NHD-0420H1Z-FSW-GBW-33V3 Character Liquid Crystal Display Module NHD- Newhaven Display 0420- 4 Lines x 20 Characters H1Z- Model F- Transflective SW- Side White LED Backlight G- STN- Gray, Positive B- 6:00 Optimal View W- Wide Temp. 33V3- 3.3VDD, 3.0V Backlight RoHS Compliant Newhaven Display International, Inc. 2661 Galvin Ct. Elgin IL, 60124 Ph: 847-844-8795 Fax: 847-844-8796 www.newhavendisplay.com nhtech newhavendisplay.com nhsales newhavendisplay.com Document Revision History Revision Date Description Changed by 0 10/31/11 33V improved liquid VDD = 3.3V SB 1 9/10/15 Mechanical drawing, electrical and optical characteristics SB updated, timing characteristics added 2 10/26/16 Updated Electrical & Optical Characteristics TM 3 11/20/17 Updated Mechanical Drawing TM 4 3/18/19 Backlight Current Updated SB 5 6/3/20 Updated Backlight Current, Logic Voltage MIN/MAX & 2D AS Drawing 6 11/5/20 Clarified Pinout Order in 2D Mechanical Drawing AS Functions and Features 4 lines x 20 characters Built-in controller ST7066U +3.3V Power Supply +3.0V LED Backlight 1/16 duty, 1/4 bias RoHS compliant 2