General Purpose LCD Driver

Transcription

1 UL: Description is a general purpose LCD Driver IC utilizing CMOS technology specially designed with character and graphical displays. It provides 1/8 to 1/ duty and can drive up to a maximum of 730 segment drivers and control up to 4 general purpose ports. Housed in a 0-pin QFP or LQFP package, can directly display the display data without any decoder intervention, thereby providing a high level of generality. Built-in display contrast adjustment circuit, independent LCD drive block power supply and serial data control of the power saving mode based on the backup function as well as all segments forced OFF functions are incorporated into a single chip having the highest performance and reliability. Pin assignments and application circuits are optimized for easy PCB layout and cost saving benefits. Features CMOS technology Wide variety of bias drive techniques: - 1/8 duty, 1/4 bias drive technique: (600 segments max.) - 1/9 duty, 1/4 bias drive technique: (666 segments max.) - 1/ duty, 1/4 bias drive technique: (730 segments max.) C oscillation circuit Up to 4 general purpose output ports Built-in display contrast adjustment circuit Direct display of display data without any decoder intervention All segments forced OFF function Serial data control of the power saving mode based backup function Available in 0-pin QFP or LQFP packages Applications Cellular phones Data banks / organizers Electronic dictionaries / translators Information appliances / PDAs Car audio systems POS terminals Equipment with LCD display panels v1 Page 1 Last updated on October 7, 2003

2 UL: v1 Page 2 Last updated on October 7, 2003 Pin Configuration /0 5/COM VDD QFP Package /0 5/COM VDD LQFP Package

3 UL: Application Circuit 1 : 1/8 Duty, 1/4 Bias Drive Technique (for Normal Panel Use) +5V VDD OPEN C C C 4 C C 0.047uF 2. 1 = 43KΩ, C1 = 680pF 3. If the Variable esistor is not used for the display contrast adjustment, the 4 in must be connected to the ground. v1 Page 3 Last updated on October 7, 2003

4 UL: Application Circuit 2: 1/8 Duty, 1/4 Bias Drive Technique (for Large Panel Use) +5V VDD C C C 4 C C0.047uF 2. 1 = 43kΩ, C1 = 680pF 3. If the Variable resistor is not used for the display contrast fine adjustment, the 4 pin must be connected to the Ground. v1 Page 4 Last updated on October 7, 2003

5 UL: Application Circuit 3: 1/9 Duty, 1/4 Bias Drive Technique (For Normal Panel Use) +5V VDD OPEN C C C *2 5/COM /4 Note: *2 If a variable resistor is not used for display contrast fine adjustment, the V LCD 4 pin must be connected to ground. 1. C 0.047uF 2. 1 = 43kΩ, C1 = 680pF 3. If the Variable esistor is not used for display contrast fine adjustment, the 4 pin must be connected to Ground. v1 Page 5 Last updated on October 7, 2003

6 UL: Application Circuit 4: 1/9 Duty, 1/4 Bias Drive Technique (For Large Panel Use) +5V VDD C C C 4 *2 5/COM /4 Note: *2 If a variable resistor is not used for display contrast fine adjustment, the V LCD 4 pin must be connected to ground. 1. C 0.047uF 2. 1 = 43kΩ, C1 = 680pF 3. If the Variable esistor is not used for display contrast fine adjustment, the 4 pin must be connected to the Ground. v1 Page 6 Last updated on October 7, 2003

7 UL: Application Circuit 5: 1/ Duty, 1/4 Bias Drive Technique (For Normal Panel Use) +5V VDD OPEN C C C *2 5/COM9 4/ Note: *2 If a variable resistor is not used for display contrast fine adjustment, the V LCD 4 pin must be connected to ground. 1. C 0.047uF 2. 1 = 43kΩ, C1 = 680pF 3. If the Variable esistor is not used for display contrast fine adjustment, the 4 pin must be connected to the ground. v1 Page 7 Last updated on October 7, 2003

8 UL: Application Circuit 6: 1/ Duty, 1/4 Bias Drive Technique (For Large Panel Use) +5V VDD C C C 4 *2 5/COM9 4/ Note: *2 If a variable resistor is not used for display contrast fine adjustment, the V LCD 4 pin must be connected to ground. 1. C 0.047uF 2. 1 = 43kΩ, C1 = 680pF 3. If the Variable esistor is not used for display contrast fine adjustment, the 4 pin must be connected to the ground. v1 Page 8 Last updated on October 7, 2003

9 UL: ODE INFOMATION Order Part Number Package Type Top Code 0 Pin QFP package LQ 0 Pin LQFP package LQ L or L in circle 0 Pin, QFP Package LQ L or L in circle 0 Pin, LQFP Package LQ Note: 1. L = Lead Free 1. The Lead Free mark is put in front of the date code YYWWZ LQ YYWWZ QFP Package LQFP Package where: YY = year manufactured WW = week manufactured (using the calendar year, the week where January 1 st is included is defined as Week 1. On year has 52 or 53 weeks. Z = Version v1 Page 9 Last updated on October 7, 2003