128×64 ST7567 Chip on Glass LCD Module

Model No. WO12864N

128×64 COG LCD Module
Graphic LCD
IC: ST7567
3V power supply
1/65 duty cycle
Interface : 6800/8080/SPI

Category: COG LCD

Description

WO12864N is a 128×64 COG Graphic LCD display. This LCD module is built in with ST7567 controller IC, driving duty 1/65. It supports 6800 8-bit, 8080 8-bit parallel and 4-line SPI interface. This LCD module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃. WO12864N is COG structure display that is very suitable for applications that demand a more compact package. Please note the WO12864N is the alternative model for WO12864B1 corresponding IC shortage or longer lead-time.

Drawing

Interface Pin Function

Pin	Symbol	Description
1	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.
2	RSTB	Hardware reset input pin. When RSTB is “L”, interna initialization is executed and the internal registers will be initialized.
3	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
4	RWR	Read/Write execution control pin. When PSB is “H”, RWR is not used in serial interface and should fix to “H” by VDD1 or VDDH.
5	ERD	Read/Write execution control pin. When PSB is “H”, ERD is not used in serial interface and should fix to “H” by VDD1 or VDDH.
6	D0	When using 8-bit parallel interface: (6800 or 8080 mode) 8-bit bi-directional data bus. Connect to the data bus of 8-bit microprocessor. When CSB is non-active (CSB=“H”), D[7:0] pins are high impedance.
7	D1
8	D2
9	D3
10	D4
11	D5
12	D6
13	D7
14	VDD	Power supply
15	Vss	Ground
16-19	NC	Not connect.
20	V0	V0 is the LCD driving voltage for common circuits at negative frame.
21	XV0	XV0 is the LCD driving voltage for common circuits at positive frame.
22	VG	VG is the LCD driving voltage for segment circuits.
23-27	NC	Not connect.
28	C86	C86 selects the microprocessor type in parallel interface mode.
29	PSB	PSB selects the interface type: Serial or Parallel.
30	NC	Not connect.

General Specifications

Item	Dimension	Unit
Number of dots	128 x 64	－
Module dimension	89.7 x 49.8 x 6.0	mm
View area	69.0 x 36.5	mm
Active area	63.97 x 31.97	mm
Dot size	0.47 x 0.47	mm
Dot pitch	0.5 x 0.5	mm
Duty	1/65 , 1/9 Bias
Backlight Type	LED
IC	ST7567
Interface	6800/8080/4-Line SPI

Absolute Maximum Ratings

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	－	+70	℃
Storage Temperature	TST	-30	－	+80	℃
Input Voltage	VI	-0.3	－	VDD+0.3	V
Digital Power Supply Voltage	VDD-Vss	-0.3	－	3.6	V
LCD Power supply voltage	V0-XV0	-0.3	－	16	V

Electrical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD-VSS	－	2.8	3.0	3.2	V
Supply Voltage For LCM *Note	VOP	Ta=-20℃ Ta=25℃ Ta=70℃	－ 9.3 －	－ 9.5 －	－ 9.7 －	V V V
Input High Volt.	VIH	－	0.7 VDD	－	VDD	V
Input Low Volt.	VIL	－	Vss	－	0.3VDD	V
Output High Volt.	VOH	－	0.8 VDD	－	VDD	V
Output Low Volt.	VOL	－	Vss	－	0.2VDD	V
Supply Current	IDD	VDD=3.0V	－	0.7	1.0	mA

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