Programmable
Bar Code Decode ICs

Technical Data

Features

· Ideal for Hand Scanning and

Many Automated Scanning
Applications

· Supports Code 39, UPC /

EAN / JAN, Interleaved 2 of
5, Codabar and Code 128
Standard Bar Code
Symbologies

· Automatic Code Recognition

· Serial Port Interface

· Full Duplex ASCII Interface

· Extensive Configuration

Control

· Low Current CMOS

Technology

· 40 Pin DIP and 44 Pin PLCC

Packages

· Audio and Visual Feedback

Control

· Single +5 Volt Supply

Description

Agilent's Bar Code Decoder ICs
offer flexible bar code decoding
capability that is designed to
give OEMs the ability to address
a large number of industry
segments and applications.
Flexibility is made possible
through sophisticated firmware,
which allows the ICs to accept
data from a wide variety of
scanners and to automatically
recognize and decode the most
popular bar code symbologies.
User implementation of decoder
ICs is easy since it requires
only a few supporting chips and
components and provides a
standard I/O interface.

Manufacturers of data collection
terminals, point of sale terminals,
keyboards, weighing scales, and
other data collection and material
handling equipment are finding
a growing demand for bar code
reading capability in their
products. The HBCR-2010 series
decoder ICs make it easy to add
this capability without the need
to invest in the development of
bar code decoding software.

The bar code decoder ICs are
compatible with most hand held
scanners. The HBCR-2010 series

is compatible with fixed beam
non-contact scanners, digital
wands, digital slot readers and
Symbol Technologies moving
beam laser scanners.

The HBCR-2010 decoder ICs
are excellent decoding solutions
for a number of the stationary
scanning applications found in
automated systems. The scan
rates for moving beam
applications should be similar to
the scan rates for hand held laser
scanners (35 to 45 scans per
second), and the scan speeds for
fixed beam applications should
be similar to the scan speeds
typical of wands and slot readers.
For moving beam applications, it
is also necessary for the scanner
to utilize the three laser scanner
control lines.

HBCR-2010
HBCR-2011

The decoder ICs decode the bar
code symbologies now in use for
most applications in the
industrial, retail, government, and
medical market. The ICs support
Code 39 (Standard or Extended),
Interleaved 2 of 5, the UPC/EAN/
JAN Codes, Codabar and Code
128. Whenever more than one
symbology is enabled, the bar
code being scanned will
automatically be recognized and
decoded, except for Standard and
Extended Code 39 which are
mutually exclusive. Bi-directional
scanning is allowed for all bar
codes except UPC/EAN/JAN with
supplemental digits, which must
be scanned with the supplemental
digits last.

The I/O for the decoder ICs is full
duplex, 7 bit ASCII. A serial port
is available. The serial interface
can be converted to an RS232C
interface or connected directly to
another microprocessor for data
processing. Feedback to the
operator is accomplished by
signals for an LED and a beeper.
In addition, there are
programmable functions covering
items such as code selection and
beeper tone.

The ICs are CMOS, in either a 40
pin DIP package or a 44 pin
PLCC package. All ICs require a
dedicated external data memory,
2K or 8K x 8 bit static RAM (only
1K is needed) and address latch
chip (a 74LS373 or equivalent).
The crystal frequency is 11.059
MHz.

Performance Features

Bar Codes Supported

The decoder IC is capable of
reading popular bar code
symbologies : Code 39 (Standard
or Extended), Interleaved 2 of 5,
UPC/EAN/JAN, Codabar (NW7
Code) and Code 128.

Code 39 is an alphanumeric code,
and Extended Code 39 encodes
the full 128 ASCII character set
by pairing Code 39 characters.
Both can be read bi-directionally
with message lengths of up to 32
characters. An optional checksum
character can be used with these
codes, and the ICs can be
configured to verify this
character prior to data
transmission. Note that enabling
Extended Code 39 will disable
Code 39 since they are mutually
exclusive.

Interleaved 2 of 5 code, a
compact numeric only bar code,
can also be read bi-directionally
with message lengths from 4 to
32 characters. To enhance data
accuracy, optional checksum
character verification and/or
message length checking can be
enabled.

The following versions of the
UPC, EAN and JAN bar codes can
be read bi-directionally: UPC-A,
UPC-E, EAN-8, EAN-13, JAN-8,
and JAN-13. All versions can be
enabled simultaneously or
decoding can be restricted to
only the UPC codes.

UPC, EAN, and JAN codes
printed with complementary two
digit or five digit supplemental
encodations can be read in two
different ways. If the codes are
enabled without the supplemental
encodations, then only the main
part of symbols printed with
supplemental encodations will be
read. If the reading of
supplemental encodations is
enabled, then only symbols with
these supplements will be read.
Whenever supplemental
encodations are enabled, the bar
code symbols must be read in the
direction that results in the
supplements being scanned last.

