Programmable
Bar Code Decode ICs
Technical Data
HBCR-2010
HBCR-2011
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.
2
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.
3
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
HBCR-2010
HBCR-2011
Option A01
HBCR-2997
Description
CMOS, 40 pin DIP, bulk ship, no manuals
CMOS, 44 pin PLCC, bulk ship, no manuals
IC individually boxed with manuals
Series 2010 manuals
4
Recommended Operating Conditions
Parameter
Supply Voltage
Ambient Temperature
Crystal Frequency
Element Time Interval
(Moving Geam)
Element time Interval
(Fixed Beam)
Element Time Interval
(Contact Scanner)
Notes:
Symbol
V
CC
T
A
XTAL
ETI
M
ETI
F
ETI
C
Minimum
4.0
- 40
0 (DC)
22
150
150
Maximum
6.0
+ 85
12.000
555
70,000
70 000
Units
V
°C
MHz
µs
µs
µs
Notes
1
2
2, 3, 4
3, 4
3, 4
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.
Absolute Maximum Ratings
Parameter
Storage Temperature
Supply Voltage
Pin Voltage
Notes:
Symbol
T
S
V
CC
V
IN
Minimum
- 55
- 0.5
- 0.5
Maximum
+ 150
+ 7.0
V
CC
+ 0.5
Units
°C
V
V
Notes
2
1, 2
1. Voltage on any pin with respect to ground.
2. T
A
= 25
°C.
DC Characteristics
(T
A
= - 40°C to +85°C, V
CC
= 4.5 V to 5.5 V, V
SS
= 0 V)
Symbol
V
IL
V
IH
V
IH1
V
OL
V
OL1
V
OH
Parameter
Input Low Voltage
Input High Voltage
Input High Voltage
Output Low Voltage
Output Low Voltage
Output High Voltage
2010 Pins
All
except 9,18
9, 18
1-8, 10-17,
21-28
30,32-39
1-8, 10-17,
21-28
30, 32-39
2011 Pins
All
Min.
-0.5
Max.
0.2 V
CC
– 0.1
V
CC
+ 0.5
V
CC
+ 0.5
0.45
0.45
2.4
0.75 V
CC
0.9 V
CC
2.4
0.75 V
CC
0.9 V
CC
-10
-200
-3.2
±
10
125
18
9
Units
V
V
V
V
V
V
V
V
V
V
V
µA
µA
µA
KΩ
mA
mA
Test
Conditions
Except 10, 20 0.2V
CC
+0.9
10, 20
0.7 V
CC
2-9, 11, 13-19,
24-31
33, 36-43
2-9, 11, 13-19,
24-31
33, 36-43
I
OL
= 1.6 mA
I
OL
= 3.2 mA
I
OH
= -60
µA
I
OH
= -30
µA
I
OH
= -10
µA
I
OH
= -400
µA
I
OH
= -150
µA
I
OH
= -40
µA
V
IN
= 0.45 V
V
IN
= 0.45 V
0.45≤ V
IN
≤
V
CC
All outputs
disconnected
Note 1.
V
OH
Output High Voltage
I
IL
I
IL2
I
IL1
R
RST
I
CC
I
CC
Input Low Current
Input Low Current
Input Leakage Current
Pulldown Resistor
Power Supply Current
Idle Mode Power
Supply Current
1-8, 10-17,
21-28
18
32-39
9
-
-
2-9, 11, 13-19,
24-31
20
36-43
10
-
-
20
Note:
1. Applies only in Wand Mode with no scanning or I/O operation in progress.
5
Summary of Features and Configuration Control
Feature
Scanner Type
Laser Shutoff Delay
Laser Redundancy
Check
Scanner Input Enable
Single Read Mode
Function or Value
Contact reader or moving beam laser scanner
Defines laser on time prior to automatic
shutoff from 0 to 10 seconds in 100 ms steps
Enables requirement for two consecutive,
identical decodes for a good read
Enables data acquisition from the scanner
Enables requirement for a “Next Read”
command before processing the next scanner
input signal
Extended Code 39
Code 39
Interleaved 2 of 5
UPC/EAN/JAN Codes
Codabar
Code 128
UPC/EAN/JAN together, or UPC only
Enable 2 or 5 digit supplements
Transmit or suppress Start/Stop characters
Code 39 check character verification
Interleaved 2 of 5 check character verification
Interleaved 2 of 5
Label Length Check
Baud Rate
Parity
Stop Bits
Terminator Character
User Defined from 4 to 32 characters (even
only) or variable length
1200, 2400, 4800, 9600
0’s, 1’s, Odd, Even
1 or 2
C
R,
C
R
L
F,
E
T
X
,
Hardwire/
Software
Control
[1]
Hardwire
Software
Software
Software
Software
Default Setting
[2]
Moving beam laser scanner
3 seconds
Disabled
Enabled
Disabled
Both
Code 39
Interleaved 2 of 5
UPC/EAN/JAN
Codabar
Code 128
UPC/EAN/JAN together
Supplements disabled
Transmit
Code Select
Software
UPC/EAN/JAN
Decoding
Options
Codabar Data
Transmission Option
Check Characters
Software
Software
Software
Both
Software
Software
Hardwire
Hardwire
Hardwire
No Verification
Variable length
1200 Baud
0’s
1
None
Hardwire
Software
Software
Hardwire
Software
Software
Software
Software
Software
Software
C
R
No header character
No
Pacing
Beep tone = 12
N/A
LED to flash upon good read
N/A
N/A
User defined (10 characters max.)
Header Character
Data Output Pacing
User defined (10 characters max.)
RTS/CTS
X
ON
/X
OFF
Good Read Beep Select
Sound Tone
LED Control
Status Request
Hard Reset
Enables good read beep (1 of 16 tones)
Command to sound tones (1 of 16)
Controls LED driver circuit
Gives status of decoder IC Configuration
Resets decoder IC to hardwire configuration
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.
汽车电子
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
