Standard Products
UT63M14x MIL-STD-1553A/B Bus Transceiver
Data Sheet
Sept. 1999
FEATURES
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5-volt only operation (+10%)
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Completely monolithic bipolar technology
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Fit and functionally compatible to industry standard
transceiver
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Idle low transmitter inputs and receiver outputs
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Dual-channel 50-mil center 24-lead Flatpack
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Dual-channel 100-mil center 36-pin DIP
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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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Radiation hardened to 1.0E6 rads(Si)
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Supports MIL-STD-1760 (UT63M145) and MIL-STD-1553
(UT63M147)
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Standard Microcircuit Drawing (SMD) 5962-93226
available
INTRODUCTION
The monolithic UT63M14x Transceivers are complete
transmitter and receiver pairs for MIL-STD-1553A and 1553B
applications. Encoder and decoder interfaces are idle low.
The receiver section of the UT63M14x 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.
RXEN
RXOUT
RXIN
RXIN
F ILTER
and
LIMITER
THRESHOLD
REFERENCE
DRIVERS
TXOUT
COMPARE
TXOUT
TXIN
FROM ENCODER
TXIN
F ILTER
TO DECODER
RXOUT
TXIHB
Figure 1. Functional Block Diagram
1