HBCR-1610

H Single Chip Bar Code Decode IC Technical Data HBCR-1610 HBCR-1611 HBCR-1612 Features • Supports Five Industry Standard Bar Code Symbologies • Automatic Code Recognition • Choice of Parallel or Full Duplex Serial ASCII Interface • Programmable via Escape Sequences or Pin Strapping • CMOS • Through Hole and Surface Mount Packages • Audio and Visual Feedback Control automatically discriminates and decodes the following symbologies: • Code 39 (Standard or Extended) • Interleaved 2 of 5 • UPC A, E0, E1 • EAN/JAN 8, 13 • Codabar • Code 128 All bar codes may be scanned bidirectionally except for UPC/ EAN/JAN bar codes with supplemental digits, which must be scanned so that the supplemental digits are scanned last. Scanner Input The HBCR-1610 decode ICs are designed to accept input from hand held digital scanners and slot readers. The maximum scan speed is 30 ips (73 cm/s). Data Communications The serial port supports a variety of baud rates, parity, and stop bits as described in Table 5. The IC has a “Single Read Mode” which allows the application program to stop data input until a “Next Read” command has been received. This allows the host computer to process data transmissions before enabling subsequent reads. Control of data transmission is available using the standard XON/XOFF (D1/ D3) handshake. The parallel port is accomplished via an external 74HCT646 (octal bus transceiver) or two 74HCT574s (octal latches). There are handshake lines for both data and commands. Feedback Features Both audible and visual feedback are possible with the HBCR-1610 series. In both cases, the feedback outputs from the IC should be buffered before driving the transducer. An LED or beeper connected to the IC is either controlled directly by the IC, with signals generated by successful decodes, or controlled by the host system. The tone of the beeper can be configured to one of 16 tones, or can be silenced. Description The Hewlett-Packard Single Chip Bar Code Decoder IC offers flexible bar code decoding that is designed to give OEMs the ability to address a growing number of industry segments and applications. Flexibility is made possible through firmware that allows the IC to automatically recognize and decode the most popular bar code symbologies. User implementation is easy since only a few supporting components are required. The HBCR-1610 series decodes the most popular bar code symbologies used in applications in government, retail, industrial and medical markets. The IC 5965-5950E 4-37 Power Requirements The decoder IC is operated from a +5 volt DC power supply. The maximum current draw is 24 mA. The maximum power supply ripple voltage should be less than 100 mV, peak-to-peak. Idle Mode The IC automatically reduces power consumption whenever there is no scanning or decoding activity, or when there is no activity on the I/O port. See Table 4. Manual The HBCR-1610 Series Users Manual (HBCR-1697) covers the following topics: • Specifications and Timing Diagrams • Pin Definitions and Schematics • General Scanning Tips • Configuration and Operation • Escape Sequence Programming • Data Output Formats • Sample Bar Codes • I/O and Pacing Characteristics Table 1. Recommended Operating Conditions Parameter Supply Voltage Ambient Temperature Oscillator Frequency Symbol Minimum Maximum VCC 4.5 5.5 TA 0 +70 FOSC DC 16.000 Units Notes V 1 °C MHz 2 Notes: 1. Maximum power supply ripple of 100 mV peak-to-peak. 2. The IC can use either an 11.059 or a 16.000 MHz crystal or ceramic resonator. The FRQ pin selects the frequency that matches the oscillator. Table 2. Absolute Maximum Ratings Parameter Storage Temperature Supply Voltage Pin Voltage Symbol TS VCC VIN Minimum Maximum -65 +150 -0.5 -0.5 +7.0 VCC + 0.5 Units Notes °C V V 3 Note: 3. Voltage on any pin with respect to ground. Table 3. Ordering Information Part Number HBCR-1610 HBCR-1611 HBCR-1612 HBCR-1697 Option A01 Option B01 Description CMOS, 40 pin DIP, bulk shipment, no manual CMOS, 44 pin