MAR28139NE Ver la hoja de datos (PDF) - Dynex Semiconductor

Número de pieza

componentes Descripción

Fabricante

MAR28139NE

OBDH Bus Terminal

Dynex Semiconductor 

MA28139

APPLICATION

ODBH BUS

CENTRAL TERMINAL

Bus Controller

CT DBI

OBT

UP TO A TOTAL OF 62 TERMINALS

OBT

IUB

DMUX

MPX

DMUX

ADC

Commands

Timing

Address

Digital

Data

Analogue

Data

REMOTE TERMINAL

OBT

DBU

RT DBI

RBI

RAM

µP

I/O

OBT

RT DBI

RBI

RAM

µP

I/O

INTELLIGENT TERMINAL

Figure 2: Application

PAYLOAD INTERFACES

The OBT converts the OBDH bus to an Internal User Bus,

and a Digital Bus Interface. The OBT can connect OBDH to

existing ESA standard payload interfaces such as the MSS

PIU (payload interface unit), ICU (intelligent control unit), SBC

(single board MIL-STD-1750 computer) or FTC (fault tolerant

computer).

The OBT and analogue components/transformers can be

integrated in the PIU, ICU, SBC, etc.

I-Bus

OBDH

R-Bus

ANALOGUE

HYBRID

OR

DISCRETE

CIRCUIT

BT-Bus

IUB

PIU

OBDH

BUS

TERMINAL

MA28139

PAYLOAD

µP

DBI

DMA

RBI

MA28138

AD-BUS

I/O

MEMORY

SBC

Figure 3: Payload Interface

2/34

PAYLOAD

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