Specification: Note: 1. \"LIGHT\" linked with GND the backlight to be lit. 2. Need you to compress the screen and PCB tighter might got loose after the delivery. 3 Use a 3.3V controller otherwise the display could be quite vague. LCD5110 Module: Power supply voltage:2.7V-3.3V5V is OKbut part of the screen becomes black when tested Data interface level:2.7-5V Backlight power supply voltage:highest 3.3V Module size:43.6mm x 43.1mm(width X height) Installation diameter:2mm Backlight:blue Document for Download:Data 1. RST--------- reset 2. CE------------chip selection 3. DC-----------data/commands choice 4. DIN-----------serial data line 5. CLK------------serial Clock Spee 6. 3.3V------------VCC 7. LIGHT--------- backlight control terminal 8. GND-----------power negative Features: 84 X 84 dot matrix LCDcan show 4 lines of characters Use serial interface communicate with the master processorthe number of interface signal line reduced greatly only 8 signal lines including power and GND.Support different types of MCUsuch as the SPIMCS51 serial mode 0 of AVR.Transfer rate up to 4Mbpscan full speed write display data without waiting time. Can use the conductive glue to connect the module with the printed boardwithout connecting cable.The metal hooks on the module can fix the module on the printed boardwhich is very easy to install and replace. LCD controller/driver chip has been bound to LCD chipthe volume of LCD is small Low power supplythe working current in normal situation is lower than 200Aand has power-down mode Shipping Included: 1PCS*for Nokia 5110 LCD Disply Module