hd1-15531b883 Intersil Corporation, hd1-15531b883 Datasheet

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hd1-15531b883

Manufacturer Part Number
hd1-15531b883
Description
Cmos Manchester Encoder-decoder
Manufacturer
Intersil Corporation
Datasheet
March 1997
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
Features
• Support of MIL-STD-1553
• Data Rate (15531B) . . . . . . . . . . . . . . . .2.5 Megabit/Sec
• Data Rate (15531) . . . . . . . . . . . . . . . . .1.25 Megabit/Sec
• Variable Frame Length to 32 Bits
• Sync Identification and Lock-In
• Separate Manchester II Encode, Decode
• Low Operating Power . . . . . . . . . . . . . . . . . 50mW at 5V
Ordering Information
PDIP
CERDIP
DESC
(CERDIP)
PACKAGE
TEMP. RANGE
-55 to 125
-55 to 125
-55 to 125
-40 to 85
-40 to 85
(
o
C)
|
Intersil (and design) is a trademark of Intersil Americas Inc.
TM
HD1-15531-9
HD1-15531-8
5962-
9054901MQA
5962-
9054902MQA
1.25MBIT
/SEC
-
HD3-15531B-9
HD1-15531B-9
HD1-15531B-8
HD1-15531
HD1-15531B
2.5MBIT
/SEC
E40.6
F40.6
F40.6
F40.6
F40.6
PKG.
NO.
1
Description
The Intersil HD-15531 is a high performance CMOS device
intended to service the requirements of MIL-STD-1553 and
similar Manchester II encoded, time division multiplexed
serial data protocols. This LSI chip is divided into two sec-
tions, an Encoder and a Decoder. These sections operate
independently of each other, except for the master reset and
word length functions. This circuit provides many of the
requirements of MIL-STD-1553. The Encoder produces the
sync pulse and the parity bit as well as the encoding of the
data bits. The Decoder recognizes the sync pulse and identi-
fies it as well as decoding the data bits and checking parity.
The HD-15531 also surpasses the requirements of MIL-
STD-1553 by allowing the word length to be programmable
(from 2 to 28 data bits). A frame consists of three bits for
sync followed by the data word (2 to 28 data bits) followed by
one bit of parity, thus, the frame length will vary from 6 to 32
bit periods. This chip also allows selection of either even or
odd parity for the Encoder and Decoder separately.
This integrated circuit is fully guaranteed to support the
1MHz data rate of MIL-STD-1553 over both temperature and
voltage. For high speed applications the 15531B will support
a 2.5 Megabit/sec data rate.
The HD-15531 can also be used in many party line digital
data communications applications, such as a local area net-
work or an environmental control system driven from a single
twisted pair of fiber optic cable throughout a building.
CMOS Manchester Encoder-Decoder
HD-15531
FN2961.1

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hd1-15531b883 Summary of contents

Page 1

... MIL-STD-1553 over both temperature and voltage. For high speed applications the 15531B will support HD1-15531B-8 F40.6 a 2.5 Megabit/sec data rate. HD1-15531 F40.6 The HD-15531 can also be used in many party line digital data communications applications, such as a local area net- HD1-15531B F40 ...

Page 2

Pinout SERIAL DATA OUT SYNCHR DATA SEL SYNCHR CLK SEL BIPOLAR ZERO IN UNIPOLAR DATA IN DECODER SHIFT CLK DECODER PARITY SEL Block Diagrams GND 21 MASTER RESET 22 SEND CLK IN 33 ÷ 6 OUT 24 ÷ ENCODER CLK ...

Page 3

SYNCHRONOUS 13 UNIPOLAR DATA IN 12 TRANSITION BIPOLAR ONE IN 11 BIPOLAR ONE IN 9 DECODER CLK 15 SYNCHRONIZER DECODER CLK SELECT 8 SYNCHRONOUS CLK 10 SYNCHRONOUS CLK SELECT 22 MASTER RESET Pin Description PIN NUMBER TYPE NAME 1 V ...

Page 4

Pin Description (Continued) PIN NUMBER TYPE NAME 14 O DECODER SHIFT CLOCK 15 I TRANSITION SE- LECT COMMAND SYNC 18 I DECODER PARITY SELECT 19 I DECODER RESET 20 I COUNT C0 21 GROUND 22 I ...

Page 5

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

Page 6

SERIAL DATA OUT. The decoded data available at SERIAL DATA OUT is in NRZ format. The DECODER SHIFT CLOCK is provided so that the decoded bits can get shifted into an external register on every ...

Page 7

Frame Counter FRAME LENGTH DATA BITS (BIT PERIODS ...

Page 8

VALID WORD TAKE DATA SYNC DATA SYNC DATA SELECT SYNC CLOCK DECODER CLOCK SYNC CLOCK SELECT BIPOLAR ZERO IN BIPOLAR ONE IN UNIPOLAR DATA IN TRANSITION SELECT COMMAND SYNC DECODER 74164 PARITY SELECT COUNT C 0 ...

Page 9

SYNC BIPOLAR ONE IN BIPOLAR ZERO IN COMMAND SYNC VALID PARALLEL OUT VALID WORD FROM PREVIOUS RECEPTION MIL-STD-1553 The 1553 Standard defines a time division multiplexed data bus for application within aircraft. The bus is defined to be bipolar, and ...

Page 10

FIGURE 8. MIL-STD-1553 CHARACTER FORMATS COMMAND WORD (FROM CONTROLLER TO TERMINAL) SYNC DATA WORD (SENT EITHER DIRECTION) SYNC STATUS WORD (FROM TERMINAL TO CONTROLLER) SYNC NOTE: 1. This page is a summary of MIL-STD-1553 and is ...

Page 11

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

Page 12

AC Electrical Specifications V CC SYMBOL PARAMETER ENCODER TIMING FEC Encoder Clock Frequency FESC Send Clock Frequency FED Encoder Data Rate TMR Master Reset Pulse Width TE1 Shift Clock Delay TE2 Serial Data Setup TE3 Serial Data Hold TE4 Enable ...

Page 13

Timing Waveforms SEND CLOCK ENCODER SHIFT CLOCK T E2 VALID SERIAL DATA IN SEND CLOCK ENCODER SHIFT CLOCK ENCODER ENABLE SYNC SELECT ENCODER SHIFT CLOCK SEND DATA SEND CLOCK BIPOLAR ONE OUT OR BIPOLAR ZERO OUT HD-15531 ...

Page 14

Timing Waveforms (Continued) BIT PERIOD BOI BZI COMMAND SYNC BOI BZI DATA SYNC T D1 BOI BZI ONE NOTE: BIPOLAR ONE ...

Page 15

Timing Waveforms (Continued) DECODER SHIFT CLOCK T COMMAND/DATA SYNC T TAKE DATA DECODER SHIFT CLOCK SERIAL DATA OUT DECODER SHIFT CLOCK T COMMAND/DATA SYNC T TAKE DATA VALID WORD DECODER SHIFT CLOCK DECODER RESET SYNCHRONOUS CLOCK IN DECODER SHIFT CLOCK ...

Page 16

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software 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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