Standard Products
UT63M1XX MIL-STD-1553A/B Bus Transceiver
Data Sheet
Sept. 1999
FEATURES
INTRODUCTION
q Full conformance to MIL-STD-1553A and 1553B
q Completely monolithic bipolar technology
q Low power consumption
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’s 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.
q Fit and functionally compatible to industry standard 631XX
series
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.
q Idle low encoding version
q Flexible power supply voltages: V =+5V, V =-12V or
-
CC
EE
15V, and V
=+5V to +12V or +5V to +15V
CCA
q Full military operating temperature range, -55°C to +125°C,
screened to QML Q or QML V requirements
RXEN
q Standard Military Drawing available
RXOUT
FILTER
RXIN
FILTER
and
RXIN
TO DECODER
RXOUT
LIMITER
THRESHOLD
REFERENCE
DRIVERS
TXOUT
TXOUT
TXIN
COMPARE
FROM ENCODER
TXIN
TXIHB
Figure 1. Functional Block Diagram
1