GENERAL DESCRIPTION
1.1 FEATURES
AKIHABARA INC. 128×64 dot matrix FSTN The duty ratio is 1/64, bias ratio is 1/9 It uses sigle power Programmable contrast Only write SPI serial interface 3.3V white backlight 1.2 Electrical parameters Parameters Supply voltage Input voltage Table 1.1 Threshold parameters Symbol Min VDD -0.3 Vin -0.3 Operating temperature Topr 0 Storage temperature Tstr -20 Max 5 Vdd+0.3 50 60 Units V V ℃ ℃ Table 1.2 Electrical parameters Parameters Symbol Condition Min Typ Supply voltage Vdd － - 3.0 Input High Level Vih — 0.8Vdd voltage Low Level Vil Vss LCD supply voltage Vlcd — - 3.0 Max 3.3 Vdd 0.2Vdd - Units V V V 1 1.3 Block Diagram The block diagran of AD-12864-SPI LCD Module is shown in Figure 1.1. 5mm 27.1mm 23.8mm 13.5mm 29mm 5mm Figure 1.1 Functional block and size diagram On the back of the module, there are 8 pin port, their function are shown in Table 1.3. Table 1.3 Port function No. Symbol DESCRIPTION
1 /CS1 This is the chip select signal. When /CS1 = “L” then the chip select becomes active.
