Dot Matrix LCD Controller Driver

PF22-7 SED27F/D Dot Matrix LCD Controller Driver /, / or /6 Duty Dot Matrix Drive ROM 24 characters Built-in Character Generator ROM and RAM ( RAM characters ) Maximum Simultaneous Display of Characters (With exteion LCD driver) DESCRIPTION The SED27F/D is a dot matrix LCD controller/driver which is dedicated to character display. It is capable of displaying up to characters under 4-bit/-bit MPU control. The built-in character generator ROM has an extended capacity of 24 different characters, each being generated in a 5 dots font compatible with a / duty. In addition, the SED27F/D contai 64 bytes of character generator RAM in which the user can store different characters, each coisting of 5 dots. These memory features offer high flexibility in character display. The guaranteed minimum LCD driving voltage is 3, and this makes the SED27F/D suitable for driving low voltage LCDs. FEATURES Display RAM... bytes ( characters) Character generator ROM... 24 characters (Able to 256 characters) Character generator RAM... characters Built-in CR oscillator, Built-in power-on reset circuit Maximim display dimeion... 4 characters 2 lines, characters line (When accompanied with SEDF LA /D LA, SED6F OA /D OA ) /, / or /6 duty matirx drive (fixed by command) 2 flame AC wave-form drive High-speed bus interface with 4-bit/-bit MPU Powerful display control itructio Character... 5 7 dots+cursor line (5 dots also possible) 5 dots+cursor line 6 Kinds of character font Single power supply... 5±% (Logic) Low LCD driving voltage... DD - 5 > =3. Package... SED27F: QFP5-pin (plastic) SED27D: Die form (Al pad) BLOCK DIAGRAM OSC OSC2 Itruction Decoder Cursor/ Brink Control DB DB7 ~ E R/W DD SS 2 3 4 5 I/O Buffer I/O Control Itruction Register Data Register 7 M P X Character Generator RAM (CG RAM) 64 Bytes Address Counter ACC M P X 5 Refresh Address Counter 7 M P X Display Data RAM DD RAM Bytes Character Generator RAM (CG RAM) 5 24 Byts 5 5 Oscillation Circuit Timing Generator Shift Register 6 Bits Common Driving Output Circuit Segment Driving Output Circuit Latch Circuit 4 Bits FR COM COM6 SEG SEG4 ~ ~ Parallel/Serial Data Converter Shift Register 4 Bits D SEIKO EPSON CORPORATION

SED27F/D PIN CONFIGURATION QFP5-pin SEG39 SEG4 COM6 COM5 COM4 COM3 COM2 COM COM COM9 COM COM7 COM6 COM5 COM4 COM3 COM2 COM DB7 DB6 DB5 DB4 DB3 DB2 SEG3 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG3 SEG3 SEG29 SEG2 SEG27 SEG26 SEG25 SEG24 SEG23 65 6 55 5 45 4 7 35 SED27F 75 INDEX 3 5 5 2 25 DB DB E R/W D FR DD 5 4 3 2 OSC2 SEG22 SEG2 SEG2 SEG9 SEG SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG SEG SEG9 SEG SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG SS OSC Unit: mm PIN DESCRIPTION Symbol R/W E DB to DB7 FR DO COM to COM6 SEG to SEG4 to 5 DD SS OSC OSC2 No. of signals 6 4 5 2 Function Register select signal Read/write select signal Read/write execute signal Data bus Data latching pulse Data trafer clock LCD AC driving signal Serial data Common outputs COM9 to COM6: non-select for / duty COM2 to COM6: non-select for / duty Segment outputs > LCD driving power ( 5 = SS ) +5 (GND) Used to connect resistor (typ. 9K-ohms) for oscillation; OSC is for external clock input. R/W E Operation Itruction write cycle Busy flag read cycle Address counter read cycle DD RAM or CG RAM data write cycle DD RAM or CG RAM data read cycle ABSOLUTE MAXIMUM RATINGS Rating Supply voltage () Supply voltage (2) Input voltage Output voltage Power dissipation Operating temperature Storage temperature Soldering temperature and time Symbol DD to 5 I O P D T opr T stg T sol Note: The following condition must always hold true: DD > = > = 2 > = 3 > = 4 > = 5 alue -.3 to 7. -.3 to DD +.3 -.3 to DD +.3 -.3 to DD +.3 3-2 to 75-65 to 5 26 C s (at lead) ( SS =, Ta=25 C) Unit mw C C 2

