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PRELIMINARY DATA SHEET
BU-64703
®
SIMPLE SYSTEM RT Mark3
(SSRT Mark3)
FEATURES
• Complete Integrated Remote Terminal
Including:
•All 3.3Volt Terminal (No Other Power
Supplies Are Required)
•Dual Low-Power 3.3V Only Transceivers
•Complete RT Protocol Logic
• Supports MIL-STD-1553A/B Notice 2,
STANAG-3838 RT, and
MIL-STD-1760 Stores Management
• 0.88” X 0.88”, 0.130”, Max Height CQFP
• 80-Pin Ceramic Flatpack or Gullwing
Package
DESCRIPTION
• 3.3V Logic Power
• Meets 1553A/McAir Response Time
Requirements
The BU-64703 Simple System RT Mark3 (SSRT Mark3) MIL-STD-
1553 terminals provide a complete interface between a simple sys-
tem and a MIL-STD-1553 bus. The SSRT Mark3 is powered entirely
by 3.3 volts, thus eliminating the need for a 5V power supply. This ter-
minal integrates dual transceiver, protocol logic, and a FIFO memory
for received messages in a 0.88 inch square ceramic package. The
gull wing package with a “toe-to-toe” maximum dimension of 1.13
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.
• 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
The SSRT Mark3's transceivers are completely monolithic, require
only a +3.3V supply, and consume low power. The internal architec-
ture 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 compli-
ance, or compatible to McAir standards. The SSRT Mark3 can oper-
ate with a choice of clock frequencies of 10, 12, 16, or 20 MHz.
• Available with Full Military Temperature
Range and Screening
• Selectable Input Clock:
10, 12, 16, or 20 MHz
The SSRT Mark3 incorporates a built-in self-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 watch-
dog timer, and protocol section. The SSRT Mark3 also includes an
auto-configuration feature.
This Preliminary data sheet provides detailed
functional capabilities for product currently in pro-
totype production. These specifications are being
provided to allow for electrical design, layout and
operation.
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.
FOR MORE INFORMATION CONTACT:
Technical Support:
1-800-DDC-5757 ext. 7234
Data Device Corporation
105 Wilbur Place
Bohemia, New York 11716
631-567-5600 Fax: 631-567-7358
www.ddc-web.com
©
2003 Data Device Corporation