HI-1575 Datasheet PDF - Holt Integrated Circuits
| Part Number | HI-1575 | |
| Description | 3.3V Dual Transceivers | |
| Manufacturers | Holt Integrated Circuits | |
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There is a preview and HI-1575 download ( pdf file ) link at the bottom of this page. Total 12 Pages | ||
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February 2006
HI-1575
MIL-STD-1553 3.3V Dual Transceivers
with Integrated Encoder / Decoders
DESCRIPTION
The HI-1575 is a low power CMOS dual transceiver with
on-chip Manchester II Encoder and dual Decoder
designed to meet the requirements of the MIL-STD-1553
specification. The part acts as a "Smart Transceiver",
allowing users to transmit and receive properly encoded
MIL-STD-1553 Command and Data words between a
16-bit host processor and dual MIL-STD-1553 data
buses.
A single write cycle is used to transfer a word to the
HI-1575, which encodes the data, adds the selected Sync
and Parity bits, and transmits the word on the chosen
MIL-STD-1553 data bus. Complete MIL-STD-1553
messages may be transmitted by executing multiple write
cycles to the device.
Activity on both MIL-STD-1553 data buses is continuously
monitored. When the HI-1575 detects a properly encoded
word, a hardware interrupt is generated and the
information is decoded and stored in one of two internal
registers, which may then be read by the host processor.
Bits in the internal Status & Mode Register indicate on
which bus the word was received and whether the word
had a Data or Command Sync.
PIN CONFIGURATIONS
-1
RCVA 2
BUSA 3
BUSA 4
VDD 5
BUSB 6
BUSB 7
RCVB 8
REG 9
- 10
1575PCI
1575PCT
30 -
29 D5
28 D6
27 D7
26 GND
25 D8
24 D9
23 D10
22 D11
21 -
40 Pin Plastic 6mm x 6mm
Chip-scale package
FEATURES
! Compliant to MIL-STD-1553A & B
! 3.3V single supply operation
! On-chip Encoder and Dual Decoder
! Small footprint available in 32-pin plastic
TQFP package
! Less than 0.5W maximum power dissipation
! 6 mm x 6 mm 40-pin plastic chip-scale
package option
! Military processing options
RCVA - 1
BUSA - 2
BUSA - 3
VDD - 4
BUSB - 5
BUSB - 6
RCVB - 7
REG - 8
HI-1575PQI
&
HI-1575PQT
24 - D5
23 - D6
22 - D7
21 - GND
20 - D8
19 - D9
18 - D10
17 - D11
32 Pin TQFP package
(DS1575 Rev.B)
HOLT INTEGRATED CIRCUITS
www.holtic.com
02/06
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HI-1575
Write TX,
(MIL-STD-1553 Status word)
D15 - D0
TXDATA
DON’T CARE
Write TX,
(MIL-STD-1553 Data word)
Read SAM,
check SENDDATA=1
SAM
TXDATA
R/W DON’T CARE
CHA/CHB
VALID
DON’T CARE
VALID
SYNC
DON’T CARE
REG
DON’T CARE
STRB
BUSA (B)
SYNC SYNC 15 14 13
3 3 2 1 0 P SYNC SYNC 15
FIGURE 3. EXAMPLE TRANSMIT OPERATION
Read SAM
Read RXA or RXB,
(MIL-STD-1553 Data word)
BUSA (B)
RCVA (B)
R/W
CHA/CHB
REG
STRB
D15 - D0
SYNC
SYNC SYNC 15 14 13 12
2 1 0 P SYNC SYNC 15 14 13 12
DON’T CARE
DON’T CARE
DON’T CARE
VALID
SAM
FIGURE 4. EXAMPLE RECEIVE OPERATION
CHAN OR CHA/CHB
0
1
X
REG
0
0
1
Register
Receiver A Data (RXA)
Receiver B Data (RXB)
Status & Mode Register (SAM)
FIGURE 5. HI-1575 REGISTER MAP
RXA (B)
SYNC
HOLT INTEGRATED CIRCUITS
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HI-1575 electronic component. |
| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HI-1575.PDF Datasheet ] | |
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