Codabar, a numeric only bar code
with special characters, can be
read bi-directionally for message
lengths up to 32 characters. The
start and stop characters are
normally transmitted, but can be
suppressed by a software
command.

Code 128, a full ASCII bar code,
can also be scanned bi-
directionally with message
lengths of up to 32 characters.

Scanner Input

The decoder ICs are designed to
accept data from hand held
digital scanners or slot readers
with the following logic state:
black = high, white = low. They
also accept data from hand held
laser scanners with the opposite
logic states: black = low, white =
high. The scanner type pin (SCT)
must be driven prior to power up
or hard reset to identify the type
of scanner attached to it.

The automatic laser shutoff
feature delay time is adjustable by
software commands. Applications
which require extreme accuracy
may need the redundancy check
feature. If either motor failure
sensing or calculation of the
ratio of laser on time to off time
is needed for an application, it
must be supported with external
circuitry.

Scanner input can be disabled by
software command. This allows
an application program to control
when an operator can enter data,
preventing inadvertent data entry.
It also allows the program to
verify each scan before enabling
subsequent scans.

There is also a single read mode
which allows the application
program to stop bar code data
entry until a "Next Read"
command is received, allowing
the host computer to process
data transmissions before
enabling subsequent reads.

Data Communications

The serial port supports a wide
range of baud rates, parities, stop
bits, and terminator characters,
as described in Summary of
Features and Configuration
Control table. Software control of
data transmission is
accomplished with an Xon/Xoff
(DC1/DC3) handshake. There is
also an RTS/CTS hardware
handshake.

Feedback Features

Both audio and visual feedbacks
are possible with the decoder ICs.
In both cases, the outputs from
the ICs must be buffered before
driving the actual feedback
mechanism. An LED or beeper
connected to the decoder ICs can

be controlled directly by the IC,
with signals generated by
successful decodes or can be
controlled by the host system.

Power Requirements

The decoder IC operates from a
+5 volt DC power supply. The
maximum current draw is 19mA.
The maximum power supply
ripple voltage should be less than
100 mV, peak-to-peak.

Configuration Control

Configuration of the decoder IC
is determined by hardwire
connections and/or through
software commands. Hardwire
selection is limited to key
operating parameters. A greater
range of configuration control is
available via software commands.
A summary of the decoder IC
features and configuration
control is presented in Summary
of Features and Configuration
Control table.

Handling Precautions

The decoder ICs are extremely
sensitive to electrostatic
discharge (ESD). It is important
that proper anti-static procedures
be observed when handling the
ICs. The package should not be
opened except in a static free
environment.

Manuals

The decode IC Users Manual
covers the following topics:

· Data output formats

· I/O interfaces

· Laser input timing diagrams

· Escape sequence syntax and

functionality

· Example schematics

· All configurable options

· Bar code menus

· Scanner positioning and tilt

· Sample bar code symbols

· Appendices describing bar code

symbologies.

Ordering Information

Part Number

Description

HBCR-2010

CMOS, 40 pin DIP, bulk ship, no manuals

HBCR-2011

CMOS, 44 pin PLCC, bulk ship, no manuals

Option A01

IC individually boxed with manuals

HBCR-2997

Series 2010 manuals

Recommended Operating Conditions

Parameter

Symbol

Minimum

Maximum

Units

Notes

Supply Voltage

4.0

6.0

Ambient Temperature

- 40

+ 85

Crystal Frequency

XTAL

0 (DC)

12.000

MHz

Element Time Interval

ETI

555

2, 3, 4

(Moving Geam)

Element time Interval

ETI

150

70,000

3, 4

(Fixed Beam)

Element Time Interval

ETI

150

70 000

3, 4

(Contact Scanner)

Absolute Maximum Ratings

Parameter

Symbol

Minimum

Maximum

Units

Notes

Storage Temperature

- 55

+ 150

Supply Voltage

- 0.5

+ 7.0

Pin Voltage

- 0.5

+ 0.5

1, 2

Notes:

1. Voltage on any pin with respect to ground.
2. T

= 25

DC Characteristics

= - 40

C to +85

C, V

= 4.5 V to 5.5 V, V

= 0 V)

Test

Symbol

Parameter

2010 Pins

2011 Pins

Min.

Max.

