RW1068 ETC-unknow, RW1068 Datasheet

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RW1068

Manufacturer Part Number
RW1068
Description
26com/84seg Driver & Controller For Dot Matrix Lcd
Manufacturer
ETC-unknow
Datasheet
RW1068 is a dot matrix LCD driver & controller LSI which is fabricated by low power CMOS
technology.
It can display 2 lines x 14 (6 x 12 dot format) When using the 2 lines x 14 (6 x 12 dot format), it can
display 2 lines of 7 Chinese character, Japanese kan-ji or Korean character. Therefore maximum 504
characters can be included. Customized codes are available.
-
- Internal drivers: 26 common and 84 segment output
- Easy interface with 4-bit or 8-bit MPU or standard 4 lines / 3 lines serial peripheral interface ( SPI )
- 6 x 12 dot matrix possible
- Bi-directional shift function
- All character reverse display
- Display shift per line
- Voltage converter for LCD drive voltage: 8 V max (2 times / 3 times)
- Various instruction functions
- Automatic power on reset
- Internal Memory
- Character Generator ROM (CGROM): 17,280 bits +18,432 bits x 3 (240 + 256 x 3 characters x 6 x
12 dot)
- Character Generator RAM (CGRAM): 64 x 8 bits (4 characters x 6 x12 dot)
- Icon RAM (SEGRAM): 16 x 8 bits (84 icons max.)
- Display Data RAM (DDRAM): 80 x 8 bits (80 characters max.)
- Low power operation
- Power supply voltage range: 2.7 ~ 5.5 V (VDD)
- LCD Drive voltage range: 3.0 ~ 7.2 V (V0 – Vss)
- CMOS process
- duty cycles: 1/25 (refer to Table 1.)
- Internal oscillator with an external resistor
- Low power consumption
- Bare chip available
Character type dot matrix LCD driver & controller
INTRODUCTION
FUNCTIONS
FEATURES
26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
RockWorks Technology Corp.
1
RW1068

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RW1068 Summary of contents

Page 1

... INTRODUCTION RW1068 is a dot matrix LCD driver & controller LSI which is fabricated by low power CMOS technology. It can display 2 lines dot format) When using the 2 lines dot format), it can display 2 lines of 7 Chinese character, Japanese kan-ji or Korean character. Therefore maximum 504 characters can be included ...

Page 2

... DRIVER & CONTROLLER FOR DOT MATRIX LCD RW1068 Serial Revision History Version Date Modify Time Characteristics 、 1.1 2006/04/11 AC Characteristics、DC Characteristics   Modify bias ration change from 1/5 1.2 2006/05/12 Value of RB change 62.5K from 56K in example circuit. 2006/07/05 Pad Configuration add Substrate connects to VSS 1 ...

Page 3

... Programmable duty cycles (Table 1) Display Line Numbers Duty Ratio 2 1/25 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD Single-chip Operation Displayable characters 2 lines of 14 characters ( dots ) 3 RockWorks Technology Corp. RW1068 Possible icons 84 ...

Page 4

... Character Character RAM Generator Generator ( SEGRAM) ROM RAM 16 bytes (CGROM) (CGRAM) 9600 bits bytes 5/6 Parallel / Serial Converter 4 RockWorks Technology Corp. RW1068 Timing Generator 34 bit Shift Register bit 10 84 bit 84 bit Latch Shift Circuit Register 10 Cursor and Blink controller 5/6 COM1 ~ ...

Page 5

... DRIVER & CONTROLLER FOR DOT MATRIX LCD Chip size: 4856 x 3455 Pad Pitch: 105~130 Pad size Chip thickness: 482.6 Unit: µm Substrate connects to VSS 5 RockWorks Technology Corp. RW1068 113 SEG26 112 SEG25 111 SEG24 110 SEG23 109 SEG22 108 ...

Page 6

... CHIP LAYOUT PIN 1 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD Digital Analog 6 RockWorks Technology Corp. RW1068 ...

Page 7

... VDD 2323 44 OSC2 2323 45 OSC1 2323 46 XRESET 2323 47 PSB 2323 48 VR 2323 * “RW1068” Marking: easy to find the PAD No: 1 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD PAD PAD COORDINATE NU NAME Y MBE X R -1623 49 VSS 2323 -1623 50 RS 2323 ...

Page 8

... To use the voltage converter (2 times/ 3 times), these pins must be connected to the external capacitance. input (Please see page 36 for more detail) Initialized to Low times Voltage converter output voltage 8 RockWorks Technology Corp. RW1068 INTERFACE Power supply - LCD LCD LCD External resistor/oscillator (OSC1) External ...

Page 9

... In 8-bit bus mode, used as high order bi-directional data bus. In case of 4-bit bus mode, used as both high and low order. DB7 used for Busy Flag output. In serial mode, used for data input pin. 9 RockWorks Technology Corp. RW1068 INTERFACE MPU MPU MPU MPU ...

