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ID TECH main page.
ID TECH Magbar
Decoder Chip Set for Bar Codes and Magnetic
ID TECH MagBar
Chip Set is a magnetic stripe and bar code decode chip set consisting of two main chips:
the microcontroller chip and the multifunction chip. The chip set is far
smaller than traditional chip sets. With a minimum of additional
components, you can build a high performance and very feature rich bar
code/magnetic stripe decoding subsystem. This high speed chip set has a
minimum instruction time near 0.4 second minimum instruction time. The
ID TECH MagBar Chip Set also uses parallel processing to offer a very quick and robust decode.
-- The standard ID TECH MagBar Chip Set
package dimensions are 14.5 mm. by 13.5 mm. and 2 mm. thick (approximately 0.57" by
0.53" and 0.08") for the OKI microcontroller in a QFP package and 17.5 mm. by
17.5 mm. and 4.35 mm. thick (0.69" by 0.69" and .17" thick) for the WSI
multifunction chip in a PLCC package. The basic bar code and magnetic stripe decode
subsystem with support components is only about 38 mm. by 38 mm. (1.5" by 1.5")
on a two layer board.
- Magnetic Stripe Decoding
-- The ID TECH MagBar
Chip Set decodes single, dual and triple track magnetic stripes on credit cards and
driver's licenses. The chip set supports driver's license formats accepted by the national
motor vehicles standards group AAMVA and the California Department of Motor Vehicles. The
encoded data can be in ANSI, ABA, IATA, or Thrift magnetic stripe format. There is an
option for selecting the tracks to be read, sending or suppressing track 1 start/stop
sentinels, sending the track two account number only, and an option for selecting the
track separator character for multi-track readers.
- Programmable Memory -- The ID TECH chip
set uses a standard microcontroller with a programmable memory chip. This approach creates
a two chip solution with rapid upgrade flexibility. Some vendors use a "Masked
Microcontroller" approach, which requires at least a SRAM chip and a latch chip,
therefore a three chip solution. Also, this approach requires long lead times for firmware
- Beeper -- A good read beeper function
may be added with the addition of the beeper, a diode, a transistor and a resistor.
- LED -- A good read LED function may be
added with the addition of the 3 mm. green LED, a transistor and a resistor.
- Low Power Options -- There are lower
power chip sets available.
- Non-Volatile Memory -- An AT93C56 EEPROM
may be added for non-volatile memory to store variable configuration data. The SO-8
package is recommended.
- Package Options -- The microcontroller
chip is also available in either a 44 pin PLCC package or a 40 pin DIP package. The
multifunction chip is also available in a 44 pin QFP package.
||WSI PSD312-12J (64 KB, 2 KB SRAM)
|Input Devices (2 ports)
||Undecoded Laser Scanner (port 1)
|Undecoded CCD Scanner (port 1)
|Wand (port 1)
|Slot Reader (port 1)
|1, 2 or 3 track Mag. Stripe Reader (port 2); also supports AAMVA and
||TTL Serial (RS232C w. RS232 chip) supports baud rates from
300 to 19200
|Keyboard Wedge; supports major PC keyboard interfaces
|Wand Emulation; for systems that only accept wand input
||QFP-44, surface mount only
||PLCC-44, surface mount or through hole
|Maximum Scan Rates
||Laser Scanner: up to 150 scans per second; CCD Scanner: up
to 200 reads per second; Wand: 3 to 100 in/sec on 10 mil. code
|Good Read Signal
||Code 39, Interleaved 2 of 5, Industrial 2 of 5, Code 128,
Codabar, MSI/Plessy, Code 93, Code 11, UPC-A, -E and EAN-13, -8.
|Chip Set Current Draw
||Typical 35 ma
||Operating Temperature: 32 F to 155 F, 0 C to 70 C
|Storage Temperature: -85 F to 302 F, -65 C to 150 C
|User Programmable Features
||Enable/Disable individual symbologies
|Enable/Disable, Send/Suppress check digit
|Send/Suppress, Start/Stop character
|Minimum/Maximum code length
|Send/Suppress UPC number system digit
|Send/Suppress EAN country code digits
|Enable/Disable UPC/EAN separator/ supplemental
|User selectable Code ID
|Verification before good read
|Adjust beep volume
|Message Formatting: Selectable terminator character,
Selectable 16 character preamble, Selectable 16 character postamble, Enable/Disable use of
|Data Editing: Validation of the input data, Rearrange the
data, Insert/Delete character strings, Duplicate fields of data, Insert time delay between
|RS232 Options: Baud rate, data bits, stop bits, parity,
|Keyboard Wedge Options: Terminal selection: AT, PS/2, Mac,
etc.; Intercharacter delay, interblock delay
|Wand Emulation Options: Scan rate, emulation mode,
polatiry, W/N ratio
for the Basic Decode Subsystem
|1 magnetic magnetic magnetic
||11.0592 MHz Crystal
||3.3 f/10V Tantalum Capacitor
||Case B recommended
||47 f/10V Electrolytic Capacitor
||0.047 f Capacitor
||33 pf Capacitor
||4.7 K Resistor
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