HT1602L 40 Dot Matrix LCD Segment Driver Features · · · Operating voltage: 2.7V~5.2V LCD driving voltage: 3.0V~5.0V Applicable LCD duty from 1/8 to 1/16 · · Suitable for various types of LCD panel Bias voltage adjustable from an external source · · Remote controllers Calculators Applications · · · Interface with HT163A Electronic dictionaries Portable computers General Description send them out as LCD driving waveforms to the LCD panel. The chip is applicable up to 1/16 duty. Furthermore, the bias voltage which determines the LCD driving voltage can be optionally supplied from an external source, thus the chip is suitable for driving various LCD panel. These special features increase the versatility of the chip. The HT1602L is a dot matrix LCD segment driver LSI implemented in CMOS technology. The chip contains 40-bit shift register (two 20-bit shift registers), 40-bit latch (two 20-bit latches), 40-bit level shifter, 40-bit 4-level driver and control circuits. The HT1602L can convert serial data received from an LCD controller parallel data and then Block Diagram D O 1 9 D I0 L O A D C L K D I2 0 A L T 2 0 - b it S h ift R e g is te r 1 2 0 - b it L a tc h 2 0 - b it S h ift R e g is te r 2 2 0 - b it L a tc h V 5 V 3 V 2 V D D Y 0 4 0 - b it L e v e l S h ifte r 4 0 - b it 4 L e v e l D r iv e r Y 3 9 V S S D O 3 9 1 September 1, 2000 HT1602L Pad Assignment Y 1 2 Y 1 1 Y 1 0 Y 9 Y 8 Y 7 Y 6 Y 5 Y 4 Y 3 Y 2 Y 1 Y 0 5 2 5 1 5 0 4 9 4 8 4 7 4 6 4 5 4 4 4 3 4 2 4 1 4 0 3 9 3 Y 1 7 4 Y 1 8 Y 1 9 5 V D D 6 Y 2 1 513 2 Y 1 6 Y 2 0 Y 1 3 1 Y 1 4 Y 1 5 A L T 3 7 L O A D 3 6 D I0 3 5 C L K 3 4 (0 ,0 ) 7 3 8 V D D 3 3 8 1 8 1 9 2 0 2 1 2 2 2 3 Chip size: 87 ´ 74 (mil) 2 4 2 5 2 6 2 7 D O 3 9 1 7 Y 3 9 1 6 Y 3 8 1 5 Y 3 7 1 4 Y 3 6 1 3 Y 3 5 Y 2 6 Y 3 4 1 2 Y 3 3 Y 2 5 Y 3 2 1 1 Y 3 1 Y 2 4 Y 3 0 1 0 Y 2 9 Y 2 3 Y 2 8 9 Y 2 7 Y 2 2 V S S 3 2 V 2 3 1 V 3 3 0 V 5 2 9 D O 1 9 2 8 D I2 0 2 * The IC substrate should be connected to VSS in the PCB layout artwork. Pad Coordinates Unit: mm Pad No. X Y Pad No. X Y 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -975.00 -845.00 -715.00 -585.00 -455.00 780.00 650.00 520.00 390.00 260.00 130.00 0.00 -130.00 -260.00 -390.00 -520.00 -650.00 -780.00 -780.00 -780.00 -780.00 -780.00 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 975.00 975.00 942.50 942.50 942.50 975.00 923.50 975.00 975.00 975.00 975.00 975.00 845.00 715.00 585.00 455.00 325.00 -713.00 -583.00 -435.50 -305.50 -175.50 -45.50 84.50 239.00 369.00 499.00 629.00 780.00 780.00 780.00 780.00 780.00 780.00 2 September 1, 2000 HT1602L Pad No. X Y Pad No. X Y 18 19 20 21 22 23 24 25 26 27 -325.00 -195.00 -65.00 65.00 195.00 325.00 455.00 585.00 715.00 845.00 -780.00 -780.00 -780.00 -780.00 -780.00 -780.00 -780.00 -780.00 -780.00 -780.00 45 46 47 48 49 50 51 52 53 195.00 65.00 -65.00 -195.00 -325.00 -455.00 -585.00 -715.00 -845.00 780.00 780.00 780.00 780.00 780.00 780.00 780.00 780.00 780.00 Pad Description Pad No. Pad Name I/O Description 1~5 Y15~Y19 O LCD driver output for segment* 6 VDD ¾ Positive power supply 7~26 Y20~Y39 O LCD driver output for segment 27 DO39 O Shift register output pad for the 40th bit data 28 DI20 I Data input pad of shift register 2 29 DO19 O Shift register output pad for the 20th bit data 30, 31, 32 V5, V3, V2 I LCD bias supply voltage 33 VSS ¾ Negative power supply, ground 34 VDD ¾ Positive power supply 35 CLK I Clock