Page 10

... RockWorks Technology Corp. RW1068 Description DB1 DB0 Write “20H” to DDRAM. and set 0 1 DDRAM address to “00H” from AC. Set DDRAM address to “00H” from AC and return cursor to its original 1 X position if shifted. The contents of DDRAM are not changed ...

Page 11

... RE( RE(1) 11 RockWorks Technology Corp. RW1068 Description DB1 DB0 Cursor or display shift. S/C = “1” : display shift S/C = “0” : cursor shift, R/L = “1” : shift to right, R/L = “0” : shift to left. (when DC = “1“ ) Determine the line for display shift. ...

Page 12

... AC3 AC2 AC1 RockWorks Technology Corp. RW1068 Execution Description ( fosc = 270 DB0 Set CGRAM address in address AC0 counter. Set SEGRAM address in address AC0 counter. Set DDRAM address in address AC0 counter. SD0 Set data length for 3 line SPI Can know internal operation is ready or not by reading BF ...

Page 13

... Chinese character 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 13 RockWorks Technology Corp. RW1068 ...

Page 14

... Korean Character 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 14 RockWorks Technology Corp. RW1068 ...

Page 15

... Character 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 15 RockWorks Technology Corp. RW1068 ...

Page 16

... When BF = "High", it indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read, when RS = Low and High (Read Instruction Operation), through DB7 Before executing the next instruction, be sure that BF is not High. 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD Operation 16 RockWorks Technology Corp. RW1068 ...

Page 17

... DDRAM stores display data of maximum bits (80 characters). DDRAM address is set in the address counter (AC hexadecimal number. (refer to Figure 1.) MSB AC6 AC5 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD AC4 AC3 AC2 Figure 1. DDRAM Address 17 RockWorks Technology Corp. RW1068 LSB AC1 AC0 ...

Page 18

... DRIVER & CONTROLLER FOR DOT MATRIX LCD (After Shift Left (After Shift Right) 18 RockWorks Technology Corp. RW1068 ← Display Position ← DDRAM Address ...

Page 19

... When each COM is selected by 26 bit common register, segment data also output through segment driver from 84 bit segment latch. In case of 2 line (6 dots width) display mode, COM0-COM25 have 1/25 duty. 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 19 RockWorks Technology Corp. RW1068 ...

Page 20

... RockWorks Technology Corp. RW1068 CGRAM Data Pattern Number Pattern ...

Page 21

... S67 S68 B1 B0 S73 S74 B1 B0 S79 S80 - - - - - - - - Binking Port 6- dot font width No blink No blink RockWorks Technology Corp. RW1068 S10 S11 S12 S15 S16 S17 S18 S21 S22 S23 S24 S27 S28 S29 S30 S33 ...

Page 22

... DRIVER & CONTROLLER FOR DOT MATRIX LCD 6 Dot Font Width Figure 3. Relationship between SEGRAM and Segment Display 22 RockWorks Technology Corp. RW1068 ...

Page 23

... INSTRUCTION DESCRIPTION OUTLINE To overcome the speed difference between internal clock of RW1068 and MPU clock, RW1068 performs internal operation by storing control information DR. The internal operation is determined according to the signal from MPU, composed of read/write and data bus. Instruction can be divided largely four kinds; ...

Page 24

... Power down mode enable bit set instruction “High”, it makes RW1068 suppress current consumption except the current needed for data storage by executing next three functions. 1. Makes the output value of all the COM / SEG ports VSS. 2. Disable voltage converter to remove the current through the divide resistor of power supply. ...

Page 25

... ON/OFF control instruction becomes don't care condition. If fOSC has frequency of 270kHz, inversion has 70 ms intervals. FW: font size select bit. When FW=1, font width is 6 dot and font height is 12 dots. set RW1068 in correct mode. FW=0 is not allow) 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD DB6 DB5 ...

Page 26

... Shift all the display to the left, cursor moves according to the display 1 1 Shift all the display to the right, cursor moves according to the display 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 6 - bit CGRAM Character Font (6-dot) CGRAM DB6 DB5 DB4 Operation 26 RockWorks Technology Corp. RW1068 12 -bit DB3 DB2 DB1 S/C R/L - DB0 - ...

Page 27

... DRIVER & CONTROLLER FOR DOT MATRIX LCD DB6 DB5 DB4 DB6 DB5 DB4 COM1 ~ COM12 COM13 ~ COM24 27 RockWorks Technology Corp. RW1068 DB3 DB2 DB1 x x CB1 DB3 DB2 DB1 0 0 DS2 Operation The parts of display line the Corresponds to enabled Common signal can be shifted. ...

