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HD6409 Datasheet

  • HD6409

  • CMOS Manchester Encoder-Decoder

  • 71.92KB

  • 12頁(yè)

  • INTERSIL   INTERSIL

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HD-6409
March 1997
CMOS Manchester Encoder-Decoder
Description
The HD-6409 Manchester Encoder-Decoder (MED) is a high
speed, low power device manufactured using self-aligned sil-
icon gate technology. The device is intended for use in serial
data communication, and can be operated in either of two
modes. In the converter mode, the MED converts Non
return-to-Zero code (NRZ) into Manchester code and
decodes Manchester code into Nonreturn-to-Zero code. For
serial data communication, Manchester code does not have
some of the de鏗乧iencies inherent in Nonreturn-to-Zero code.
For instance, use of the MED on a serial line eliminates DC
components, provides clock recovery, and gives a relatively
high degree of noise immunity. Because the MED converts
the most commonly used code (NRZ) to Manchester code,
the advantages of using Manchester code are easily realized
in a serial data link.
In the Repeater mode, the MED accepts Manchester code
input and reconstructs it with a recovered clock. This mini-
mizes the effects of noise on a serial data link. A digital
phase lock loop generates the recovered clock. A maximum
data rate of 1MHz requires only 50mW of power.
Manchester code is used in magnetic tape recording and in
鏗乥er optic communication, and generally is used where data
accuracy is imperative. Because it frames blocks of data, the
HD-6409 easily interfaces to protocol controllers.
Features
鈥?Converter or Repeater Mode
鈥?Independent Manchester Encoder and Decoder
Operation
鈥?Static to One Megabit/sec Data Rate Guaranteed
鈥?Low Bit Error Rate
鈥?Digital PLL Clock Recovery
鈥?On Chip Oscillator
鈥?Low Operating Power: 50mW Typical at +5V
鈥?Available in 20 Lead Dual-In-Line and 20 Pad LCC
Package
Ordering Information
PACKAGE
PDIP
SOIC
CERDIP
DESC
CLCC
DESC
TEMPERATURE
RANGE
-40
o
C to +85
o
C
-40
o
C to +85
o
C
-40
o
C to +85
o
C
-55
o
C to 125
o
C
-40
o
C to +85
o
C
-55
o
C to 125
o
C
1 MEGABIT/SEC
HD3-6409-9
HD9P6409-9
HD1-6409-9
5962-9088801MRA
HD4-6409-9
5962-9088801M2A
PKG.
NO.
E20.3
M20.3
F20.3
F20.3
J20.A
J20.A
Pinouts
HD-6409 (CERDIP, PDIP, SOIC)
TOP VIEW
HD-6409 (CLCC)
TOP VIEW
BOO
19
18 BZO
17 SS
16 ECLK
15 CTS
14 MS
9
RST
10
GND
11
CO
12
IX
13
OX
BZI
BOI
UDI
SD/CDS
SDO
SRST
NVM
DCLK
RST
1
2
3
4
5
6
7
8
9
20 V
CC
19 BOO
18 BZO
17 SS
16 ECLK
15 CTS
14 MS
13 OX
12 IX
11 CO
NVM
DCLK
7
8
SD/CDS
SDO
SRST
4
5
6
3
2
1
20
GND 10
V
CC
BOI
UDI
BZI
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
2951.1
5-1

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