Units

Conditions

Input Low Voltage

All

-0.5

0.2 V

0.1

Input High Voltage

except 9,18

Except 10, 20

0.2V

+0.9

+ 0.5

IH1

Input High Voltage

9, 18

10, 20

0.7 V

+ 0.5

Output Low Voltage

1-8, 10-17,

2-9, 11, 13-19,

0.45

= 1.6 mA

21-28

24-31

OL1

Output Low Voltage

30,32-39

33, 36-43

0.45

= 3.2 mA

Output High Voltage

1-8, 10-17,

2-9, 11, 13-19,

2.4

= -60

21-28

24-31

0.75 V

= -30

0.9 V

= -10

Output High Voltage

30, 32-39

33, 36-43

2.4

= -400

0.75 V

= -150

0.9 V

= -40

Input Low Current

1-8, 10-17,

2-9, 11, 13-19,

-10

-200

= 0.45 V

21-28

24-31

IL2

Input Low Current

-3.2

= 0.45 V

IL1

Input Leakage Current

32-39

36-43

0.45

RST

Pulldown Resistor

125

Power Supply Current

All outputs

disconnected

Idle Mode Power

Note 1.

Supply Current

Note: 1. Applies only in Wand Mode with no scanning or I/O operation in progress.

Notes:

1. Maximum power supply ripple of 100 mV peak-to-peak.
2. The HBCR-2010 series uses a 11.059 MHz crystal. For different crystal

frequencies, multiply the specified baud rate and beeper frequencies by
(crystal frequency/11.059 MHz) and multiply the element time interval
ranges by (11.059 MHz/crystal frequency).

3. At the specified crystal frequency.
4. Corresponds to a scan rate of 35

to 45 scans per second.

Summary of Features and Configuration Control

Hardwire/

Software

Feature

Function or Value

Control

[1]

Default Setting

[2]

Scanner Type

Contact reader or moving beam laser scanner

Hardwire

Moving beam laser scanner

Laser Shutoff Delay

Defines laser on time prior to automatic

Software

3 seconds

shutoff from 0 to 10 seconds in 100 ms steps

Laser Redundancy

Enables requirement for two consecutive,

Software

Disabled

Check

identical decodes for a good read

Scanner Input Enable

Enables data acquisition from the scanner

Software

Enabled

Single Read Mode

Enables requirement for a "Next Read"

Software

Disabled

command before processing the next scanner
input signal

Extended Code 39

Both

Code 39

Interleaved 2 of 5

Code Select

UPC/EAN/JAN Codes

Software

UPC/EAN/JAN

Codabar

Code 128

UPC/EAN/JAN

UPC/EAN/JAN together, or UPC only

Software

UPC/EAN/JAN together

Decoding

Options

Enable 2 or 5 digit supplements

Software

Supplements disabled

Codabar Data

Transmit or suppress Start/Stop characters

Software

Transmit

Transmission Option

Check Characters

Code 39 check character verification

Both

Interleaved 2 of 5 check character verification

Software

No Verification

Interleaved 2 of 5

User Defined from 4 to 32 characters (even

Software

Variable length

Label Length Check

only) or variable length

Baud Rate

1200, 2400, 4800, 9600

Hardwire

1200 Baud

Parity

0's, 1's, Odd, Even

Hardwire

0's

Stop Bits

1 or 2

Hardwire

Terminator Character

, None

Hardwire

User defined (10 characters max.)

Software

Header Character

User defined (10 characters max.)

Software

No header character

Data Output Pacing

RTS/CTS

Hardwire

OFF

Software

Pacing

Good Read Beep Select

Enables good read beep (1 of 16 tones)

Software

Beep tone = 12

Sound Tone

Command to sound tones (1 of 16)

Software

N/A

LED Control

Controls LED driver circuit

Software

LED to flash upon good read

Status Request

Gives status of decoder IC Configuration

Software

N/A

Hard Reset

Resets decoder IC to hardwire configuration

Software

N/A

and default software settings

Notes:
1. Hardwire control is accomplished by tying appropriate input pins high or low. Software commands are sent by means of escape

sequences.

2. Default settings are those settings which result when the relevant pins have been tied to +5 V and no software commands have

been sent to the decoder IC.

