，该屏采用COG封装方式性能好性价比高，采用FSTN玻璃，显示效果为白底黑字，视角宽，工作温度为-20-+70，接口并口串口可选，因为是COG工艺功耗非常低非常适合手持设备
HGO12864A介绍如下
* Controller: NT7538 (COG)
* Display mode: FSTN / Positive / Transflective
* Operating voltage: 8.7V (LCD); 3.0V(VDD)
* Interface Input Data: 4-wire Serial Interface
* Driving Method: 1/64Duty, 1/9 Bias
* Viewing Direction: 6:00 O’clock
* Operating temperature: -20°C~70°C
* Storage temperature: -30°C~80°C
* LCD Module size: 47.00(W) x 56.16(H) x 2.1Max(T)
* Viewing area: 43.00Min(w) x 29.16Min(H)
* Effective Display Area: 38.38(W) x 26.86(H)
* Number of Dots: 128 x 64Dots
* Dot Size: 0.28(W) x 0.40(H)
* Dot Pitch: 0.30(W) x 0.42(H)
4. INTERFACE PIN FUNCTION
NO Symbol Function
1 NC
2 VLC1 LCD driver supply voltages, need a capacitor to VSS
3 VLC2 LCD driver supply voltages, need a capacitor to VSS
4 VLC3 LCD driver supply voltages, need a capacitor to VSS
5 VLC4 LCD driver supply voltages, need a capacitor to VSS
6 VLC5 LCD driver supply voltages, need a capacitor to VSS
7 CAP3- Connect a capacitor to CAP3+
8 CAP3+ Connect a capacitor to CAP3-
9 CAP2- Connect a capacitor to CAP2+
10 CAP2+ Connect a capacitor to CAP2-
11 CAP1- Connect a capacitor to CAP1+
12 CAP1+ Connect a capacitor to CAP1-
13 VLCD High voltage lcd supply connect a capacitor to vss
14 VSS Ground
15 VDD +3.0v logic supply voltage
16 SI The serial data input terminal
17 SCL The serial clock input terminal
Register select input pin
18 A0
H: display data.. L: control data
19 RES Hardware reset
20 CS1 Chip select "L"
21 NC
