MC33781 | Quad DSI 2.02 Leader, Differential Drive | NXP Semiconductors

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Quad DSI 2.02 Leader, Differential Drive, Freq Spread

MC33781 Active

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The NXP® MC33781 is a leader device for four differential DSI 2.02 buses that contains the logic to interface the buses to a standard SPI port and the analog circuitry to drive data and power over the bus, as well as receive data from the remote follower devices.

  • The differential mode 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 frequencies, reducing the energy in any single frequency
  • Tools: Limited Evaluation boards available; contact sales

Block Diagram

Freescale MC33781 Network Transceivers Block Diagram

NXP<sup>&#174;</sup> MC33781 Network Transceivers Block DiagramV
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Features

  • Four independent differential DSI (DBUS) channels
  • Dual SPI interface
  • Enhanced bus fault performance
  • Automatic message cyclical redundancy checking (CRC) generation and checking for each channel
  • Enhanced register set with addressable buffer allows queuing of 4 independent follower commands at one time for each channel
  • 8- to 16-Bit messages with 0- to 8-Bit CRC
  • Independent frequency spreading for each channel
  • Pseudo bus switch feature on channel 0

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MCZ33781EK
Data Sheet

Active

comm transceivers

200.0

9

25

4.75

5.25

-40 to 90

N true 0 PSPMC33781en 4 Application Note Application Note t789 2 Data Sheet Data Sheet t520 1 Fact Sheet Fact Sheet t523 1 en_US 1 1 5.0 English The 33781 is a leader device for four differential DSI 2.02 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 33xxx 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 m 1220976641786708288469 PSP 1.2 MB None None documents None 1220976641786708288469 /docs/en/data-sheet/MC33781.pdf 1152008 /docs/en/data-sheet/MC33781.pdf MC33781 N N 2016-10-31 MC33781, Quad DSI 2.02 Leader with Differential Drive and Frequency Spreading /docs/en/data-sheet/MC33781.pdf /docs/en/data-sheet/MC33781.pdf Data Sheet N Y 980000996212993340 2022-12-07 pdf N en Nov 15, 2009 Data Sheet t520 Data Sheet Data Sheet Y N MC33781, Quad DSI 2.02 Leader with Differential Drive and Frequency Spreading false en_US en Application Note Application Note 2 2 3.0 English This application note provides guidelines for handling and assembly of SOIC package during Printed Circuit Board (PCB) assembly. 10jsBvfc PSP 3.5 MB None None documents None 10jsBvfc /docs/en/application-note/AN2409.pdf 3536520 /docs/en/application-note/AN2409.pdf AN2409 documents N N 2016-10-31 AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note /docs/en/application-note/AN2409.pdf /docs/en/application-note/AN2409.pdf Application Note N 645036621402383989 2024-01-19 pdf N en Oct 21, 2014 645036621402383989 Application Note Y N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note 3 1.0 English The MC33781 and MC33784 together constitute NXP Semiconductors's implementation of the Distributed System Interface (DSI) Bus Standard, Version 2.02. 1225311007711718167766 PSP 1.0 MB None None documents None 1225311007711718167766 /docs/en/application-note/AN3670.pdf 1013814 /docs/en/application-note/AN3670.pdf AN3670 documents N N 2016-10-31 AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 /docs/en/application-note/AN3670.pdf /docs/en/application-note/AN3670.pdf Application Note N 645036621402383989 2024-01-19 pdf N en Oct 29, 2008 645036621402383989 Application Note Y N AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 Fact Sheet Fact Sheet 1 4 9 English AIRBAGFS: Freescale is a leading semiconductor supplier for next-generation airbag applications with custom and standard microcontrollers (MCU), analog and sensor products. We offer solutions for point-to-point and bus-based satellite interface architectures with the established distributed system interface (DSI) as well as the emerging peripheral sensor interface (PSI5) architectures. 1208540600963727452987 PSP 366.7 KB None None documents None 1208540600963727452987 /docs/en/fact-sheet/AIRBAGFS.pdf 366678 /docs/en/fact-sheet/AIRBAGFS.pdf AIRBAGFS documents N N 2016-10-31 Automotive Airbag Safety Systems - Fact Sheet /docs/en/fact-sheet/AIRBAGFS.pdf /docs/en/fact-sheet/AIRBAGFS.pdf Fact Sheet N 736675474163315314 2025-02-24 pdf N en Sep 12, 2016 736675474163315314 Fact Sheet Y N Automotive Airbag Safety Systems - Fact Sheet false 0 MC33781 downloads en true 1 Y PSP Application Note 2 /docs/en/application-note/AN2409.pdf 2016-10-31 10jsBvfc PSP 2 Oct 21, 2014 Application Note This application note provides guidelines for handling and assembly of SOIC package during Printed Circuit Board (PCB) assembly. None /docs/en/application-note/AN2409.pdf English documents 3536520 None 645036621402383989 2024-01-19 N /docs/en/application-note/AN2409.pdf AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note /docs/en/application-note/AN2409.pdf documents 645036621402383989 Application Note N en None Y pdf 3.0 N N AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note 3.5 MB AN2409 N 10jsBvfc /docs/en/application-note/AN3670.pdf 2016-10-31 1225311007711718167766 PSP 3 Oct 29, 2008 Application Note The MC33781 and MC33784 together constitute NXP Semiconductors's implementation of the Distributed System Interface (DSI) Bus Standard, Version 2.02. None /docs/en/application-note/AN3670.pdf English documents 1013814 None 645036621402383989 2024-01-19 N /docs/en/application-note/AN3670.pdf AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 /docs/en/application-note/AN3670.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN3670, Implementing a DSI Network Using the MC33781 and the MC33784 1.0 MB AN3670 N 1225311007711718167766 Data Sheet 1 /docs/en/data-sheet/MC33781.pdf 2016-10-31 1220976641786708288469 PSP 1 Nov 15, 2009 Data Sheet Data Sheet The 33781 is a leader device for four differential DSI 2.02 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 33xxx 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 m None /docs/en/data-sheet/MC33781.pdf English 1152008 None Data Sheet 2022-12-07 N /docs/en/data-sheet/MC33781.pdf MC33781, Quad DSI 2.02 Leader with Differential Drive and Frequency Spreading /docs/en/data-sheet/MC33781.pdf documents 980000996212993340 Data Sheet N Y en None Y t520 pdf 5.0 N N MC33781, Quad DSI 2.02 Leader with Differential Drive and Frequency Spreading 1.2 MB MC33781 N 1220976641786708288469 Fact Sheet 1 /docs/en/fact-sheet/AIRBAGFS.pdf 2016-10-31 1208540600963727452987 PSP 4 Sep 12, 2016 Fact Sheet AIRBAGFS: Freescale is a leading semiconductor supplier for next-generation airbag applications with custom and standard microcontrollers (MCU), analog and sensor products. We offer solutions for point-to-point and bus-based satellite interface architectures with the established distributed system interface (DSI) as well as the emerging peripheral sensor interface (PSI5) architectures. None /docs/en/fact-sheet/AIRBAGFS.pdf English documents 366678 None 736675474163315314 2025-02-24 N /docs/en/fact-sheet/AIRBAGFS.pdf Automotive Airbag Safety Systems - Fact Sheet /docs/en/fact-sheet/AIRBAGFS.pdf documents 736675474163315314 Fact Sheet N en None Y pdf 9 N N Automotive Airbag Safety Systems - Fact Sheet 366.7 KB AIRBAGFS N 1208540600963727452987 true Y Products

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