ID TECH Quickbar High Speed Decoding Chip for Bar CodesThe ID TECH QuickBar is a single chip, high-speed bar code decoder. The chip is far smaller than traditional decoding chip sets. With a minimum of additional components, you can build a high speed and feature rich bar code decoding subsystem. This high-speed chip has a minimum instruction time of 0.125 second when operating with an 8 MHz crystal. Comparable 8051 type microcontollers have a 1.5 second minimum instruction time (twelve times slower). The ID TECH QuickBar Chip uses "on the fly" parallel processing to offer a very quick and robust decode. It supports a scan speed of up to 100 scans per second.
The standard ID TECH QuickBar Chip package dimensions are 17.5 mm. by 17.5 mm. and 4.35 mm. thick (0.69" by 0.69" and .17" thick) in a PLCC-44 package. The basic bar code decode subsystem with support components is only about 22 mm. by 32 mm. (0.875" by 1.25") on a two-layer board.
The ID TECH QuickBar decode chip has a programmable memory which creates a single chip solution with a rapid upgrade flexibility. Some vendors use a "masked microcontroller" approach that requires at least a SRAM chip and a latch chip, therefore a three-chip solution. The "masked microcontroller" approach requires long lead time for firmware revisions, ID TECH's solution provides the optimum in performance with the added advantage of easily revising its programs.
- Beeper - A good read beeper function may be added with the addition of the beeper, a diode, a transistor and a resistor
- LED - A 3mm. good read LED function may be added without other additional components
- Package Options - The ID TECH QuickBar Chip is also available in a 40 pin DIP and 44 pin TQFP package
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