Display LCD COG Gráfico de 128x64
Model No. WO12864L
►LCD COG 128x64
►LCD Gráfico
►IC: ST7567A
►Alimentação 3V
►1/65 duty cycle, 1/9 bias
►Interface : SPI / I2C
Descrição
Below is the comparison of circuit designs of WO12864L and WO12864A1. For new designs, WO12864L is a bettter choice.
| WO12864L-TFH# | WO12864A1-TFH# |
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DRAWING
Data source ref: WO12864L-TFH#
SPECIFICATIONS
Função do pino de interface
| Pin No. | Símbolo | Descrição | ||||||
|---|---|---|---|---|---|---|---|---|
| 1 | ESD | ESD | ||||||
| 2 | SI2 | SI2 selects the interface type: I2C serial interface or not
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| 3 | VG | VG is the LCD driving voltage for segment circuits | ||||||
| 4 | XV0 | XV0 is the LCD driving voltage for common circuits at positive frame. | ||||||
| 5 | V0 | V0 is the LCD driving voltage for common circuits at negative frame. | ||||||
| 6 | VSS | GROUND | ||||||
| 7 | VDD | POWER | ||||||
| 8 | SDA | D[1:3] must be connected together as SDA. D[4:7]=(1,1,1,1): ID Pin. D[4:7] should fix to “H” or “L” by VDDH or VSSL. |
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| 9 | SCL | |||||||
| 10 | A0 | It determines whether the access is related to data or command. A0=“H” : Indicates that signals on D[7:0] are display data. A0=“L” : Indicates that signals on D[7:0] are command. |
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| 11 | RSTB | Hardware reset input pin. When RSTB is “L”, internal initialization is executed and the internal registers will be initialized. | ||||||
| 12 | CSB | Chip select input pin. Interface access is enabled when CSB is “L”. When CSB is non-active (CSB=“H”), D[7:0] pins are high impedance. |
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| 13 | ESD | ESD |
Dados Mecânicos
| Item | Valor Padrão | Unidade |
|---|---|---|
| Number of dots | 128 x 64 | — |
| Dimensão do módulo | 60.10 x 44.50 x 5.01(Max) | mm |
| Área de visualização | 54.6 x 32.0 | mm |
| Área ativa | 49.89 x 27.49 | mm |
| Tamanho do ponto | 0.36 x 0.40 | mm |
| Distância entre pontos | 0.39 x 0.43 | mm |
| Drive Method | 1/65 DUTY, 1/9BIAS | |
| Tipo de luz de fundo | LED | |
| IC | ST7567A (SPI & I2C) | |
Classificações Máximas Absolutas
| Item | Símbolo | Valor Min | Valor Típico | Valor Máximo | Unidade |
|---|---|---|---|---|---|
| Temperatura de operação | TOP | -20 | － | +70 | ℃ |
| Temperatura de armazenamento | TST | -30 | － | +80 | ℃ |
| Input Voltage | VI | -0.3 | － | VDD+0.3 | V |
| Digital Power Supply Voltage | VDD-Vss | -0.3 | － | 4.0 | V |
| LCD Power supply voltage | V0-XV0 | -0.3 | － | 18.0 | V |
Características Eletrônicas
| Item | Símbolo | Condição | Valor Min | Valor Típico | Valor Máximo | Unidade |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 2.9 | 3.0 | 3.1 | V |
| Supply Voltage For LCD | VOP | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 9.3 － |
－ 9.5 － |
－ 9.7 － |
V V V |
| Input High Volt. | VIH | － | 0.7VDD | － | VDD | V |
| Input Low Volt. | VIL | － | VSS | － | 0.3VDD | V |
| Supply Current | IDD | － | 2.0 | mA |