SED27F/D ELECTRICAL CHARACTERISTICS DC Characteristics Characteristic "H" level input voltage () "L" level input voltage () "H" level input voltage (2) "L" level input voltage (2) "H" level output voltage () "L" level output voltage () "H" level output voltage (2) "L" level output voltage (2) Driver-on resistor (COM) Driver-on resistor (SEG) I/O leakage current Pull-up MOS current Supply current External clock operation External clock operating frequency Symbol IH IL IH2 IL2 OH OL OH2 OL2 R COM R SEG I IL -I P I OP f EXTCL External clock duty Duty External clock rise time tr EXTCL External clock fall time tf EXTCL Internal clock operation (Rf oscillation) Oscillation frequency f OSC Internal clock operation (Ceramic filter oscillation) Oscillation frequency f OSC LCD driving voltage LCD Condition I OH =-.25mA I OL =.6mA I OH =-.4mA I OL =.4mA COM - n =.5 SEG - n =.5 I = to DD DD =5 Rf oscillation, from external clock DD =5, fosc=f CP =27kHz R f =9K ±2% Ceramic filter DD - 5 Applicable Pin DB~DB7, R/W, E OSC DB~DB7 DO COM~6 SEG~4 DD ( DD =5.±%, SS =, Ta=-2 to 75 C) Min. 2. SS DD -. SS 2.4.9 DD 5 25 45 - - 9 245 3. Typ. 2 2.5 25.5 25 5 27 25 Max. DD. DD..4. DD 25. 35 55.2.2 35 255 DD Unit k k A A ma khz % S S khz khz AC Characteristics Read Cycle ( DD =5.±%, SS =, Ta=-2 to 75 C) Characteristic Symbol Condition Min. Typ. Max. Unit Enable cycle time t cyce 5 Enable "H" level pulse width t WEH 22 Enable rise/fall time t re, t fe 25, R/W setup time t AS 4, R/W address hold time t AH Read data output delay t RD C L =pf 2 Read data hold time t DHR 2 Write Cycle ( DD =5.±%, SS =, Ta=-2 to 75 C) Characteristic Symbol Condition Min. Typ. Max. Unit Enable cycle time t cyce 5 Enable "H" level pulse width t WEH 22 Enable rise/fall time t re, t fe 25, R/W setup time t AS 4, R/W address hold time t AH Data setup time t DS 6 Write data hold time t DH 3

SED27F/D Timing Chart Read Cycle IH IL IH IL t AS t AH R/W IH IH t WEH t AH E IL t fe IH t RD IH t fe IL t DHR IL DB to DB7 OH OL Significant Data OH OL t cyce Write Cycle IH IL IH IL t AS t AH R/W IL IL t WEH t AH E IL t fe IH IH t DS t fe IL t DH IL DB to DB7 IH IL Significant Data IH IL t cyce DISPLAY COMMAND Parameter CLEAR DISPLAY CUOR HOME ENTRY MODE SET DISPLAY ON/OFF CUOR/DISPLAY SHIFT SYSTEM SET SET CGRAM ADDRESS SET DDRAM ADDRESS READ BUSY FLUG/ ADDRESS COUNTER WRITE DATA READ DATA Don t care R/W DB7 DB6 DB5 DB4 DB3 DB2 DB DB I/D I/D BF DL S/C N A DD AC Write Data Read Data D R/L F A CG C C Note DB=: Increment, DB=: Decrement DB=: The display is shifted. DB=: The display is not shifted. DB2=: Display on DB2=: Display off DB=: Cursor on DB=: Cursor off DB=: Brinking on DB=: Brinking off DB3=: Shifts display one character DB2=: Right shift, DB2=: Left shift DB4=: bits, DB4=: 4 bits DB3=: 2 lines display (/6 duty), DB3=: line display DB2=: 5 dots, / duty ( DB2=: 5 7 dots, / duty ) The address length that can be set is 64 addresses. The address length that can be set is addresses. DB7=: Busy (itruction not accepted) DB7=: Ready (itruction accepted) 4

