes controlled by the two select inputs as shown in the mode select (S0, S1) table. The mode select, the serial data (DS0, DS7) and the parallel data (I/O0 – I/O7) respond only to the low-to-high transition of the clock (CP) pulse. S0, S1 and data inputs must be one set-up time prior to the clock positive transition.

The Master Reset (MR)\ is an asynchronous active low input. When MR\ output is low, the register is cleared regardless of the status of all other inputs. The register can be expanded by cascading same units by tying the serial output (Q0) to the serial data (DS7) input of the preceding register, and tying the serial output (Q7) to the serial data (DS0) input of the following register. Recirculating the (n x 8) bits is accomplished by tying the Q7 of the last stage to the DS0 of the first stage.

The three-state input/output I(/O) port has three modes of operation:

1. Both output enable (OE1\ and OE2\) inputs are low and S0 or S1 or both are low, the data in the register is presented at the eight outputs.

2. When both S0 and S1 are high, I/O terminals are in the high impedance state but being input ports, ready for par-allel data to be loaded into eight registers with one clock transition regardless of the status of OE1\ and OE2\.

3. Either one of the two output enable inputs being high will force I/O terminals to be in the off-state. It is noted that each I/O terminal is a three-state output and a CMOS buffer input.

The ’HC259 and ’HCT299 are 8-bit shift/storage registers with three-state bus interface capability. The register has four synchronous-operating modes controlled by the two select inputs as shown in the mode select (S0, S1) table. The mode select, the serial data (DS0, DS7) and the parallel data (I/O0 – I/O7) respond only to the low-to-high transition of the clock (CP) pulse. S0, S1 and data inputs must be one set-up time prior to the clock positive transition.

The Master Reset (MR)\ is an asynchronous active low input. When MR\ output is low, the register is cleared regardless of the status of all other inputs. The register can be expanded by cascading same units by tying the serial output (Q0) to the serial data (DS7) input of the preceding register, and tying the serial output (Q7) to the serial data (DS0) input of the following register. Recirculating the (n x 8) bits is accomplished by tying the Q7 of the last stage to the DS0 of the first stage.

The three-state input/output I(/O) port has three modes of operation:

1. Both output enable (OE1\ and OE2\) inputs are low and S0 or S1 or both are low, the data in the register is presented at the eight outputs.

2. When both S0 and S1 are high, I/O terminals are in the high impedance state but being input ports, ready for par-allel data to be loaded into eight registers with one clock transition regardless of the status of OE1\ and OE2\.

3. Either one of the two output enable inputs being high will force I/O terminals to be in the off-state. It is noted that each I/O terminal is a three-state output and a CMOS buffer input.

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Documentación técnica

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Tipo Título Fecha
* Data sheet CD54HC299, CD74HC299, CD54HCT299, CD74HCT299 datasheet (Rev. C) 16 abr 2003
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 15 dic 2022
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 jul 2021
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
User guide Signal Switch Data Book (Rev. A) 14 nov 2003
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 ago 2002
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 jun 1997
Application note Designing With Logic (Rev. C) 01 jun 1997
Application note Input and Output Characteristics of Digital Integrated Circuits 01 oct 1996
Application note Live Insertion 01 oct 1996
Application note SN54/74HCT CMOS Logic Family Applications and Restrictions 01 may 1996
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 01 abr 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
PDIP (N) 20 Ultra Librarian
SOIC (DW) 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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