BU-61689

Features:

* 5 Volt Only
* Fully Integrated MIL-STD-1553 A/B STANAG 3838 Compliant Terminals
* One-Square-Inch Package
* Smallest BC/RT/MT In The Industry
* Hardware and Software Compatible with BU-61580 ACE Series
* Flexible Processor/Memory Interface
* Bootable RT* Option
* 4K x 16 or 64K x 16* Shared RAM
* Automatic BC Retries
* Programmable BC Gap Times
* Programmable Illegalization
* Simultaneous RT/Monitor Mode
* Operates From 10*/12 /16 / 20* MHz Clock


Specifications

PARAMETER	MIN	TYP	MAX	UNITS
Supply Voltage Logic +5 V Transceiver +5 V (Note 12) Logic Voltage Input Range	-0.3 -0.3 -0.3		6.0 7.0 VCC+0.3	V V V

Description

The BU-61588 Mini-ACE and BU-61688 Mini-ACE Plus* integrates two 5-volt-only transceivers, protocol, memory management, processor interface logic, and 4K x 16, or 64K x 16* words of RAM in a choice of pin grid array (PGA), quad flat pack or gull lead packages.The Mini-ACE BU-61689 is packaged in a 1.0 square inch, low profile, cofired ceramic multi-chip-module (MCM) package making it the smallest integrated MIL-STD-1553 BC/RT/MT in the industry.

The Mini-ACE BU-61689 provides full compatibility to DDC's BU-61580 and BU-65170 Advanced Communication Engine (ACE).As such, the Mini-ACE includes all the hardware and software architectural features of the ACE.

The Mini-ACE BU-61689 contains internal address latches and bidirectional data buffers to provide a direct interface to a host processor bus.The memory management scheme for RT mode BU-61689  provides three data structures for buffering data These structures, combined with the Mini-ACE's extensive interrupt capability, serve to ensure data consistency while off-loading the host processor.

The Mini-ACE Plus* BU-61689 can optionally boot-up as a RT with the Busy bit set for 1760 applications. The  Mini-ACE BC mode implements several features aimed at providing an efficient real-time software interface to the host processor including automatic retries, programmable intermessage gap times, automatic frame repetition, and flexible interrupt generation.

The advanced architectural features of the Mini-ACE BU-61689, combined with its small size and high reliability, make it an ideal choice for demanding military and industria processor-to-1553 applications.