探索NHD - 0216T2Z - FSY - YBW - P字符液晶顯示模塊
在電子設(shè)計(jì)領(lǐng)域,液晶顯示模塊是人機(jī)交互的重要組成部分。今天我們就來詳細(xì)了解一下Newhaven Display International推出的NHD - 0216T2Z - FSY - YBW - P字符液晶顯示模塊。
文件下載:NHD-0216T2Z-FSY-YBW-P.pdf
一、產(chǎn)品概述
NHD - 0216T2Z - FSY - YBW - P模塊的型號(hào)包含了豐富的信息:
- “NHD - ”代表Newhaven Display;
- “0216 - ”表示該模塊為2行,每行16個(gè)字符;
- “T2Z - ”是具體型號(hào);
- “F - ”為半透反射型;
- “SY - ”表示側(cè)面黃/綠色LED背光;
- “Y - ”是STN - 黃/綠色;
- “B - ”為6:00視角;
- “W - ”意味著寬溫度范圍( - 20°C~ + 70°C);
- “P - ”表示帶有針腳插頭,并且該產(chǎn)品符合RoHS標(biāo)準(zhǔn)。
二、功能與特性
顯示能力
該模塊具備2行×16字符的顯示能力,能夠清晰地顯示文本信息,滿足大多數(shù)簡(jiǎn)單信息顯示的需求。
內(nèi)置控制器
內(nèi)置了ST7066U - 0A控制器,它為模塊的穩(wěn)定運(yùn)行提供了保障。同時(shí),模塊采用+5.0V電源供電,1/16 duty和1/5 bias的驅(qū)動(dòng)方式,并且符合RoHS標(biāo)準(zhǔn),環(huán)保又可靠。
三、機(jī)械與電氣特性
機(jī)械繪圖與引腳說明
| 模塊的LCD連接器采用2.54mm間距的引腳,其引腳功能明確: | 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 |
電氣特性
| 該模塊的電氣特性涵蓋了溫度范圍、電壓、電流等多個(gè)方面: | Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|---|
| Operating Temperature Range | Top | Absolute Max | - 20 | - | +70 | ?C | |
| Storage Temperature Range | Tst | Absolute Max | - 30 | - | +80 | ?C | |
| 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 |
光學(xué)特性
| 其光學(xué)特性包括視角、對(duì)比度和響應(yīng)時(shí)間等參數(shù): | Item | Symbol | Condition | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|---|
| Viewing Angle – Vertical (top) | AV | Cr ≥2 | - | 25 | - | ? | |
| Viewing Angle – Vertical (bottom) | AV | Cr ≥2 | - | 70 | - | ? | |
| Viewing Angle – Horizontal (left) | AH | Cr ≥2 | - | 30 | - | ? | |
| Viewing Angle – Horizontal (right) | AH | Cr ≥2 | - | 30 | - | ? | |
| Contrast Ratio | Cr | - | 2 | - | - | ||
| Response Time (rise) | Tr | - | - | 120 | 150 | ms | |
| Response Time (fall) | Tf | - | - | 120 | 150 | ms |
四、初始化程序
8位初始化
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);
}
4位初始化
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);
}
五、質(zhì)量與使用注意事項(xiàng)
質(zhì)量測(cè)試
該模塊經(jīng)過了多種質(zhì)量測(cè)試,包括高溫存儲(chǔ)、低溫存儲(chǔ)、高溫運(yùn)行、低溫運(yùn)行、高溫高濕運(yùn)行、熱沖擊抵抗、振動(dòng)測(cè)試和靜電測(cè)試等,以確保其在不同環(huán)境下的可靠性。
使用注意事項(xiàng)
在使用該模塊時(shí),需要注意查看www.newhavendisplay.com/specs/precautions.pdf中的使用注意事項(xiàng)。同時(shí),關(guān)于保修信息和條款可以訪問http://www.newhavendisplay.com/index.php?main_page=terms 。
總的來說,NHD - 0216T2Z - FSY - YBW - P字符液晶顯示模塊憑借其豐富的功能、良好的性能和可靠的質(zhì)量,在電子設(shè)計(jì)中有著廣泛的應(yīng)用前景。各位電子工程師在實(shí)際設(shè)計(jì)中是否考慮過使用這樣的顯示模塊呢?它又能為你的項(xiàng)目帶來哪些便利呢?歡迎大家一起交流探討。
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