HD1-6408-9 Intersil Corporation, HD1-6408-9 Datasheet

HD1-6408-9

Manufacturer Part Number

HD1-6408-9

Description

CMOS Asynchronous Serial Manchester Adapter (ASMA)

Manufacturer

Intersil Corporation

Datasheet

1.HD1-6408-9.pdf (11 pages)

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Download datasheet (58Kb)

March 1997

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

http://www.intersil.com or 407-727-9207

Features

• Low Bit Error Rate

• Data Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1MBit/s

• Sync Identiﬁcation and Lock-In

• Clock Recovery

• Manchester II Encoder, Decoder

• Separate Encode and Decode

• Low Operating Power . . . . . . . . . . . . . . . . . 50mW at 5V

• Single Power Supply

• 24 Lead Package

Ordering Information

Pinout

PDIP

CERDIP

PACKAGE

TEMP. RANGE

-40

C to +85

HD3-6408-9

HD1-6408-9

NUMBER

PART

Intersil Corporation 1999

GND

SDO

DSC

CDS

ESC

BOI

UDI

BZI

E24.6

PKG.

NO.

HD-6408 (DIP)

TOP VIEW

5-1

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

and parity bit. The Decoder recognizes this sync pulse and

identiﬁes 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.

SCI

BOO

DBS

SDI

BZO

Manchester Adapter (ASMA)

CMOS Asynchronous Serial

HD-6408

File Number

2952.1

Related parts for HD1-6408-9

HD1-6408-9 Summary of contents

Page 1

... C to +85 C HD3-6408 CERDIP - +85 C HD1-6408-9 Pinout d CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | http://www.intersil.com or 407-727-9207 Copyright Description The HD-6408 is a CMOS/LSI Manchester Encoder/Decoder for creating a very high speed asynchronous serial data bus. ...

Page 2

Block Diagrams ENCODER BIT COUNTER SCI 2 2 ESC 21 SD COUNT RESET DECODER 20 SS SYNC CHARACTER PARITY FORMER 18 DATA 19 SDI EE HD-6408 DBS 13 MR VALID 1 WORD VW ...

Page 3

Pin Description PIN TYPE SYMBOL SECTION ESC SDO BZI 7 I BOI 8 I UDI 9 O DSC 10 O CDS ...

Page 4

Encoder Operation The Encoder requires a single clock with a frequency of twice the desired data rate applied at the SClock input. An auxiliary divide by six counter is provided on chip which can be utilized to produce the SClock ...

Page 5

Decoder Operation The Decoder requires a single clock with a frequency of 12 times the desired data rate applied at the DClock input. The Manchester II coded data can be presented to the Decoder in one of two ways. The ...

Page 6

Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 7

AC Electrical Speciﬁcations V CC SYMBOL PARAMETER (12) T Sync Setup E6 (13) T Sync Pulse Width E7 (14) T Send Data Delay E8 (15) T Bipolar Output Delay E9 (16) T Enable Hold E10 (17) T Sync Hold E11 ...

Page 8

AC Testing Input, Output Waveform INPUT NOTE: AC Testing: All input signals must switch between V Encoder Timing SCI ESC SDI VALID TE2 (8) SC ESC EE SS ESC SD SC BOO OR BZO HD-6408 50% ...

Page 9

Decoder Timing BIT PERIOD BOI T D1 (26 (27) BZI COMMAND SYNC BOI T (27 BZI (26) DATA SYNC T D1 BOI (26 (28 BZI (28 (29) ONE (27) ...

Page 10

Decoder Timing (Continued) DSC (31 CDS T D7 (32) TD DSC (33 SDO DSC (34 CDS (35) T D10 TD VW DSC (23) T (22 (24) T HD-6408 DATA BIT (36) T ...

Page 11

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certiﬁcation. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or speciﬁcations at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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