Mnemonic

Description

BR0

Baud Rate Select 0

BR1

Baud Rate Select 1

Stop Bits

PT0

Parity Select 0

PT1

Parity Select 1

TR0

Trailer Select 0

TR1

Trailer Select 1

CTS

Clear to Send

RTS

Request to Send

RxD

Received Data

TxD

Transmitted Data

TRG

Trigger Input

LSE

Laser Scan Enable

SSY

Laser Synchronization

SCT

Scanner Type

LED

LED Control

BPR

Beeper Control

RST

Reset

Scanner Input

No Connect

Connect to +5 V

ALE

Address Latch Enable

Memory Write

Memory Read

XTAL 1

Crystal Input 1

XTAL 2

Crystal Input 2

C39FLA

Code 39 Full ASCII Conversion

C39CSE

Code 39 Check Character Enable

AD0-AD7

Address/Data Bits 0-7

Memory Address Line 8

Memory Address Line 9

Vss

Ground

Vcc

+5 V Power

HBCR-2010 Series Pinout

BR0

BR1

CTS

RTS

LSE

SCT

TRG

RST

RxD

TxD

SSY

LED

BPR

XTAL 2

XTAL 1

VSS

VCC

AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

ALE

C39CSE

C39FLA

TR1

TR0

PT1

PT0

2010

LSE

2011

41 40

SCT

TRG

RST

RxD

TxD

SSY

LED

BPR

AD4

AD5

AD6

AD7

ALE

C39CSE

C39FLA

TR1

20 21

RTS

CTS

BR1

BR0

AD0

AD1

AD2

AD3

XTAL 2

XTAL 1

PT0

PT1

TR0

Escape Sequence Summary

Command

Description

Command

Description

<esc> - y<n>B

Good Read Beep Select

Trailer Select

<esc> - y<n>C

Industrial Code Select

<esc> - y<n>S

Status Request

<esc> - y<n>D

Checksum Verification

<esc> - y<n>T

Sound Tone

Select

<esc> - y<n>E

Decoding Options

<esc> - y<n>J

Single Read Mode

<esc> - y<n>F

Code Select

<esc> - y<n>K

Next Read

<esc> - y<n>G

Check Character Select

<esc> - y<n>R

Laser Redundancy
Check

<esc> - y<n>H

Decoding Options

<esc> - y<n>V

Laser Shutoff Delay

<esc> - y<n>L

LED Control

<esc> - y<n>U

UPC/EAN/JAN Options

<esc> - y<n>M

Interleaved 2 of 5

<esc> - y<n>W

Scanner Enable

Length Check

Header Select

<esc> - y<n>X

DC1/ DC3 Pacing

<esc> E

Hard Reset

Note:
<esc> is the ASCII escape character, 27 decimal, 1B hex.

IC Reset Circuits

Figure 1.

VCC

4.7 µF

1N914

RESET

PLCC Drying

Whenever Vapor Phase or
Infrared Reflow technologies are
used to mount the PLCC
packages, there is a possibility
that previously absorbed
moisture, heated very rapidly to
the reflow temperatures, may
cause the package to crack from
internal stress. There is a
reliability concern that moisture
may then enter the package over
a period of time, and metal
corrosion may take place,
degrading the IC performance.

To reduce the amount of
absorbed moisture and prevent
cracking, all of the PLCC ICs
should undergo one of the
following baking cycles. The
parts MUST then be mounted
within 48 hours.

Neither bake cycle can be
performed in the standard
shipping tubes. The ICs must be
baked in an ESD safe,
mechanically stable container,
such as an aluminum tube or pan.

PLCC Solder Pad Reference

Figure 4. Pad Size.

Figure 5. Pad Placement.

If the parts are not mounted
within 48 hours, they MUST be
rebaked.

The total number of baking cycles
must not exceed two (2). If the
ICs are baked more than twice.
Agilent cannot guarantee the
performance and reliability of the
parts.

Cycle

Temperature

Time

Notes

125

24 Hours

96 Hours

Note:
1. Cycle B must be done in an atmosphere of < 5 %

relative humidity air or nitrogen.

0.76

1.8

1.27

R 0.2

UNITS (mm)

12.7

15.6

12.7

15.6

UNITS (mm)

Contact Scanner Input Circuit

Notes:
1. The shield MUST be connected to ground for proper scanner operation.
2. The ® TRANZORBS are optional. If the application requires the frequent changing of the scanners, they are highly recommended.

® TRANZORB is a registered trademark of General Semiconductor Industries, Tempe, AZ.

Figure 6. Recommended Interface.

Figure 7. 5 Volt Laser Interface.

VCC

SCANNER

CONNECTOR

SCANNER
INPUT

3
4

SHIELD

1 K

®TRANZORBS
P6KE 7.5 C

Moving Beam Scanner Input Circuits

+5 V

9 PIN

MALE D

CONNECTOR

SSY

+5 V

5.1 K

+5 V

TRG

LSE

1 K

2N3906

Figure 8. 12 Volt Laser Interface.

+5 V

9 PIN

MALE D

CONNECTOR

SSY

+12 V

820

+5 V

TRG

LSE

1 K

2N3906

10 K

Document Outline

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: HBCR-2010

Document Outline

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: HBCR-2010