COG 液晶屏模組 2.82吋 128×64 繪圖型 - RX12864B

2.82吋 128×64 COG 液晶屏模組繪圖型 LCD (ST7565P IC)

Model No. RX12864B

RX12864B 是一款 2.82 吋 128×64 COG（Chip-on-Glass）繪圖型 LCD 模組，屬於高穩定性且結構緊湊的 COG 液晶屏。產品尺寸為 89.7×49.8 mm，顯示區域為 63.97×31.97 mm，提供清晰且穩定的視覺效果。此 COG 液晶屏採用 ST7565P 控制 IC，支援 8080 與 6800 平行介面，具備靈活的系統整合能力。外框設計包含四個固定孔，便於快速安裝，適用於工業控制與嵌入式應用環境。

RX12864B 可在 –20°C 至 +70°C 的寬溫範圍內穩定運作，邏輯電壓支援 2.7V–3.3V，具備低功耗與長期穩定性。此 COG液晶屏模組非常適合應用於控制面板、手持式儀器及測量設備。LED 背光提升可讀性，而 1/65 Duty 與 1/9 Bias 設定則確保亮度一致與對比度優異。

如需 RX12864B 或其他 COG 液晶屏模組的技術支援或產品報價，歡迎聯繫曜凌光電業務團隊！

資料參考來源: RX12864B-BIW

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一般規格
Pin 功能定義
規格圖
最大絕對額定值
電氣特性

項目	規格內容	單位
結構	COG
對角線尺寸	2.82	吋
點陣/解析度	128 × 64	dots
模組尺寸	89.7 × 49.8 × 12.1 (Max.)	mm
可視區域(VA)	69.0 × 36.5	mm
有效區域(AA)	63.97 × 31.97	mm
螺絲孔	82.7 × 40.2	mm
點(像素)大小	0.47 × 0.47	mm
點(像素)間距	0.50 × 0.50	mm
IC	ST7565P
介面	6800 / 8080 / SPI
電源電壓	3.3V
驅動方式(Duty)	1/65 duty cycle, 1/9 Bias
類型	繪圖型液晶模組 / 繪圖型 LCD / COG LCD

介面分位與信號功能說明

Pin No.

符號

I/O

功能說明

/CS1B

This is the chip select signal.

/RES

When RES is set to “L”, the setting are initialized.

This is connect to the least significant bit of the normal MPU address bus, and it determines whether the data bits are data or command.
A0 = “H”: Indicates that D0 to D7 are display data.
A0 = “L”: Indicates that D0 to D7 are control data.

/WR(R/W)

• When connected to 8080 series MPU, this pin is treated as the “/WR” signal of the 8080 MPU and is LOW-active.
The signals on the data bus are latched at the rising edge of the /WR signal.
• When connected to 6800 series MPU, this pin is treated as the “R/W” signal of the 6800 MPU and decides the access type :
When R/W = “H”: Read.
When R/W = “L”: Write.

/RD(E)

• When connected to 8080 series MPU, this pin is treated as the “/RD” signal of the 8080 MPU and is LOW-active.
The data bus is in an output status when this signal is “L”.
• When connected to 6800 series MPU, this pin is treated as the “E” signal of the 6800 MPU and is HIGH-active.
This is the enable clock input terminal of the 6800 Series MPU.

6~13

D0~ D7

I/O

Data bus line

VDD

Power
Supply

Power supply

VSS

Power
Supply

Ground

VOUT

DC/DC voltage converter. Connect a capacitor between this terminal and vss or VDD

CAP3P

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.

CAP1N

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1P terminal.

CAP1P

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.

CAP2P

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.

CAP2N

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2P terminal.

22~26

V4~ V0

Power
Supply

This is a multi-level power supply for the liquid crystal drive.

Output voltage regulator terminal. Provides the voltage between VSS and V0 through a resistive voltage divider.

C86

This is the MPU interface selection pin.
C86 = “H”: 6800 Series MPU interface.
C86 = “L”: 8080 Series MPU interface

P/S

This is the parallel data input/serial data input switch terminal.
P/S = “H”: Parallel data input.
P/S = “L”: Serial data input.
The following applies depending on the P/S status:

P/S	Data/Command	Data	Read/Write	Serial Clock
"H"	A0	D0 to D7	/RD, /WR	X
"L"	A0	SI (D7)	Write only	SCL (D6)

When P/S = “L”, D0 to D5 fixed “H”.
/RD (E) and /WR (R/W) are fixed to either “H” or “L”.
With serial data input, It is impossible read data from RAM

No connection.

RX12864B 外觀尺寸與固定孔位

COG 液晶屏模組 2.82吋 128×64 繪圖型 - RX12864B 規格書 - 曜凌光電

操作溫度與電壓範圍

項目	符號	最小值	典型值	最大值	單位
操作溫度	TOP	-20	－	+70	℃
儲存溫度	TST	-30	－	+80	℃
電源電壓	VDD	-0.3	－	3.6	V
電源電壓 (VDD standard)	V0, VOUT	-0.3	－	14.5	V
電源電壓 (VDD standard)	V1, V2, V3, V4	-0.3	－	V0+0.3	V

供電電壓與功耗參數

項目	符號	條件	最小值	典型值	最大值	單位
邏輯電源電壓	VDD-VSS	－	2.7	－	3.3	V
LCM供電電壓	Vo-VSS	Ta=-20℃ Ta=25℃ Ta=70℃	9.5 9.2 8.95	9.8 9.45 9.2	10.5 9.7 9.45	V V V
輸入高電壓	VIH	－	0.8 VDD	－	VDD	V
輸入低電壓	VIL	－	Vss	－	0.2 VDD	V
輸出高電壓	VOH	IOUT=-0.5mA	0.8 VDD	－	VDD	V
輸出低電壓	VOL	IOUT=0.5mA	Vss	－	0.2VDD	V
供電電流 (No include LED Backlight)	IDD	－	－	0.60	2.0	mA