SED27F/D PACKAGE DIMENSIONS Plastic QFP5-pin 25.6 ±.4 2 ±. 64 4 65 4 INDEX 4 ±. 9.6 ±.4 25 2.7 ±...35 ±. 24 3.4max.26 2..5 ±.5 2.5 Unit: mm LCD PANEL INTERFACE EXAMPLE (2 lines 2 characters) SED27F/D COM COM6 6 LCD 6 dots SEG SEG4 4 6 DO DO SEG SEG59 SEDF/D LA DO D DO FR DD SS 2 3 SSH OPEN FR DD SS 2 3 5 OSC OSC2 R f SED27F/D is usually connected to -bit MPU via I/O ports. 5

SED27F/D SED27D PAD LAYOUT Unit: m 25 24 4,5 Y (, ) X 3,67 Monitor Pad 4 4 64 65 Pad size: 9 9 PAD COORDINATION Pad No. Pad Name X Y 2 3 4 5 6 7 9 2 3 4 5 6 7 9 2 2 22 23 24 25 26 27 SEG22 SEG2 SEG2 SEG9 SEG SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG SEG SEG9 SEG SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG GND OSC OSC2 2 2,7,95,723,54,359,77 995 4 633 452 272 9-9 -272-452 -633-4 -995 -,77 -,359 -,54 -,723 -,95-2,7,67,365,3, Pad No. Pad Name X Y 2 29 3 3 32 33 34 35 36 37 3 39 4 4 42 43 44 45 46 47 4 49 5 5 52 53 54 3 4 5 CC FR DO R/W E DB DB DB2 DB3 DB4 DB5 DB6 DB7 COM COM2 COM3 COM4 COM5 COM6 COM7 COM -2,7 -,95 -,723 -,54 -,359 -,77-995 -4-633 -452-272 -9 9 272 9 637 455 273 9-9 -273-455 -637-9 -, -,3 -,365 -,67 Unit: m Pad No. Pad Name X Y 55 56 57 5 59 6 6 62 63 64 65 66 67 6 69 7 7 72 73 74 75 76 77 7 79 COM9 COM COM COM2 COM3 COM4 COM5 COM6 SEG4 SEG39 SEG3 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG3 SEG3 SEG29 SEG2 SEG27 SEG26 SEG25 SEG24 SEG23 452 633 4 995,77,359,54,723,95 2,7 -,67 -,365 -,3 -, -9-637 -455-273 -9 9 273 455 637 9,,3,365 6

SED27F/D SED27D OA CHARACTER FONT 7

SED27F/D SED27F OB/ D OB CHARACTER FONT

SED27F/D SED27F OC/ D OC CHARACTER FONT 9

SED27F/D SED27F OD /D OE CHARACTER FONT

SED27F/D SED27F OG/ D OG CHARACTER FONT

SED27F/D SED27F OH/ D OH CHARACTER FONT 2

SED27F/D NOTICE No part of this material may be reproduced or duplicated in any form or by any mea without the written permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no representation that this material is applicable to products requiring high level reliability, such as, medical products. Moreover, no licee to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in accordance with this material will be free from any patent or copyright infringement of a third party. This material or portio thereof may contain technology or the subject relating to strategic products under the control of the Foreign Exchange and Foreign Trade Control Law of Japan and may require an export licee from the Ministry of International Trade and Industry or other approval from another government agency. All product names mentioned herein are trademarks and/or registered trademarks of their respective companies. Seiko Epson Corporation 999 All rights reserved. ELECTRONIC DEICES MARKETING DIISION IC Marketing & Engineering Group ED International Marketing Department I (Europe & U.S.A.) 42-, Hino, Hino-shi, Tokyo 9-5, JAPAN Phone: +-()42-57-52 Fax: +-()42-57-5564 ED International Marketing Department II (Asia) 42-, Hino, Hino-shi, Tokyo 9-5, JAPAN Phone: +-()42-57-54 Fax: +-()42-57-5 3