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Enhanced Bit Rate-1553 BC/RT/MT PC104 Card

Discontinued Product. Please contact the factory for the latest replacement.


Part Number(s): BU-65580Cx, BU-65581Cx
Package: PC/104 CARD
Lead Free Information: B

DDC's BU-65580/81CX Series of PC/104 cards provide a complete COTS solution for interfacing between an embedded PC/104 bus and one to four Enhanced Bit Rate - 1553 Channel(s) with supporting CANBus interface(s), while also providing an optional MIL-STD-1553 dual redundant interface. Enhanced Bit Rate - 1553 (EBR-1553) is a 10Mbps data bus protocol based on the familiar MIL-STD-1553. The card’s two addressing modes serve to provide compatibility with both Intel and Motorola processor platforms.

The BU-65580/81CX includes one to four channel(s) of EBR-1553. The card’s advanced Bus Controller (BC) architecture is software compatible with DDC's ACE-Core Software for VxWorks or DOS. This architecture provides a high degree of flexibility and autonomy. This includes methods to control message scheduling, the means to minimize host overhead for asynchronous message insertion, the ability to facilitate bulk data transfers and double buffering, and support for various message retry strategies. The BC architecture also provides flexibility for data logging and fault reporting.

The card's Remote Terminal (RT) architecture provides a great deal of flexibility. The choice of RT data buffering and interrupt options provides robust support for synchronous and asynchronous messaging, while ensuring data sample consistency and supporting bulk data transfers.

The BU-65580/81CX Series cards also include one to four supporting CANBus interface(s) for MMSI EBR-1553 serial RT addressing and a 12-bit bi-directional discrete I/O port. The BU-65581CX adds an optional MIL-STD-1553 dual redundant interface.


  • Embedded Systems
  • Miniature Munitions/Store Interface (MMSI)
  • Upgrade Path From MIL-STD-1553 to Higher Speed EBR-1553
  • Bridging MIL-STD-1553 to MMSI EBR-1553


  • 16-bit Card per PC/104 Version 2.4
  • (1) to (4) EBR-1553 Channels
  • MMSI Serial Addressing Capability with Supporting CANBus Interface(s)
  • Optional Dual Redundant MIL-STD- 1553 Interface (BU-65581CX)
  • Convection Cooled with Extended Temperature Range Available
  • Enhanced Bit Rate 1553 RT-only or BC/RT/MT Architecture
  • 128K-word RAM
  • Choice of Segmented or Flat Addressing Modes
  • Highly Autonomous Bus Controller Architecture
  • RT Buffering Options
  • Selective Message Monitor
  • Supports PC/104 Interrupts
  • Free DOS and VxWorks® Software Library and Drivers



 Product Brief

Enhanced Bit Rate 1553 PC/104 Card


Enhanced Bit Rate-1553 BC/RT/MT PC/104 Card


Hardware Manual for the BU-65580/81 CX EBR/1553 PC-104 Series Interface Card

 Application Note

#40 MIL-STD-1553 Introduction to Enhanced Bit Rate 1553

#48 DDC MIL-STD-1553 Rate Group

Lightning Protection for Discrete Logic I/O

 Generic Document

DDC Corporate Overview

DDC Product Catalog

PC/104 Capabilities Brochure

DDC Custom Solutions Brochure


BU-65580/1Cx Enhanced Bit Rate-1553 BC/RT/MT PC104 Card Errata



Description: 32-Bit RTL and Drivers (Required for AMPOL support)
Operating System: Win NT/2000/XP
Rev: 5.4.6 [icon] 5.4.6
File Size: 10 MB

Description: 32-Bit ACE Menu
Operating System: Win 95/98/NT
Rev: 3.6.2 [icon] 3.6.2
File Size: 2 MB

Description: 32-Bit ACE Menu
Operating System: Win 2000/XP
Rev: 3.6.6 [icon] 3.6.6
File Size: 6 MB

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