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Data Device Corporation
105 Wilbur Place
Bohemia, New York 11716
631-567-5600 Fax: 631-567-7358
www.ddc-web.com
FOR MORE INFORMATION CONTACT:
Technical Support:
1-800-DDC-5757 ext. 7771
FEATURES
Complete Integrated Remote Terminal
Including:
Dual Low-Power 3.3V or 5.0V
Transceivers
Complete RT Protocol Logic
Supports MIL-STD-1553A/B Notice 2,
STANAG-3838 RT, and
MIL-STD-1760 Stores Management
World’s Smallest CQFP SSRT
80-Pin Ceramic Flat Pack or Gull Wing
Package
3.3V Logic Power
Meets 1553A/McAir Response Time
Requirements
Internal FIFO for Burst Mode Capability on
Receive Data
16-bit DMA Interface
Auto Configuration Capability
Comprehensive Built-In Self-Test
Direct Interface to Simple (Processorless)
Systems
Available with Full Military Temperature
Range and Screening
Selectable Input Clock:
10, 12, 16, or 20 MHz
DESCRIPTION
The BU-64703 Simple System RT Mark3 (SSRT Mark3) MIL-STD-
1553 terminal provides a complete interface between a simple sys-
tem and a MIL-STD-1553 bus. The SSRT Mark3 can be powered
entirely by 3.3 volts, thus eliminating the need for a 5V power supply.
This terminal integrates dual transceiver, protocol logic, and a FIFO
memory for received messages in an extremely small, 0.88 inch
square 0.130” max height ceramic package. The gull wing package
with a “toe-to-toe” maximum dimension of 1.110 inches enables its
use in applications where PC board space is at a premium. The SSRT
Mark3 provides multi-protocol support of MIL-STD-1553A/B, MIL-
STD-1760, McAir, and STANAG-3838.
The SSRT Mark3's transceivers are completely monolithic, require
only a +3.3V supply (+5.0V available), and consume low power. The
internal architecture is identical to that of the original BU-
61703/61705 Simple System RT (SSRT). There are versions of the
Simple System RT Mark3 available with transceivers trimmed for
MIL-STD-1760 compliance, or compatible to McAir standards. The
SSRT Mark3 can operate with a choice of clock frequencies at 10, 12,
16, or 20 MHz.
The SSRT Mark3 incorporates a Built-In-Test (BIT). This BIT, which is
processed following power turn-on or after receipt of an Initiate Self-
Test Mode command, provides a comprehensive test of the SSRT
Mark3's encoders, decoders, protocol, transmitter watchdog timer,
and protocol section. The SSRT Mark3 also includes an auto-config-
uration feature.
The SSRT Mark3 is ideal for stores and other simple systems that do
not require a microprocessor. To streamline the interface to simple
systems, the SSRT Mark3 includes an internal 32-word FIFO for
received data words. This serves to ensure that only complete, con-
sistent blocks of validated data words are transferred to a system.
2003 Data Device Corporation
BU-64703
SIMPLE SYSTEM RT Mark3
(SSRT Mark3)
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