Page 28

... SEGRAM blink. The quantity of blink is assigned the highest 2 bit of CGRAM/SEGRAM. 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD DB6 DB5 DB4 DB6 DB5 DB4 RockWorks Technology Corp. RW1068 DB3 DB2 DB1 X RE(0) DC DB3 DB2 DB1 X RE(1) BE DB0 REV DB0 0 ...

Page 29

... In 3 lines SPI mode, set Data length command indicates the length of data which, are going to be received by RW1068. User should set data length before display data sent. Each data length instruction maximum can set 80 bytes of data. The table below shows how SD bits set the data length. ...

Page 30

... BF This instruction shows whether RW1068 is in internal operation or not. If the resultant BF is High, it means the internal operation is in progress and you have to wait until Low, and then the next instruction can be performed. In this instruction you can read also the value of address counter. ...

Page 31

... INTERFACE WITH MPU RW1068 can transfer data in bus mode (4-bit or 8-bit) or serial mode with MPU. So you can use any type bit MPU. In case of 4-bit bus mode, data transfer is performed by two times to transfer 1 byte data. • When interfacing data lengths are 4-bit, only 4 ports, from DB4 - DB7, are used as data bus. ...

Page 32

... Figure 5. Example of 8-bit Bus Mode Timing Sequence Interface with 4-bit MPU If 4-bit MPU is used, RW1068 can connect directly with this. In this case, port E, RS, R/W and DB4 - DB7 need to interface each other. The transfer is performed by two times. Example of timing sequence is shown below. ...

Page 33

... Example of timing sequence Note: Following is the master SPI clock mode of MPU. Idle state for clock is a high level,data is clocked into RW1068 on the rising edge of SCLK. Intel 8051 interface (Serial) 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 33 RockWorks Technology Corp ...

Page 34

... Example of timing sequence Note: Following is the master SPI clock mode of MPU. Idle state for clock is a high level,data is clocked into RW1068 on the rising edge of SCLK. Intel 8051 interface (Serial) 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 34 RockWorks Technology Corp ...

Page 35

... Enable Shift Instruction DS=00 Set data length Instruction SD = 000000 INITIALIZING BY HARDWARE RESET INPUT When XRESET pin = "Low", RW1068 can be initialized like the case of power on reset. During the power on reset operation, this pin is ignored. 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 35 RockWorks Technology Corp. ...

Page 36

... DB2 DB1 DB0 DB3 DB2 DB1 DB0 DB3 DB2 DB1 DB0 RockWorks Technology Corp. RW1068 0 Display OFF D 1 Display ON 0 Cursor OFF C 1 Cursor ON 0 Blink OFF B 1 Blink ON 0 Decrement I/D 1 Increment 0 Display shift disable S 1 ...

Page 37

... Wait time> 100ms Entry Mode Set RS R/W DB7 DB6 DB5 DB4 I/D Initialization end 37 RockWorks Technology Corp. RW1068 Black/white inverting of 0 B/W Black/white inverting (RE=0) 0 Display OFF D 1 Display Cursor OFF I ...

Page 38

... DB4 DB3 DB2 DB1 DB0 DB4 DB3 DB2 DB1 DB0 I RockWorks Technology Corp. RW1068 0 Display OFF D 1 Display ON 0 Cursor OFF C 1 Cursor ON 0 Blink OFF B 1 Blink ON 0 Decrement I/D 1 Increment 0 Display shift disable S 1 Display shift enable ...

Page 39

... DRIVER & CONTROLLER FOR DOT MATRIX LCD V0 39 RockWorks Technology Corp. RW1068 VDD 2 = ∗ RB) ...

Page 40

... DRIVER & CONTROLLER FOR DOT MATRIX LCD Table 7. Duty Ratio and Power Supply for LCD Driving Item Number of lines Duty ratio Bias RockWorks Technology Corp. Data 2 1/25 1/6.7 40 RW1068 ...

Page 41

... Timing Characteristics Writing data from MPU to RW1068 VIH1 RS VIL1 DB0-DB7 Reading data from RW1068 to MPU VIH1 RS VIL1 RW E DB0-DB7 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD DSW t r Valid data DDR RockWorks Technology Corp. ...

Page 42

... Notes: t compensates for the power oscillation period caused by momentary power supply oscillations. OFF Specified at 4.5V for 5V operation,and at 2.7V for 3V operation. For if 4.5V is not reached during 5V operation,teh internal reset circuit will not operate normally. 0.2V t OFF t ≧1mS OFF 42 RockWorks Technology Corp. RW1068 0.2V ...

Page 43

... In 6800 interface(TA = 25℃, VCC =2.7V ) Symbol Characteristics f OSC Frequency OSC f External Frequency EX Duty Cycle T ,T Rise/Fall Time R F Write Mode (Writing data from MPU to RW1068) T Enable Cycle Time C T Enable Pulse Width Enable Rise/Fall Time Pin Address Setup Time AS ...

