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HI-8151 Datasheet(PDF) 1 Page - Holt Integrated Circuits |
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HI-8151 Datasheet(HTML) 1 Page - Holt Integrated Circuits |
1 / 8 page HI-8050/51, HI-8150/51 CMOS HIGH VOLTAGE DISPLAY DRIVER GENERAL DESCRIPTION The HI-8050, HI-8051, HI-8150 and HI-8151 are CMOS integrated circuits designed for high voltage LCD display drive applications. The HI-8050 & HI-8051 have TTL logic inputs whereas the HI-8150 & HI-8151 have CMOS logic inputs. They drive up to 38 segments at voltages between +5 and -30 volts. The optional voltage converter on the HI-8050 & HI-8150 can be used to generate the negative display drive voltage. All products have test inputs to facilitate opens and shorts testing as well as automatic blanking of the display if the +5V power is lost. The HI-8050 and HI-8150 are designed to replace the HI-8010 and HI-8020 devices in all 5 volt applications. They offer significantly enhanced ESD protection along with a considerably faster serial input data rate. The data is serially clocked into the device on the negative edge of the clock and latched in parallel to the segment outputs on the high to low transition of the load input. Serial output data changes on the positive edge of the clock allowing the cascading of multiple drivers for larger dis- plays. The device layout supports all previous pinouts of the HI-8010/HI-8020 products. In addition, new technology and features afford new packaging options. Consult your Holt Sales Representative to explore the possibilities. ! ! Dichroic Liquid Crystal Displays Standard Liquid Crystal Displays ! ! 5 Volt Serial Data to Parallel High Voltage MEMS Drivers APPLICATIONS ! ! ! ! ! ! ! ! ! 4 MHz serial input data rate 38 segment outputs Cascadable 5 Volt inputs translated to 35 Volts Test pins allow hardware all "ON", all "OFF" or alternating Monitors 5 volt supply and forces all segments to "OFF" condition if lost Negative voltage converter available on-chip CMOS low power Military processing available FEATURES PAD CONFIGURATION (Top View) FUNCTIONAL BLOCK DIAGRAM Oscillator Divider Volt age Tr anslator High Volt age Buf f er 38 St age Shif t R egister 38 Bit L atch Volt age Tr anslators High Volt age Drivers Þ BPOUT 38 SEGMENTS DIN LD BPIN BPOSC Þ Þ Þ Þ Þ Þ CL CS 8020OPT Þ DATA IN CLK LE Þ DOUT38 DOUT32 DOUT30 CONTROL LOGIC February 2003 BPIN BPOSC VDD N/C CONVOSC CONVOUT VEE S37 S38 S1 S2 S3 S4 S5 S6 S7 S27 S26 S25 S24 S23 S22 S21 S20 DOUT38 DOUT32 DOUT30 T2 T1 N/C BPOUT N/C HI-8050PQI HI-8150PQI HI-8050PQT & HI-8150PQT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 64 Pin plastic PQFP (See page 6 for HI-8051 & HI-8151pin configurations) HOLT INTEGRATED CIRCUITS www.holtic.com (DS8050 Rev. D) 02/03 |
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