MSM6555B-XX OKI [OKI electronic componets], MSM6555B-XX Datasheet

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MSM6555B-XX

Manufacturer Part Number
MSM6555B-XX
Description
DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT SEGMENT DRIVER
Manufacturer
OKI [OKI electronic componets]
Datasheet
E2B0034-27-Y2
¡ Semiconductor
¡ Semiconductor
MSM6555B-xx
DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT
SEGMENT DRIVER
GENERAL DESCRIPTION
The MSM6555B-xx is a dot matrix LCD controller with 17-dot common driver and 80-dot
segment driver comprising a display RAM, character generation ROM, LCD bias generation
circuit and control circuit.
The LCD driving bias generation circuit incorporated in the MSM6555B-xx allows LCD bias
voltage to be obtained merely by providing a specified capacitance externally.
The MSM6555B-xx can display the arbitrator (arbitrary character) patterned on the LCD panel.
FEATURES
• Serial interface with microcontroller
• Dot matrix LCD controller with 17-dot common driver and 80-dot segment driver (up to 16
• 256 character ROM (5 ¥ 7 dots)
• 1/9 duty (1 line; character + cursor + arbitrator) or 1/17 duty (2 lines; character + cursor, 1 line;
• LCD driving bias voltage generation circuit
• 80-dot arbitrator
• Low standby current
• Gold bump chip
• Optional when TCP is adopted
digits ¥ 2 lines can be displayed)
arbitrator) display
Previous version: Mar. 1996
This version: Nov. 1997
MSM6555B-xx
1/27

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MSM6555B-XX Summary of contents

Page 1

... DOT MATRIX LCD CONTROLLER WITH 17-DOT COMMON DRIVER AND 80-DOT SEGMENT DRIVER GENERAL DESCRIPTION The MSM6555B- dot matrix LCD controller with 17-dot common driver and 80-dot segment driver comprising a display RAM, character generation ROM, LCD bias generation circuit and control circuit. ...

Page 2

... RST TEST C1 to C17 17 COMMON SEGMENT DRIVER DRIVER 1/4 BIAS SS1 V , SS2 3 V SS4 V SHIFT REGISTER SS5 CHARACTER GENERATOR RAM ROM (448 BITS) (256 ¥ 5 ¥ 7 DOTS TIMING GENERATOR SERIAL/PARALLEL CS C/D MSM6555B- S80 80 80 LATCH 80 BLINK CONTROLLER INTERFACE SHT SO SI 2/27 ...

Page 3

... 25° — — STG Condition V V – — INT T — op MSM6555B-xx Rating Unit Applicable pin –0 0.3 V All inputs — –55 to +150 °C — Range Unit Applicable pin 2.5 to 3.3 V ...

Page 4

... Min. Typ. Max. = –2.0V –1.1 –1.0 –0.9 –2.5 –2.15 –1.7 = –2.0V –3.1 –3.0 –2.9 = –2.0V –4.2 –4.0 –3.8 MSM6555B- ±10 –10 to +70°C) DD Unit Applicable pin Input pins except Input pins except Input pins except TEST and XT ...

Page 5

... 0 0 MSM6555B-xx – ±10 –10 to +70°C) SS Min. Max. Unit 300 — ns 200 — ns — 200 ns 0 200 ns 0 200 ns 200 — ns 200 — ns — — ...

Page 6

... Setting this pin to "L" level during the command execution will cause operation errors. When power is turned on, the RST pin must be set to "L". This pin is based on direct input reset method. Current consumption during the process of "L" input, so fixed "L" input must not be set. MSM6555B-xx 6/27 ...

Page 7

... During the 1/9 duty operation are used with C10 to C17 kept open. Æ See "Relation between Display Screen and Common and Segment Outputs". • CC1 These are pins to connect the capacitor to double the battery voltage. They are connected with the capacitor of 0.1 mF. MSM6555B-xx 7/27 ...

Page 8

... These pins are used to connect the capacitors for electric charge distribution to generate LCD bias voltage with reference to V They are connected with the capacitor of 0.1 mF. S6 S10 . DD for electric charge distribution among capacitors and DD . SS2, 3 MSM6555B- C10 C16 C17 S76 S80 Common ...

Page 9

... SS2 SS2 SS2, 3 SS2 SS2, 3 SS2, 3 SS2, 3 SS2, 3 Command contrast control range the positive pin of the battery, and the V DD MSM6555B-xx in combination with the Contrast to the SS 9/27 ...

Page 10

... MSM6555B- Don't Care Comment • Addresses from • For the functions of I1 and I0, see the next page. • Setting the source oscillation frequency conditions • Valid only for 1/19 duty • Switching between display addresses 0 to 15, and 16 and 31 • ...

Page 11

... Hereafter, equivalent to writing blank code at each AINC execution 1 0 Hereafter, cursor off and blink-cancellation are carried out at each AINC execution 1 1 Function Operation is cancelled (No operation) Both of above two operations are indicated MSM6555B-xx Comment — Used to mechanical RAM clear when power is turned on 11/27 ...

