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Número de pieza | CT25421111 | |
Descripción | CT 2542 / CT2543 Dual Redundant Remote Terminal FOR MIL-STD-1553B | |
Fabricantes | Aeroflex Circuit Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de CT25421111 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
No Preview Available ! CT 2542 / CT2543
Dual Redundant Remote Terminal
FOR MIL-STD-1553B
Features
• CT2542 Replaces DDC BUS-65142 and BUS-65144
• CT2543 Replaces DDC BUS-65143 and BUS-65145
• Functions as a Complete Remote Terminal Unit
• Supports 13 Mode Codes, Illegalization of Codes Allowed
• Transfers Data with DMA Type Handshaking
• Latched Outputs for Command Word and Word Count
• 14 Bit Built-ln-Test Word Register
• 4 Error Flag Outputs
• Advanced Low Power VLSI Technology
• DESC SMD# 5962–89798 Approved
CIRCUIT TECHNOLOGY
www.aeroflex.com
FLEX LA
ISO
9001
CE R T I F I E D
General Description
The CT2542 contains 2 transceivers, 2 encoder/decoders, bit processors and complete Remote Terminal (RT)
logic. The device is constructed using Aeroflex advanced VLSI custom chip and hybrid technology. It
functions as a complete dual redundant MIL-STD-1553B RT Unit supporting all 13 mode codes for dual
redundant operation. The CT2542 is a pin-for-pin functional equivalent of the DDC BUS-65142/144 and
performs parallel data transfers with a DMA type handshake. Multiple error flag outputs and host access to
many of the RT Status Word bits are just some of the features that make this part ideal for many RT
applications. The unit has an operating range of -55°C to + 125°C. Aeroflex is a MIL-PRF-38534 Certified
Manufacturer. See "Ordering Information" (last sheet) for CT2543.
DATA BUS A
DATA BUS B
DUAL
TRANSCEIVER
ENCODER/
DECODER
ENCODER/
DECODER
MIL-STD-1553B
PROTOCOL
AND
BIT
PROCESSING
LOGIC
I/O
INTERFACE
DB0-DB15
A0-A11
ERROR FLAG
TIMING FLAGS
STATUS BITS
Figure 1 – Functional Block Diagram
eroflex Circuit Technology – Data Bus Modules For The Future © SCDCT2542 REV E 8/23/00
1 page Transformer Coupled Stubs
DATA TX/RX
STUB
2:1
ISOLATION
1 : 1.41 55Ω
70Ω
2542
CA
DATA TX/RX
55Ω
Zoi
VCMT = ±10 VPK
DC to 2MHZ
Direct Coupled Stubs
DATA TX/RX
STUB
1.4 :1
55Ω
2542
B
DATA TX/RX
55Ω
Zoi
NOTES:
1. Point C, Vo = 18 Vpp Minimum
2. Transformer self Impedance ≥ 3KΩ at 1MHz
3. VCMT for transformer coupled stubs
VCMD for direct coupled stubs
A
35Ω 35Ω
+
±VCMD
-
Figure 2 – Typical Bus Coupling
Aeroflex Circuit Technology
4 SCDCT2542 REV E 8/23/00 Plainview NY (516) 694-6700
5 Page STATEN
GBR
Receive Only
375ns
DTSTB
DB0 - DB15
125ns
125ns
75ns
TRISTATE
STATUS
TRISTATE
75ns
NOTE:
BUFFENA
1. R/W = LOGIC 0
Figure 7 – Timing Diagram, Status Word Transfer
BITEN
DTSTB
DB0 - DB15
BUFFENA
125ns
375 ns
125ns
75ns
TRISTATE
BIT WORD
TRISTATE
75ns
NOTE:
1. R/W = LOGIC 0
Aeroflex Circuit Technology
Figure 8 – Timing Diagram, Bit Word Transfer
10 SCDCT2542 REV E 8/23/00 Plainview NY (516) 694-6700
11 Page |
Páginas | Total 17 Páginas | |
PDF Descargar | [ Datasheet CT25421111.PDF ] |
Número de pieza | Descripción | Fabricantes |
CT25421111 | CT 2542 / CT2543 Dual Redundant Remote Terminal FOR MIL-STD-1553B | Aeroflex Circuit Technology |
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