Standard Products
UT63M1XX MIL-STD-1553A/B Bus Transceiver
Data Sheet
Sept. 1999
FEATURES
q
Full conformance to MIL-STD-1553A and 1553B
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Completely monolithic bipolar technology
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Low power consumption
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Fit and functionally compatible to industry standard 631XX
series
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Idle low encoding version
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Flexible power supply voltages: V
CC
=+5V, V
EE
=-12V or
15V, and V
CCA
=+5V to +12V or +5V to +15V
-
INTRODUCTION
The monolithic UT63M1XX Transceivers are complete
transmitter and receiver pairs conforming fully to MIL-STD-
1553A and 1553B. Encoder and decoder interfaces are idle low.
UTMC鈥檚 advanced bipolar technology allows the positive
analog power to range from +5V to +12V or +5V to +15V,
providing more flexibility in system power supply design.
The receiver section of the UT63M1XX series accepts biphase-
modulated Manchester II bipolar data from a MIL-STD-1553
data bus and produces TTL-level signal data at its RXOUT and
RXOUT outputs. An external RXEN input enables or disables
the receiver outputs.
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Full military operating temperature range, -55擄C to +125擄C,
screened to QML Q or QML V requirements
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Standard Military Drawing available
RXEN
RXOUT
RXIN
RXIN
FILTER
and
LIMITER
THRESHOLD
REFERENCE
DRIVERS
TXOUT
COMPARE
TXOUT
TXIN
FROM ENCODER
TXIN
FILTER
TO DECODER
RXOUT
TXIHB
Figure 1. Functional Block Diagram
1