128×64 Chip on Glass LCD (ST7567S)

Model No. WO12864T1

Monochrome Display
Graphic LCD
COG LCD
Display Format : 128×64
IC: ST7565S
3V power supply
1/65 duty cycle, 1/9 bias
Interface : 6800/8080/SPI

Category: COG LCD

Description

WO12864T1 is a monochrome graphic LCD module made of 128×64 dot matrix format. This COG module is built in with ST7567S IC, it supports 8-bit 6800, 8-bit 8080 parallel and 4-wire serial SPI interface, 1/65 driving duty, 1/9 Bias. WO12864T1 is the alternative model for WO12864T corresponding IC shortage or longer lead-time. This module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃. This LCD COG 128×64 display is very suitable for applications that demand more compact package displays.

Drawing

Data source ref:WO12864T1-TFH#

Interface Pin Function

Pin No.

Symbol

Description

VDD

Power supply pin for logic.

VSS

Ground pin, connected to 0V

CSB

Chip select input pin.

RSTB

Hardware reset input pin

It determines whether the access is related to data or
command.

RWR

C86	MPU Type	RWR	Description
H	6800 series	R/W	Read/Write control input pin. R/W=“H”: read. R/W=“L”: write.
L	8080 series	/WR	Write enable input pin. Signals on D[7:0] will be latched at the rising edge of /WR signal.

RWR is not used 4-line SPI interface and should fix to “H” by VDD

ERD

C86	MPUType	ERD	Description
H	6800 series	E	Read/Write control input pin. R/W=”H“: When E is “H”, D[7:0] are in output mode. R/W=”L“: Signals on D[7:0] are latched at the falling edge of E signal.
L	8080 series	/RD	Read enable input pin. When /RD is “L”, D[7:0] are in output mode.

ERD is not used in 4-Line SPI interface and should fix to “H” by VDD

9~16

D0~D7

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

When using serial interface: 4-line SPI
D[0]=SCL: Serial clock input.
D[1]=SDA_IN: Serial data input.
D[2:3]=SDA_OUT: Serial data output.
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.
ID[0:3] can be read 4-bit ID only for serial interface from D[4:7].

C86

C86 selects the microprocessor type in parallel interface mode.

PSB	C86	Selected Interface
“L”	“H”	Serial 4-Line SPI Interface
“H”	“L”	Parallel 8080 Series MPU Interface
“H”	“H”	Parallel 6800 Series MPU Interface

PSB

PSB selects the interface type: Serial or Parallel.

General Specifications

Item	Dimension	Unit
Number of dots	128 × 64	－
Module dimension	38.0 × 26.42 × 8.8(MAX)	mm
View area	29.58 × 16.22	mm
Active area	25.58 × 14.06	mm
Dot size	0.18 × 0.20	mm
Dot pitch	0.20 × 0.22	mm
Duty	1/65 DUTY;1/9 BIAS
Backlight Type	LED
IC	ST7567S
Interface	6800/8080/4-Line SPI

Absolute Maximum Ratings

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	T_OP	-20	－	+70	℃
Storage Temperature	T_ST	-30	－	+80	℃
Input Voltage	V_I	-0.3	－	VDD+0.3	V
Digital Power Supply Voltage	V_DD-V_ss	-0.3	－	4.0	V
LCD Power supply voltage	V0-XV0	-0.3	－	14.0	V

Electrical Characteristics

Item	Symbol	Condition	Min.	Typ.	Max.	Unit
Supply Voltage For Logic	V_DD-V_SS	－	2.7	3.0	3.3	V
Supply Voltage For LCD	V_OP	Ta=-20℃ Ta=25℃ Ta=70℃	－ 8.9 －	－ 9.1 －	－ 9.3 －	V V V
Input High Volt.	V_IH	－	0.7V_DD	－	V_DD	V
Input Low Volt.	V_IL	－	V_SS	－	0.3V_DD	V
Output High Volt.	V_OH	－	0.8V_DD	－	V_DD	V
Output Low Volt.	V_OL	－	V_DD	－	0.2V_DD	V
Supply Current	I_DD	VDD=3.0V	－	－	1.5	mA

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