PLCC, bulk shipment, no manual CMOS, 40 pin QFP, bulk shipment, no manual HBCR-1610 Series Users Manual IC individually bagged, no manual IC individually boxed with manual and data sheet IC Configuration The default configuration is set when the IC powers up or when a Hard Reset command is received. Default configuration of many of the options is dependent on the logic states of IC pins, as shown in Table 5. A complete description of the pins and all possible configurations is in the Users Manual. More complete and flexible configuration is achieved using escape sequence commands. There are two pins that cause significant changes in the IC operation. FRQ Pin The FRQ pin is used to tell the IC what frequency oscillator is attached to the IC. Using the higher frequency allows greater maximum scan speeds, but causes the IC to draw slightly more supply current. If the state of the FRQ pin does not match the actual oscillator, beeper tones, LED flash length, parallel port timing, and serial port baud rates are adversely affected. FRQ 0 1 Oscillator Frequency 16.000 MHz 11.059 MHz IOM Pin The IOM pin selects between the serial and parallel I/O mode of the IC. Depending on the state of the IOM pin, definitions of several configuration pins change or move to new positions. IOM 0 1 I/O Mode Parallel Serial 4-38 Escape Sequences The following set of escape sequences is used to control the IC and change its default configuration. Note that all configuration changes will be lost after a Hard Reset, or after power up. Detailed information on how to formulate and use escape sequences is given in the Users Manual. Table 7. Escape Sequences Escape Sequence EC - y b EC - y d EC E EC - y f EC - y g EC - y h EC - y j EC - y k EC - y l EC - y m EC - y O EC - y q EC - y s EC - y t EC - y w Function Good Read Beep Tone Serial Intercharacter Delay Hard Reset Bar Code Symbology Selection Check Character Options Decoding Options Single Read Mode Single Read Control LED Control Interleaved 2 of 5 Length Trailer Selection Code ID Characters Status Request Sound Tone Scanner Enable Table 4. DC Characteristics HBCR-1610, 1611, 1612 (TA = 0 °C to +70 °C, VCC = 4.5 V to 5.5 V, VSS = 0 V) Symbol Parameter 1610 Pins 1611 Pins VIL Input Low all all Voltage VIH Input High except except Voltage 9, 19 10, 21 VIH1 Input High 9, 19 10, 21 Voltage VOL Output Low 1-8, 10-17, 2-9, 11, Voltage 21-28 13-19, 24-31 VOL1 Output Low 32-39 36-43 Voltage VOH Output High 1-8, 10-17, 2-9, 11, 21-28 Voltage 13-19, 24-31 VOH1 Output High Voltage 32-39 36-43 1612 Pins all except 4, 15 4, 15 1-3, 5, 7-13 18-25, 40, 44 30-37 1-3, 5, 7-13 18-25, 40-44 30-37 2.4 0.75 VCC 0.9 VCC 2.4 0.75 VCC 0.9 VCC -50 ± 10 Min. -0.5 0.2 VCC + 0.9 0.7 VCC Max. Units 0.2 VCC V - 0.1 VCC V + 0.5 VCC V + 0.5 0.45 V 0.45 V V V V V V V µA µA KΩ mA mA mA mA Scanning Idle Scanning Idle 4-39 Test Conditions IOL = 1.6 mA IOL = 3.2 mA IOH = -60 µA IOH = -25 µA IOH = -10 µA IOH = -400 µA IOH = -150 µA IOH = -40 µA VIN = 0.45 V VSS ≤ VIN ≤ VCC IIL ILI RRST ICC ICC Input Low 1-8, 10-17, 2-9, 11, 1-3, 5, 7-13, Current 21-28 13-19, 24-31 18-25, 40-44 Input 32-39 36-43 30-37 Leakage Current Pulldown 9 10 4 Resistor Supply 40 44 38 Current 11.059 MHz Supply 40 44 38 Current 16.000 MHz 50 150 18 4 24 6 Table 5. Summary of Features and Configurations – HBCR-1610 Series Feature Bar Code Symbology Function or Value When a symbology is enabled, bar codes of that type can be read, assuming other decoding options are satisfied. Length variable from 4 to 32, or specific lengths from 2 to 32, or 6 or 14 only For Code 39 For Interleaved 2 of 5 For Code 128† For UPC/EAN† For Code 39 and Interleaved 2 of 5 For UPC/EAN For Code 128† Converts paired Code 39 data characters to Full ASCII characters UPC vs. UPC/EAN UPC E expansion to UPC A UPC E Version 1 autodiscrimination UPC/EAN supplemental digits UPC/EAN check digit UPC/EAN output format Transmits or suppresses Codabar start/stop characters 1200, 2400, 4800, 9600 0s, 1s, even, odd 1 