www.cmac.com
The FC15539 is a complete data bus transmitter and
receiver hybrid, driven from a single 5V supply (12V
and 15V also available). The device conforms to MIL-
STD-1553B, and is screened to the requirements of
MIL-STD-883,BS9450 (CECC 63000) and MIL-PRF-38534
Class H (Military) or Class K (Space) as required.
›› Single rail operation
›› Low power dissipation
›› Third-order balanced receiver input filtering
›› Enhanced input logic tracking and fault protection
›› Short circuit protection of transmitter outputs
›› Available in DIL or flat-pack (surface mount)
›› Receiver output logic options for encoder/decoder
compatibilty
›› ITAR free - UK design and manufacture
MIL-STD-1553 SINGLE AND
DUAL-CHANNEL 5-VOLT TRANSCEIVERS
FC15539 Series
1
2
9
8
7
RXDATAIN
(29, 20)
NRXDATAIN
(30, 21)
TXDATAOUT
(1, 10)
NTXDATA
OUT
(2, 11)
BALANCED
FILTER
SIGNAL
LIMITING
BALANCED
COMPARATOR STAGE
OUTPUT LOGIC
DRIVERS
*CASE
(9)
*GND
(7, 16)
*GND
(31, 22)
VCC
(33, 24)
NRX DISABLE (6, 15)
INHIBIT
GENERATOR
OUTPUT CURRENT
DRIVERS
PULSE
OVERDURATION
TIMER
INPUT
LOGIC
DECODER
RXLOGICOUT
(5, 14)
NRXLOGICOUT
(8, 17)
TXINHIBIT
(34, 25)
TXLOGICIN
(35, 26)
NTXLOGICIN
(36, 27)
PULSE
SHAPING
No Connection to Pins:
4,5,6,11,12,13,14,17,19,24 (Single channel)
3,4,12,13,18,19,23,28,32 (Dual channel)
(A, B) = pin numbers (Dual channel)
A .. channel A
B .. channel B
3
18
20
15
16
10
21
22
23
x = pin number (Single channel)
* 'GND' and 'CASE' pins must be connected together externally
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