1.5, 128x128 COG OLED Grafici - WEO128128H

1.5" 128x128 COG OLED Grafici

Modello numero WEO128128H

►Tipo: grafico
►Struttura: COG
►Dimensione: 1.5 pollici
►128 x 128 a matrice di punti
►IC：CH1120
►Alimentatore 3V
►1/128 duty
►IInterfaccia: 8080,SPI,I2C
►Colore display: Bianco / Giallo
►Support Grayscale

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Descrizione

DISEGNO

1.5 inch OLED, 128x128 SPI OLED Display - WEO128128H

Data source ref:WEO128128HLAP3N00000

SPECIFICHE TECNICHE

Dati meccanici

Articolo	Dimensioni	Unità
A matrice di punti	128 × 128	dots
Dimensione del modulo	33.80 x 36.50 x 2.01	mm
Area attiva	26.86 x 26.86	mm
Dimensioni del Dot	0.185 x 0.185	mm
Passo del Dot	0.210 x 0.210	mm
Modalità display	Passive Matrix
Colore display	Monochrome
Drive Duty	1/128 Duty
Scala di grigi	4 bits
IC	CH1120
Interfaccia	8080,SPI,I2C
Interfaccia Dimensione (Diagonale)	1.5 inch

Valori massimi assoluti

Parameter	Simbolo	Valore Min	Valore massimo	Unità
Supply Voltage for Logic	VDD	-0.3	3.5	V
Supply Voltage for Display	VPP	-0.3	15.0	V
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TSTG	-40	+85	°C

Caratteristiche elettriche

Articolo	Simbolo	Condizione	Valore Min	Valore tipico	Valore massimo	Unità
Supply Voltage for Logic	VDD	－	1.65	3.0	3.3	V
Supply Voltage for Display	VPP	－	8.0	14.5	15.0	V
Input High Volt.	VIH	－	0.8×VDD	－	VDD	V
Input Low Volt.	VIL	－	GND	－	0.2×VDD	V
Output High Volt.	VOH	－	0.8×VDD	－	VDD	V
Output Low Volt.	VOL	－	GND	－	0.1×VDD	V
Display 50% Pixel on	IPP	VPP=14.5V	－	20	30	mA

Funzione dei Pin di Interfaccia

No.

Simbolo

Funzione

ESD_GND

This pin should be connected to GND.

VPP

This is the most positive voltage supply pin of the chip.
It should be supplied externally.

VCOMH

This is a pin for the voltage output high level for common signals.
A capacitor should be connected between this pin and GND.

VDD

Power supply for logic

No connection

IM1

These are the MPU interface mode select pins.

	8080	3-wire SPI	4-wire SPI	I2C
IM1	1	0	0	1
IM2	1	1	0	0

These pins must be connected to “H” or “L”.

IM2

VSS

Ground for logic and analog. This pin should be connected to GND externally.

IREF

This is a segment current reference pin.
A resistor should be connected between this pin and GND.

CSB

This pin is the chip select input. When CSB = “L”, then the chip select becomes active, and data/command I/O is enabled.
When in I2C interface, this pin is not used, so it must be connected to “L”.

RESB

This is a reset signal input pin. When RESB is set to “L”, the settings are initialized. The reset operation is performed by the RESB signal level. This pin internal pull high.

This is the Data/Command control pin that determines whether the data bits are data or a command.
A0 = “H”: the inputs at D0 to D7 are treated as display data
A0 = “L”: the inputs at D0 to D7 are transferred to the command registers.
In I2C interface, this pin serves as SA0 to distinguish the different address of OLED driver.
When in 3-wire interface, this pin is not used, so it must be connected to “L”.

WRB

This is a MPU interface input pin.
When connected to an 8080 MPU, this is active LOW. This pin connects to the 8080 MPU WR signal. The signals on the data bus are latched at the rising edge of the WR signal
When in 3-wire.4-wire & I2C interface, this pin is not used, so it must be connected to “L”.

RDB

This is a MPU interface input pin.
When connected to an 8080 series MPU, it is active LOW. This pin is connected to the RD signal of the 8080 series MPU, and the data bus is in an output status when this signal is “L”.
When in 3-wire.4-wire & I2C interface, this pin is not used, so it must be connected to “L”.

This is an 8-bit bi-directional data bus that connects to an 8-bit or 16-bit standard MPU data bus.
When the serial interface(SPI) and I2C is selected, then D0 serves as the serial clock input pin (SCL) and D1 serves as the serial data input pin (SI). At this time, D2 to D7 are set to high impedance. D7~D2 is recommended to connect the VDD or GND. It is also allowed to leave D7~D2 unconnected.

VPP

This is the most positive voltage supply pin of the chip
It should be supplied externally.