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參數資料
| 型號： | HI-8788PQI |
| 廠商： | HOLT INTEGRATED CIRCUITS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | ARINC INTERFACE DEVICE 16-BIT PARALLEL DATA CONVERTED 429&561 SERIAL DATA OUT |
| 中文描述： | 1 CHANNEL(S), SERIAL COMM CONTROLLER, PQFP32 |
| 封裝： | PLASTIC, QFP-32 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 135K |
| 代理商： | HI-8788PQI |
HI-8787, HI-8788
DESCRIPTION
FEATURES
PIN CONFIGURATION
The HI-8787 and HI-8788 are system components for
interfacing 16 bit parallel data to an ARINC 429 bus. They
combine logicand line driver on one chip.TheHI-8787 has
an output resistance of 37.5 ohms, and the HI-8788 has
output resistance of 10 ohms to facilitate external lightning
protection circuitry.
The technology is analog/digital
CMOS.
Both productsofferhighspeeddatabustransactionsintoa
buffer register.
After loading 2 16-bit words, data is
automaticallytransferredandtransmitted. Thedatarateis
equal to the clock rate. Parity can be enabled in the 32nd
bit. Reset is used to initialize the logic upon startup. Word
gapsareautomaticallysent.
The part requires +/- 10 volt supplies in addition to a 5 volt
supply.
Automatically converts 16 bit parallel data
toARINC429or561data
Highspeeddatabusinterface
On-chiplinedriver
AvailableinsmallTQFPpackage
Militaryprocessingoptions
l
l
l
l
l
32-Pin Plastic TQFP package
January 2001
(DS8787 Rev. B)
01/01
24 - TXBOUT
23 - TXAOUT
22 - V-
21 - PARITY ENB
20 - XMT RDY
19 - XMIT CLK
18 -
17 -
WRITE
RESET
D4 - 1
N/C - 2
D5 - 3
D6 - 4
D7 - 5
D8 - 6
D9 - 7
D10 - 8
HI-8787PQI
HI-8787PQT
HI-8788PQI
&
HI-8788PQT
HOLT INTEGRATED CIRCUITS
1
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