电子说
在电子设计领域,液晶显示模块是人机交互的重要组成部分。今天我们就来详细了解一下Newhaven Display International推出的NHD - 0216T2Z - FSY - YBW - P字符液晶显示模块。
文件下载:NHD-0216T2Z-FSY-YBW-P.pdf
NHD - 0216T2Z - FSY - YBW - P模块的型号包含了丰富的信息:
该模块具备2行×16字符的显示能力,能够清晰地显示文本信息,满足大多数简单信息显示的需求。
内置了ST7066U - 0A控制器,它为模块的稳定运行提供了保障。同时,模块采用+5.0V电源供电,1/16 duty和1/5 bias的驱动方式,并且符合RoHS标准,环保又可靠。
| 模块的LCD连接器采用2.54mm间距的引脚,其引脚功能明确: | Pin No. | Symbol | External Connection | Function Description |
|---|---|---|---|---|
| 1 | VSS | Power Supply | Ground | |
| 2 | VDD | Power Supply | Supply Voltage for logic (+5.0V) | |
| 3 | V0 | Adj Power Supply | Power supply for contrast (approx. 0.5V) | |
| 4 | RS | MPU | Register select signal. RS = 0: Command, RS = 1: Data | |
| 5 | R/W | MPU | Read/Write select signal, R/W = 1: Read R/W: = 0: Write | |
| 6 | E | MPU | Operation enable signal. Falling edge triggered. | |
| 7 - 10 | DB0 – DB3 | MPU | Four low order bi - directional three - state data bus lines. These four are not used during 4 - bit operation. | |
| 11 - 14 | DB4 – DB7 | MPU | Four high order bi - directional three - state data bus lines. | |
| 15 | LED+ | Power Supply | Power supply for LED Backlight (+5.0V via on - board resistor) | |
| 16 | LED - | Power Supply | Ground for Backlight |
| 该模块的电气特性涵盖了温度范围、电压、电流等多个方面: | Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|---|
| Operating Temperature Range | Top | Absolute Max | - 20 | - | +70 | ⁰C | |
| Storage Temperature Range | Tst | Absolute Max | - 30 | - | +80 | ⁰C | |
| Supply Voltage | VDD | 4.7 | 5.0 | 5.5 | V | ||
| Supply Current | IDD | Ta = 25°C, VDD = 5.0V | - | 1.5 | 2.0 | mA | |
| Supply for LCD (contrast) | VDD - V0 | Ta = 25°C | - | 4.5 | - | V | |
| “H” Level input | Vih | 0.7 * VDD | - | VDD | V | ||
| “L” Level input | Vil | - 0.3 | - | 0.6 | V | ||
| “H” Level output | Voh | 3.9 | - | VDD | V | ||
| “L” Level output | Vol | - | - | 0.4 | V | ||
| Backlight Supply Voltage | Vled | - | - | 5.0 | - | V | |
| Backlight Supply Current | Iled | Vled = 5.0V | - | 15 | - | mA |
| 其光学特性包括视角、对比度和响应时间等参数: | Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|---|
| Viewing Angle – Vertical (top) | AV | Cr ≥2 | - | 25 | - | ⁰ | |
| Viewing Angle – Vertical (bottom) | AV | Cr ≥2 | - | 70 | - | ⁰ | |
| Viewing Angle – Horizontal (left) | AH | Cr ≥2 | - | 30 | - | ⁰ | |
| Viewing Angle – Horizontal (right) | AH | Cr ≥2 | - | 30 | - | ⁰ | |
| Contrast Ratio | Cr | - | 2 | - | - | ||
| Response Time (rise) | Tr | - | - | 120 | 150 | ms | |
| Response Time (fall) | Tf | - | - | 120 | 150 | ms |
void command(char i) {
P1 = i;
D_I = 0;
R_W = 0;
E = 1;
Delay(1);
E = 0;
}
void write(char i) {
E = 0;
P1 = i;
D_I = 1;
R_W = 0;
E = 1;
Delay(1);
E = 0;
}
void init() {
E = 0;
Delay(100);
command(0x30);
Delay(30);
command(0x30);
Delay(10);
command(0x30);
Delay(10);
command(0x38);
command(0x10);
command(0x0c);
command(0x06);
}
void command(char i) {
P1 = i;
D_I = 0;
R_W = 0;
Nybble();
i = i < < 4;
P1 = i;
Nybble();
}
void write(char i) {
P1 = i;
D_I = 1;
R_W = 0;
Nybble();
i = i < < 4;
P1 = i;
Nybble();
}
void Nybble() {
E = 1;
Delay(1);
E = 0;
}
void init() {
P1 = 0;
P3 = 0;
Delay(100);
P1 = 0x30;
Delay(30);
Nybble();
Delay(10);
Nybble();
Delay(10);
Nybble();
Delay(10);
P1 = 0x20;
Nybble();
command(0x28);
command(0x10);
command(0x0F);
command(0x06);
}
该模块经过了多种质量测试,包括高温存储、低温存储、高温运行、低温运行、高温高湿运行、热冲击抵抗、振动测试和静电测试等,以确保其在不同环境下的可靠性。
在使用该模块时,需要注意查看www.newhavendisplay.com/specs/precautions.pdf中的使用注意事项。同时,关于保修信息和条款可以访问http://www.newhavendisplay.com/index.php?main_page=terms 。
总的来说,NHD - 0216T2Z - FSY - YBW - P字符液晶显示模块凭借其丰富的功能、良好的性能和可靠的质量,在电子设计中有着广泛的应用前景。各位电子工程师在实际设计中是否考虑过使用这样的显示模块呢?它又能为你的项目带来哪些便利呢?欢迎大家一起交流探讨。
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