128x128 Circolare Display LCD COG (+PCB)
Modello numero WO128128A2
►LCD COG
►LCD Grafico
►128×128 punti
►A bordo Controllore ST75161
►Alimentatore +3V
►1/136 duty cycle
►Interfaccia : Default 8080, Option 6800, SPI-4 Line/SPI-3Line 9bit, I2C
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. |
| 5 | A0 | It determines whether the access is related to data or command. |
| 6 | ERD | Read / Write execution control pin. |
| 7 | RWR | Read / Write execution control pin. |
| 8 | RSTB | Hardware reset input pin |
| 9-16 | D0-D7 | When using 8-bit parallel interface: 8080 or 6800 mode:8 bit bi-directional data bus When using serial interface : 4-line SPI or 3-line SPI mode D[7:4] : fix to “H” by VDD1. D[3:1] : serial input/output data (SDA). D[0] : serial input clock (SCL). D1 to D3 must be connected together (SDA) When using serial interface : I2C interface D[7] : SA[1], I2C slave address bit. Must be connected to VDD1 or VSS1. D[6] : SA[0], I2C slave address bit. Must be connected to VDD1 or VSS1. D[5:4] : fix to “H” by VDD1. D[3:2] : SDA_OUT, serial data and acknowledge output for the I2C interface. D[1] : SDA_IN, serial input data D[0] : SCL, serial input clock . D1 to D3 must be connected together (SDA) CSB must be fixed to “L” by VSS1. |
| 17 | A | Anode input for LED backlight. |
| 18 | K | Cathode input for LED backlight |
Specifiche generali
| Articolo | Dimensioni | Unità |
|---|---|---|
| A matrice di punti (Risoluzione) | 128 x 128 | － |
| Dimensione del modulo | 60.0 x 62.79 x 8.6 | mm |
| Area di visualizzazione | 42.0 x 42.0 | mm |
| Area attiva | 44.0 x 44.0 | mm |
| Dimensioni del Dot | 0.308 x 0.308 | mm |
| Passo del Dot | 0.310 x 0.310 | mm |
| Duty | 1/136 Duty,1/12 Bias | |
| Tipo di backlight | LED | |
| IC | ST75161 | |
Valori massimi assoluti
| Articolo | Simbolo | Valore Min | Valore tipico | Valore massimo | Unità |
|---|---|---|---|---|---|
| Temperatura di lavoro | TOP | -20 | － | +70 | ℃ |
| Temperatura di stock | TST | -30 | － | +80 | ℃ |
| Power Supply Voltage | VDD | -0.3 | － | 4.0 | V |
| LCD Power supply voltage | VLCD | -0.3 | － | 20 | V |
| LCD Power supply voltage | V0-XV0 | -0.3 | － | 19 | V |
| Input voltage | VIN | -0.3 | VDD+0.3 | V |
Caratteristiche elettriche
| Articolo | Simbolo | Condizione | Valore Min | Valore tipico | Valore massimo | Unità |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 2.7 | 3.0 | 3.3 | V |
| Supply Voltage For LCD | VOP | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 13.7 － |
－ 14.0 － |
－ 14.3 － |
V V V |
| Input High Volt. | VIH | － | 0.7 VDD | － | 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 | － | 0.2 VDD | V |
| Supply Current | IDD | VDD=3.0V | － | 2.0 | － | mA |
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