Datasheet4U Logo Datasheet4U.com

MC33780 - Dual DBUS Master

📥 Download Datasheet

General Description

of each terminal can be found in the Functional Terminal Descriptions section beginning on page 13.

Overview

www.DataSheet4U.com Freescale Semiconductor Technical Data Document order number: MC33780 Rev 3.0, 5/2006 Dual DBUS Master with Differential Drive and Frequency Spreading The 33780 is a master device for two differential DBUS buses.

It contains the logic to interface the buses to a standard serial peripheral interface (SPI) port and the analog circuitry to drive data and power over the bus as well as receive data from the remote slave devices.

The differential mode of the 33780 generates lower electromagnetic interference (EMI) in situations where data rates and wiring make this a problem.

Frequency spreading further reduces interference by spreading the energy across many channels, reducing the energy in any single channel.

Key Features

  • Two Independent DBUS I/Os.
  • Common SPI Interface for All Operations.
  • Open-Drain Interrupt Output with Pull-up.
  • Maskable Interrupts for Send and Receive Data Status.
  • Automatic Message Cyclical Redundancy Checking (CRC) Generation and Checking.
  • Four-Stage Transmit and Receive Buffers.
  • 8- to 16-Bit Messages with 0- to 8-Bit CRC.
  • Independent Frequency Spreading for Each Channel.
  • Pb-Free Packaging Designated by Suffix Co.

More Datasheets from Freescale Semiconductor (now NXP Semiconductors)

Part Number Description
MC33784 DSI 2.02 Sensor Interface
MC33793A Distributed System Interface (DSI) Sensor Interface
MC33794 Electric Field Imaging Device
MC33797 Four Channel Squib Driver
MC33186 H-Bridge Driver
MC33285 Dual High-Side TMOS Driver
MC33397 Dual/Hex Low-Side Switch
MC33399 Local Interconnect Network (LIN) Physical Interface
MC33399PEF Local Interconnect Network (LIN) Physical Interface
MC33493A PLL Tuned UHF Transmitter