pulse input pad for the shift register 36 DI0 I Data input pad of shift register 1 37 LOAD I Latching signal to latch shift register data 38 ALT I Alternate signal input pad for LCD driving waveform 39~53 Y0~Y14 O LCD driver output for segment* *: For Y0~Y39, one of VDD, V2, V3 or V5 is selected as a display driving source according to the combination of latched data level and ALT signal. Refer to the following table: Latched Data H L ALT Display data output level H V5 L VDD H V3 L V2 3 September 1, 2000 HT1602L Absolute Maximum Ratings Supply Voltage..............................-0.3V to 6.0V Storage Temperature.................-50°C to 125°C Input Voltage .................VSS-0.3V to VDD+0.3V Operating Temperature ..............-20°C to 70°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. D.C. Characteristics Symbol Parameter Ta=25°C Test Conditions VDD Conditions ¾ Min. Typ. Max. Unit 2.7 ¾ 5.2 V ¾ 100 300 mA VDD Operating Voltage ¾ IOP Operating Current 5V IDD Standby Current 5V ¾ ¾ 1 5 mA fLCD Clock Frequency 5V ¾ 3.3 ¾ ¾ MHz twCLK Clock Pulse Width 5V ¾ 125 ¾ ¾ ns VIL ²L² Input Voltage 5V ¾ ¾ ¾ 0.3VDD V VIH ²H² Input Voltage 5V ¾ 0.7VDD ¾ ¾ V VLCD LCD Driving Voltage 5V ¾ 3.0 ¾ 5.0 V No load 4 September 1, 2000 HT1602L Timing Diagrams 1/16 duty and 1/5 bias 1 1 6 L O A D 1 6 3 2 1 2 A L T L A T C H D A T A L A T C H D A T A O F Y 0 H L L L L H L 1 fra m e V D D V a V b Y 0 V V V c d E E V R D I0 V a R V c R V D D d R V 2 V R R V 3 V 5 B r ig h tn e s s A d ju s tm e n t Y 0 H T 1 6 0 2 L C L K A L T V b D O 1 9 D I2 0 V Y 3 9 = V D D = V D D V c= V D D V d = V D D V 5 = V D D V L C D = V V - b - (1 /5 (2 /5 (3 /5 (4 /5 a - V D D - )V )V )V )V L C D L C D L C D L C D L C D V 5 ; L C D d r iv in g v o lta g e 5 September 1, 2000 HT1602L Application Circuits L C D S E G 1 ~ 4 0 C O M 1 ~ 1 6 D 0 Y 0 ~ Y 3 9 D I0 C L K D O 3 9 D I0 D O 1 9 C L K H T 1 6 0 2 L L O A D D I2 0 Y 0 ~ Y 3 9 H T 1 6 0 2 L L O A D A L T D O 3 9 D I0 D O 1 9 C L K L O A D D I2 0 A L T V D D V S S V 2 V 3 V 5 Y 0 ~ Y 3 9 D O 3 9 D O 1 9 H T 1 6 0 2 L D I2 0 A L T V D D V S S V 2 V 3 V 5 V D D V S S V 2 V 3 V 5 L C D C o n tr o lle r C L K L A L T V D D G N D V 1 V 2 V 3 V 4 V 5 R + 5 V C R R C C 6 V R R R C 0 V C September 1, 2000 HT1602L Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan Tel: 886-2-2655-7070 Fax: 886-2-2655-7373 Fax: 886-2-2655-7383 (International sales hotline) Holtek Semiconductor Inc. (Shanghai Sales Office) 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233 Tel: 021-6485-5560 Fax: 021-6485-0313 http://www.holtek.com.cn Holtek Semiconductor Inc. (Shenzhen Sales Office) 5/F, Unit A, Productivity Building, Cross of Science M 3rd Road and Gaoxin M 2nd Road, Science Park, Nanshan District, Shenzhen, China 518057 Tel: 0755-8616-9908, 8616-9308 Fax: 0755-8616-9533 Holtek Semiconductor Inc. (Beijing Sales Office) Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031 Tel: 010-66410030, 66417751, 66417752 Fax: 010-66410125 Holtek Semiconductor Inc. (Chengdu Sales Office) 709, Building 3, Champagne Plaza, No.97 Dongda Street, Chengdu, Sichuan, China 610016 Tel: 028-6653-6590 Fax: 028-6653-6591 Holmate Semiconductor, Inc. (North America Sales Office) 46729 Fremont Blvd., Fremont, CA 94538 Tel: 510-252-9880 Fax: 510-252-9885 http://www.holmate.com Copyright Ó 2000 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. 7 September 1, 2000