TECHNICAL DATA
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Liquid Crystal Display Controller对联手抄报
The IN472-3-3 Liquid Crystal Display (LDC) Controller is a perpheral member of the COPS TM family, fabricated using CMOS technology. The IN472-3 drives a multiplexed liquid crystal directly.Data is loaded rially and is held in internal latches. The In472-3contains an on-chip oscillator and generates all the multi-level waveforms for back-planes and gment outputs on a triplex display.One IN472-3 can drive 36 gments multiplexed as 3 x 12 (41/2 digit display). Two IN472-3 devices can be ud together to drive 72 gments (3 x 24) which could be an 81/2 digit display.• Direct interface to TRIPLEX LCD • Low power dissipation (100 µW typ.)• Low cost
• Compatible with all COP400 processors • Needs no refresh from processor • On-chip oscillator and latches • Expandable to longer displays
• Software compatible with COP470 V.F.Display Driver Chip • Operates from display voltage
• MICROWIRE TM compatible rial I/O •
20-pin Dual-In-Line package
IN472-3
Pin Description
Pin Description
CS Chip lect
V DD Power supply (display voltage)GND Ground DI Serial data input SK Serial clock input中国名人励志故事
BP A Display backplane A (or oscillator in)BP B Display backplane B
BP C Display backplane C (or oscillator out)SA1∼SA4
lol精粹12 multiplexed outputs
PIN ASSIGNMENT
奴爱IN472-3
DC ELECTRICAL CHARACTERISTICS (GND=0 V, V DD=3.0 V to 5.5 V, T A= 0°C to 70°C
Note 1: Power supply current as measured in stand-alone mode with all outputs open and all inputs at V DD. Note 2: ∆V - 0.05V DD.
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IN472-3 Figure 1. Serial Load Timing Diagram
间接胆红素偏高Figure 2. Backplane and Segment Waveforms故事怎么写
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