Page 12

... K/EXT = "H" : The blinking frequency when 32.768 kHz is input. When another frequency is input, the blinking frequency is proportionate to that frequency. 32 K/EXT = "L" (F1, F0) = (0, 0): The blinking frequency when 76.8 kHz is input. When another frequency is input, the blinking frequency is proportionate to that frequency. Source frequency inside IC XT/2 XT/4 XT/8 XT/16 MSM6555B-xx 12/27 ...

Page 13

... This is a command to control the impedance of SO output pin. When "1" is set, the display data is output from the SO pin. When "0" is set, the SO pin becomes a high impedance ¥ 32.768 kHz / input frequency/source frequency inside IC serving as bases for LCD. The contrast is SS2 SS2, 3 MSM6555B-xx 13/27 ...

Page 14

... This is a command to blink the cursor, and is done to the address indicated by the address pointer. It should be noted, however, that blinking does not occur to the address where cursor display is not specified. Blinking starts when the cursor display is specified. MSM6555B-xx level is output to both DD 14/27 ...

Page 15

... When display data are input and the following command is executed, the address pointer is incremented by one: AINC, WCHB, CCHB, WCS, CCS, WCSB, CCSB, WCCB and CCCB • Character Blink Method The character on-state alternates with the character dot all-display-off state, as illustrated below: Example of blinking (Character "A") "A" All-display-off state MSM6555B-xx 15/27 ...

Page 16

... Input timing (command input, display code and data input) CS C/D MSB SI SHT "Z" SO MSB Non-BUSY/BUSY Starting of the CS provides input synchronization in the 8-bit unit. Subsequent CS rising edge is not necessary if the 8-bit unit is maintained. DON'T CARE (1) Max 2 ¥ {COMMON 1-line display time} MSM6555B-xx C/D LSB BUSY (1) LSB 16/27 ...

Page 17

... Non- BUSY/BUSY Note set to "L" and is again set to "H" without completion of read-out 8 bits, the previous uncompleted portion will be output continuously, the extra read-out data will be "0". DON'T CARE (1) Max 2 ¥ {COMMON 1-line display time} MSM6555B-xx C/D BUSY LSB (1) ...

Page 18

... The following shows the relationship between the input data and display of Arbitrators: S5n+1 S5n Segment Serial input data from require dummy input. Either “1” or “0” may be used for input data from D7 to D5. MSM6555B-xx Arbitrator Character I Cursor I Character II Cursor II Arbitrator Character I Cursor I Character II Cursor II 18/27 ...

Page 19

... MSM6555B-xx 30H 38H 31H 39H 32H 3AH 33H 3BH 34H 3CH 35H 3DH 36H 3EH 37H 3FH 19/27 ...

Page 20

... MSM6555B-xx 70H 78H 71H 79H 72H 7AH 73H 7BH 74H 7CH 75H 7DH 76H 7EH 77H 7FH 20/27 ...

Page 21

... A0H A8H 99H A1H A9H 9AH A2H AAH 9BH A3H ABH 9CH A4H ACH 9DH A5H ADH 9EH A6H AEH 9FH A7H AFH MSM6555B-xx B0H B8H B1H B9H B2H BAH B3H BBH B4H BCH B5H BDH B6H BEH B7H BFH 21/27 ...

Page 22

... D8H E0H E8H D9H E1H E9H DAH E2H EAH DBH E3H EBH DCH E4H ECH DDH E5H EDH DEH E6H EEH DFH E7H EFH MSM6555B-xx F0H F8H F1H F9H F2H FAH F3H FBH F4H FCH F5H FDH F6H FEH F7H FFH 22/27 ...

Page 23

... F0). approximately the case of 1/9 duty approximately 68 the case of 1/17 duty approximately 8. the case of 1/9 duty approximately 8 the case of 1/17 duty 17 (common) = 855 ms 68.8 (Hz) 8.13 (Hz) 9 (common) = 13.67 ms MSM6555B-xx 23/27 ...

Page 24

... RST pin method and Stop command method; the state before the standby mode is held. The standby mode is released when set by serial input, independently of C/D input setting. The command or data input in this case is also valid. RST pin method Holding of the value before standby mode MSM6555B-xx Stop command method 24/27 ...

Page 25

... LCD PANEL C17 S1 to S80 DD SS1 , SS2 3 SS4 SS5 MSM6555B-xx C1 CC1 C2 CC2 SS6 SHT C PORT MSM6555B-xx 22pF 32K/EXT 9D/17D DD SS RST SI TEST OPEN 25/27 ...

Page 26

... MSM6555B- Pad Name x (mm) y (mm 740 –2325 SS2 3 V 920 –2325 SS1 V 1100 –2325 CC2 V 1280 –2325 C2 V 1460 –2325 ...

Page 27

... MSM6555B-xx Pad Name x (mm) y (mm) S41 –1455 2325 S42 –1621 2325 S43 –1787 2325 S44 –1953 2325 S45 –2119 2325 2325 S46 – ...

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