EPL09060H Ver la hoja de datos (PDF) - ELAN Microelectronics

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EPL09060H

9 COM/ 60 SEG LCD Driver

ELAN Microelectronics 

Contents

Contents

1 General Description .................................................................................................. 5

2 Features ..................................................................................................................... 5

3 Applications............................................................................................................... 6

4 Pin Configuration (Package) .................................................................................... 6

5 Functional Block Diagram........................................................................................ 8

6 Pin Description.......................................................................................................... 9

7 Functional Description ........................................................................................... 12

7.1 MPU Interface ...................................................................................................12

7.1.1 Chip Select ........................................................................................................12

7.1.2 Selecting the Interface Type..............................................................................13

7.2 Data Transfer ....................................................................................................14

7.2.1 Display Data RAM (DDRAM) ............................................................................15

7.2.2 Programmable Duty Ratio.................................................................................16

7.3 LCD Driver Circuits ...........................................................................................17

7.3.1 Display Data Latch Circuit .................................................................................17

7.3.2 Shift Register Circuit..........................................................................................18

7.3.3 Common Driver Circuit ......................................................................................20

7.3.4 Segment Driver Circuit ......................................................................................20

7.3.5 LCD Driving Waveform......................................................................................21

7.4 Internal Power Circuits......................................................................................22

7.4.1 Voltage Converter Circuits.................................................................................23

7.4.2 Voltage Regulator Circuits.................................................................................23

7.4.3 Voltage Follower Circuits...................................................................................25

7.4.4 Oscillator ...........................................................................................................26

7.4.5 Oscillator Frequency .........................................................................................26

7.5 Reset Circuit .....................................................................................................27

8 Control Register ...................................................................................................... 28

9 Application Information .......................................................................................... 37

9.1 Instruction Procedure Examples .......................................................................37

9.1.1 Initial Setup........................................................................................................37

9 Relationship between Setting and Common/Display RAM ................................. 42

10 Absolute Maximum Ratings ................................................................................... 43

11 DC Characteristics .................................................................................................. 44

12 AC Characteristics .................................................................................................. 45

13 Application Circuit .................................................................................................. 53

Product Specification (V1.0) 12.28.2005

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