Page 44

... In 6800 interface(TA = 25℃, VCC =5V ) Symbol Characteristics f OSC Frequency OSC f External Frequency EX Duty Cycle T ,T Rise/Fall Time R F Write Mode (Writing data from MPU to RW1068) T Enable Cycle Time C T Enable Pulse Width Enable Rise/Fall Time Pin Address Setup Time AS ...

Page 45

... In Serial interface(TA = 25℃, VCC = 2.7V ) Symbol Characteristics f OSC Frequency OSC f External Frequency EX Duty Cycle T ,T Rise/Fall Time R F Write Mode (Writing data from MPU to RW1068) T Enable Cycle Time C T Enable Pulse Width Enable Rise/Fall Time Pin Address Setup Time AS ...

Page 46

... In Serial Interface (TA = 25℃, VCC = 5V) Symbol Characteristics f OSC Frequency OSC f External Frequency EX Duty Cycle T ,T Rise/Fall Time R F Write Mode (Writing data from MPU to RW1068) T Enable Cycle Time C T Enable Pulse Width Enable Rise/Fall Time Pin Address Setup Time AS ...

Page 47

... I = -0.1mA 0.1mA -0.04mA 0.04mA 4V 0.05mA LCD 4V 0.05mA LCD RockWorks Technology Corp. RW1068 Value -0.3 to +5.5 Vss+7.0 to Vss-0 125 C Min. Typ. Max. Unit 2.7 - 4.5 V 3 0.45 0.6 mA 0.7Vcc ...

Page 48

... V0 - Vss f = 270KHz OSC V =5. -0.1mA 0.1mA -0.04mA 0.04mA 4V 0.05mA LCD 4V 0.05mA LCD RockWorks Technology Corp. RW1068 Min. Typ. Max. Unit 4.5 - 5.5 V 3 0.5 0 -0 1 ...

Page 49

... DRIVER & CONTROLLER FOR DOT MATRIX LCD RW1068 Application Circuit: (2Line x 10Channels) – RW1060*1 (2Line x 13Channels – RW1060*2, 2Line x 17Channels – RW1060*3, 2Line x 20Channels – RW1060*4) RW1068+RW1060 mode only available in 4-bit interface 49 RockWorks Technology Corp. RW1068 ...

Page 50

... THE MPU INTERFACE CIRCUIT The RW1068 Series can be connected to 6800 Series MPUs. Moreover, using the serial interface it is possible to operate the RW1068 series chips with fewer signal lines. The display area can be enlarged by using multiple RW1068 Series chips. When this is done, the chip select signal can be used to select the individual Ics to access ...

Page 51

... Series MPUs (2) 6800 4 bits Series MPUs 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD RW1068 RW1068 51 RockWorks Technology Corp. RW1068 ...

Page 52

... Using the Serial Interface—For 4 SPI (4) Using the Serial Interface—For 3 SPI 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD RW1068 RW1068 52 RockWorks Technology Corp. RW1068 ...

Page 53

... DRIVER & CONTROLLER FOR DOT MATRIX LCD 53 RockWorks Technology Corp. RW1068 ...

Page 54

... Code Bank1 (0B-002) B7-B4 0000 0001 B3-B0 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 0010 0011 0100 54 RockWorks Technology Corp. RW1068 0101 0110 0111 ...

Page 55

... Code Bank1 (0B-002) B7-B4 1000 1001 B3-B0 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 1010 1011 1100 55 RockWorks Technology Corp. RW1068 1101 1110 1111 ...

Page 56

... Code Bank2 (0B-002) B7-B4 0000 0001 B3-B0 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 0010 0011 0100 56 RockWorks Technology Corp. RW1068 0101 0110 0111 ...

Page 57

... Code Bank2 (0B-002) B7-B4 1000 1001 B3-B0 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 1010 1011 1100 57 RockWorks Technology Corp. RW1068 1101 1110 1111 ...

Page 58

... Code Bank3 (0B-002) B7-B4 0000 0001 B3-B0 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 0010 0011 0100 58 RockWorks Technology Corp. RW1068 0101 0110 0111 ...

Page 59

... Code Bank3 (0B-002) B7-B4 1000 1001 B3-B0 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 26COM/84SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD 1010 1011 59 RockWorks Technology Corp. RW1068 1100 1101 1110 1111 ...

Page 60

... VDD R2 R3 1K/0805 1K/0805 PSBP XRESETP RES OSC1 91K/0805 13 Title 14 RockWorks OSC2 Size Number RW1068 B Date: 23-Apr-2007 File: C:\Documents and Settings\WillTai\ 桌面 \99se\MyDesign.ddb 100K/0805 0.1U/0805 0.1U/0805 B A Revision Sheet of Drawn By: 6 ...

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