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HD1-6408-9 Datasheet

  • HD1-6408-9

  • CMOS Asynchronous Serial Manchester Adapter (ASMA)

  • 61.20KB

  • 11頁

  • INTERSIL   INTERSIL

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HD-6408
March 1997
CMOS Asynchronous Serial
Manchester Adapter (ASMA)
Description
The HD-6408 is a CMOS/LSI Manchester Encoder/Decoder
for creating a very high speed asynchronous serial data bus.
The Encoder converts serial NRZ data (typically from a shift
register) to Manchester II encoded data, adding a sync pulse
and parity bit. The Decoder recognizes this sync pulse and
identi鏗乪s it as a Command Sync or a Data Sync. The data is
then decoded and shifted out in NRZ code (typically into a
shift register). Finally, the parity bit is checked. If there were
no Manchester or parity errors the Decoder responds with a
valid word signal. The Decoder puts the Manchester code to
full use to provide clock recovery and excellent noise immu-
nity at these very high speeds.
The HD-6408 can be used in many commercial applications
such as security systems, environmental control systems,
serial data links and many others. It utilizes a single 12 x
clock and achieves data rates of up to one million bits per
second with a very minimum overhead of only 4 bits out of
20, leaving 16 bits for data.
Features
鈥?Low Bit Error Rate
鈥?Data Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1MBit/s
鈥?Sync Identi鏗乧ation and Lock-In
鈥?Clock Recovery
鈥?Manchester II Encoder, Decoder
鈥?Separate Encode and Decode
鈥?Low Operating Power . . . . . . . . . . . . . . . . . 50mW at 5V
鈥?Single Power Supply
鈥?24 Lead Package
Ordering Information
PACKAGE
PDIP
CERDIP
TEMP. RANGE
-40
o
C to +85
o
C
-40
o
C to +85
o
C
PART
NUMBER
HD3-6408-9
HD1-6408-9
PKG.
NO.
E24.6
E24.6
Pinout
HD-6408 (DIP)
TOP VIEW
VW 1
ESC 2
TD 3
SDO 4
DC 5
BZI 6
BOI 7
UDI 8
DSC 9
CDS 10
DR 11
GND 12
24 V
CC
23 EC
22 SCI
21 SD
20 SS
19 EE
18 SDI
17 BOO
16 OI
15 BZO
14 DBS
13 MR
d
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
2952.1
5-1

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