Grafici LCD COG+PCB 240x128 + PCB
Modello numero WO240128B2
►LCD COG
►LCD Grafico
►240 x 128 unti
►A bordo Controllore ST7586S
►Alimentatore + 3.3V
►1/128 duty cycle
►Interfaccia : Default 6800, Option 8080, SPI-4 Line/SPI-3Line 9bit
DISEGNO
SPECIFICHE TECNICHE
Funzione dei Pin di Interfaccia
| Pin No. | Simbolo | Descrizione | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | VDD | Power supply | |||||||||
| 2 | NC | No connection | |||||||||
| 3 | VSS | Ground | |||||||||
| 4 | CSB | Chip select input pin CSB=“L”: This chip is selected and the MPU interface is active CSB=“H”: This chip is not selected and the MPU interface is disabled (D[7:0] are high impedance) |
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| 5 | RSTB | Reset input pin. When RSTB is “L”, internal initialization procedure is executed | |||||||||
| 6 | /RD(E) | Read / Write execution control pin. (This pin is only used in parallelinterface)
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| 7~14 | D7~D0 | The bi-directional data bus of the MPU interface. When CSB is “H”, they are high impedance If using serial interface: D0 is the SDA signal in 4-Line & 3-Line interface D1 is the A0 signal in 4-Line interface |
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| 15 | /WR/(R/W) | Read / Write execution control pin. (This pin is only used in parallel interface)
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| 16 | A0(SCL) | The function of this pin is different in parallel and serial interface In parallel interface: A0 is register selection input A0 = "H": inputs on data bus are display data A0 = "L": inputs on data bus are command In serial interface: this pad will be used as SCL (serial-clock) input |
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| 17 | A | LED+ | |||||||||
| 18 | K | LED- |
Dati meccanici
| Articolo | Valore standard | Unità |
|---|---|---|
| A matrice di punti | 240 × 128 | － |
| Dimensione del modulo | 140.0 × 84.0 × 9.7 | mm |
| Area di visualizzazione | 114.0 × 64.0 | mm |
| Area attiva | 107.98 × 57.58 | mm |
| Dimensioni del Dot | 0.43 × 0.43 | mm |
| Passo del Dot | 0.45 × 0.45 | mm |
| Metodo di pilotaggio | 1/128 Duty，1/12 Bias | |
| Tipo di backlight | LED | |
| IC | ST7586S | |
Valori massimi assoluti
| Articolo | Simbolo | Valore Min | Valore tipico | Valore massimo | Unità |
|---|---|---|---|---|---|
| Temperatura di lavoro | TOP | -20 | － | +70 | ℃ |
| Temperatura di stock | TST | -30 | － | +80 | ℃ |
| Digital Power Supply Voltage | VDDI | -0.3 | － | 3.6 | V |
| Analog Power supply voltage | VDDA | -0.3 | － | 3.6 | V |
| LCD Power supply voltage | V0-XV0 | -0.3 | － | 19 | V |
| LCD Power supply voltage | VG | -0.3 | － | 5.5 | V |
Caratteristiche elettriche
| Articolo | Simbolo | Condizione | Valore Min | Valore tipico | Valore massimo | Unità |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 3.0 | 3.3 | 3.6 | V |
| Supply Voltage For LCM | VOP | Ta=-20℃ Ta=25℃ Ta=+70℃ |
－ 14.8 － |
－ 15.0 － |
－ 15.2 － |
V V V |
| Input High Volt. | VIH | － | 0.7VDD | － | VDD | V |
| Input Low Volt. | VIL | － | VSS | － | 0.3 VDD | V |
| Output High Volt. | VOH | － | 0.8 VDD | － | VDD | V |
| Output Low Volt. | VOL | － | VSS | － | 0.2VDD | V |
| Supply Current | IDD | VDD=3.3V | － | 2.0 | 4.0 | mA |
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