AND471GST/GST-LED 2 Lines x 16 Characters Intelligent Character Display The AND471GST/GST-LED devices are compact, LCD modules that have an on-board LCD controller and driver circuit. These devices can display 160 characters (numerals, letters, symbols and Kana letters), as well as eight custom characters. The large characters provide excellen readability. Absolute Maximum Ratings (Continued) RoHS Compliant Features AND471GST: Super Twist Technology Item Symbol Rating Unit AND471GST-LED: STN with LED backlight V LED Reverse Voltage 8V Low voltage, +5V single power supply R Controller on board (HD44780) P LED Power Dissipation 2000 mW D RoHS compliant T Operating Temperature 0 to +50 C Wide temperature range option (WGST) op Storage Temperature T 20 to +60 C Dot Matrix Dimensions stg 4.84 0.50 0.92 Electrical Characteristics (TA = 25C) 0.05 Item Symbol Min. Typ. Max. Unit V 4.75 5.0 5.25 DD Supply Voltage V V -V 3.0 6.3 DD O High Level In Voltage V 2.2 V IH (V = 5.0V) DD Low Level In Voltage V 0.6 V IL (I = 0.2 mA) OH High Level Output Volt. V 2.4 V OH (I = 0.2 mA) OH Mechanical Characteristics Low Level Output Volt. V 0.4 V Item Specication Unit OL (I = 1.2 mA) OL Outline 122 (W) x 44 (H) x 11 (D) mm LED Forward Voltage Dimensions V 3.8 4.1 4.4 V F (I = 220) F Character size 4.84 (W) x 9.66 (H) mm LED Reverse Current I 2.4 mA Viewing Area 99.0 (W) x 24.0 (H) mm R (V = 8 V) R Dot Size 0.92 (W) x 1.10 (H) mm Dot Pitch 0.98 (W) x 1.16 (H) mm Optical Characteristics (TA 5 = 25C, = 0, = 0) Item Symbol Min. Typ. Max. Unit Absolute Maximum Ratings Viewing Angle 50 degree Item Symbol Rating Unit Contrast K 6.0 V Supply Voltage 7.0 V DD T Turn On 200 400 ms on V 0 V V Input Voltage V IN IN DD T Turn Off 250 400 ms off LED Forward Current I 480 mA F Product specications contained herein may be changed without prior notice. It is therefore advisable to contact Purdy Electronics before proceeding with the design of equipment incorporating this product. Purdy Electronics Corporation 720 Palomar Avenue Sunnyvale, CA 94085 1 Tel: 408.523.8200 Fax: 408.733.1287 sales purdyelectronics.com www.purdyelectronics.com 7/20/07 0.40 9.66 1.10 0.05 AND471GST/GST-LED Intelligent Character Display Connector Pin Assignment Power Supply Pin No. Signal Function The LCD panel is driven by the voltage V V , so you need DD O an adjustable V for contrast control and temperature 1 GND Ground O compensation. V 2 +5 Power Supply DD Temperature Variations V 3 LCD Drive Voltage O V V Temperature DD O H Data Input 4RS 0C 5.00 L Command Input +25C 4.75 5 R/W Read/Write +50C 4.50 6 E Enable Power Supply Block Diagram 7 DBO 8 DB1 (+5V) V DD 9 DB2 Data Bus 10 DB3 V V DD O DB0-DB7 are for 8-bit operation 11 DB4 V O VR V DB4-DB7 are for 4-bit operation DD 12 DB5 13 DB6 GND 14 DB7 V V = LCD Drive Voltage DD O VR10 to 20 k Block Diagram E LCD 16 R/W RS Controller/ Driver DB0-DB7 8 40 40 V DD V O 1 Driver GND Dimensional Outline Purdy Electronics Corporation 720 Palomar Avenue Sunnyvale, CA 94085 7/20/07 Tel: 408.523.8200 Fax: 408.733.1287 sales purdyelectronics.com www.purdyelectronics.com 2