or 2 Controls data flow on either port Controls 10 millisecond intercharacter delay on the serial port String of characters appended to the decoded message (4 maximum) Controls when labels can be read Controls the transmission of the Code ID characters before decoded data Controls the tone sounded when a bar code label is read Controls LED function: flash or turn off after a label is read Default Setting Serial Mode Parallel Mode Depends on pins: C39, I25, UPC All codes enabled CDB and C28. Variable, 4-32 Variable, 4-32 Interleaved 2 of 5 Label Length Check Character Verification Check Character Transmission Extended Code 39 Enable UPC/EAN Decoding Options Depends on pin C3C Depends on pin I2C Enabled Enabled Depends on pin CST Enabled Enabled Depends on pin EX3 UPC/EAN Depends on pin UEE Depends on pin UE1 Depends on pins US2 and US5 Transmitted Standard Depends on pin CSS Depends on pins BR0 and BR1 Depends on pins PT0 and PT1 Depends on pin STB Enabled Depends on pin ICD Depends on pin C3C Depends on pin I2C Enabled Enabled Depends on pin CST Enabled Enabled Depends on pin EX3 UPC/EAN Depends on pin UEE Depends on pin UE1 Disabled Transmitted Standard Depends on pin CSS – 0s – Enabled – Codabar Start/ Stop Transmission Baud Rates Parity Stop Bits XON/XOFF Pacing† Transmitted Character Delay Enable Trailer Selection Single Read Mode Code ID Character Enable Good Read Beep Tone Selection LED Control †Not configurable. or none Depends on pins TR0 and TR1 Disabled Disabled High or low pitch Depends on pin GRB Auto Flash Mode CR, CR LF, HT, CR Disabled Disabled High or low pitch Depends on pin GRB Auto Flash Mode 4-40 Table 6. Summary of Commands – HBCR-1610 Series Feature Scanner Enable Hard Reset Self Test Failure Message Status Request Sound Tone Description When enabled, scans from a wand or a slot reader are decoded; otherwise, they are ignored. Resets the IC as though it were just powered up. An error message is transmitted over the serial port at 9600 baud at power up if the IC self test fails. Returns the version number of the software. Causes the IC to sound a tone of the selected pitch for 120 milliseconds. Stand Alone Decoder (Serial Mode) +5 V 8 x 10 KΩ C39 I25 UPC CDB C28 U2S U5S CSS BR0 BR1 STB EX3 C3C I2C CST GRB ICD UEE UE1 FRQ PT0 PT1 TR0 TR1 LED +5 V VCC EA IOM RST 1N4148 10 Ω BPR 2N2907 +5 V +5 V 10 µF 500 Ω +5 V 1N4148 10 KΩ 0.047 µF NOTES: 1. USE THE CORRECT CAPACITOR FOR EITHER A CRYSTAL OR A CERAMIC RESONATOR. SEE USERS MANUAL, PAGE 2-16. 2. SEE THE PIN DIAGRAMS FOR THE PINOUT OF THE DECODE IC. PIN NUMBERS VARY WITH PACKAGE. 3. VOLUME OF THE BEEPER CIRCUIT IS ADJUSTABLE BY VARYING THE VALUE OF THE 500 Ω POT. 4. THE EIGHT PULL UP RESISTORS SHOWN IN THE SCHEMATIC ARE ONLY NEEDED IF A DIP SWITCH IS USED. IF THE PINS ARE STRAPPED DIRECTLY TO GROUND OR VCC, THE RESISTORS ARE NOT NEEDED. 5. THE LOGIC LEVELS OF THE SDI SCANNER INPUT IS AS FOLLOWS: BLACK = HIGH, WHITE = LOW. 10 mH PIEZO BEEPER +5 V 150 Ω TxD RxD RTS CTS C1 10 9 11 12 1 3 4 C2 5 2N5088 47 KΩ T2IN T2OUT R2OUT R2IN T1IN T1OUT R1OUT R1IN C1+ V+ C1C2+ C2- 7 8 14 13 2 C3 TxD RxD RTS CTS +5 V MAX232 0 V LT1081 or LT1181 10 KΩ SDI SDI XTAL 1 XTAL 2 GND VCC 16 V- 6 GND 15 +5 V C4 SERIAL LEVEL CONVERTER HBCR-161X 4-41 Surface Mount IC Drying Whenever Vapor Phase or Infrared Reflow technologies are used to mount either of the surface mount packages, there is a possibility that previously absorbed moisture, heated very rapidly to the reflow temperatures, may cause the package to crack from internal stresses. 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 surface mount ICs should undergo one of the following baking cycles. The parts MUST then be mounted within 48 hours. 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, Hewlett-Packard cannot guarantee the performance and reliability of the parts. 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. Temperature 125°C 60°C Cycle A B Time 24 Hours 96 Hours Note: Cycle B must be done in an atmosphere of