产品叙述
WO12864K和WO12864K1型号是单色COG绘图型LCD模块，显示形式为128x64点矩阵式。 WO12864K / WO12864K1 COG模块内建ST7565 IC，支持8-bit 6800、8-bit 8080并列接口以及4线SPI串行接口。电源电压3V，VOP 9.5V，1/65 duty 驱动方式。 WO12864K使用负压的ST7565V IC而WO12864K1则使用正压的ST7565P IC。
此模块工作温度为-20℃至+70℃； 储存温度为-30℃至+80℃。 WO12864K / K1提供STN负显，蓝色透射式LCD和白色LED背光。 如果您需要不同类型LCD或LED组合，请与我们联系。
规格图
Data source ref: WO12864K-TMI#
产品规格
Pin功能定义
| Pin No. | 符号 | 说明 |
|---|---|---|
| 1 | /CS1 | This is the chip select signal. When /CS1 = “L”, then the chip select becomes active, and data/command I/O is enabled. |
| 2 | /RES | I When /RES is set to “L,” the settings are initialized. The reset operation is performed by the /RES signal level. |
| 3 | A0 | This is connect to the least significant bit of the normal MPU address bus, and it determines whether the data bits are data or a command. A0 = “H”: Indicates that D0 to D7 are display data. A0 = “L”: Indicates that D0 to D7 are control data |
| 4 | /WR | • When connected to an 8080 MPU, this is active LOW. (R/W) This terminal connects to the 8080 MPU /WR signal. The signals on the data bus are latched at the rising edge of the /WR signal. • When connected to a 6800 Series MPU: This is the read/write control signal input terminal. When R/W = “H”: Read. When R/W = “L”: Write. |
| 5 | /RD | • When connected to an 8080 MPU, this is active LOW. (E) This pin is connected to the /RD signal of the 8080 MPU, and the ST7565V series data bus is in an output status when this signal is “L”. • When connected to a 6800 Series MPU, this is active HIGH. This is the 6800 Series MPU enable clock input terminal. |
| 6 | D0 | 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 is selected (P/S = “L”) : D7 : serial data input (SI) ; D6 : the serial clock input (SCL). D0 to D5 are set to high impedance. When the chip select is not active, D0 to D7 are set to high impedance. |
| 7 | D1 | |
| 8 | D2 | |
| 9 | D3 | |
| 10 | D4 | |
| 11 | D5 | |
| 12 | D6 | |
| 13 | D7 | |
| 14 | VDD | Shared with the MPU power supply terminal Vcc. |
| 15 | GND | This is a 0V terminal connected to the system GND. |
| 16 | VOUT | DC/DC voltage converter. Connect a capacitor between this terminal and VSS. |
| 17 | CAP3- | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1+ terminal. |
| 18 | CAP1+ | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1- terminal. |
| 19 | CAP1- | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1+ terminal. |
| 20 | CAP2- | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal. |
| 21 | CAP2+ | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2+ terminal. |
| 22 | V1 | This is a multi-level power supply for the liquid crystal drive. The voltage Supply applied is determined by the liquid crystal cell, and is changed through the use of are sistive voltage divided or through changing the impedance using an op. amp. Voltage levels are determined based on VDD, |
| 23 | V2 | |
| 24 | V3 | |
| 25 | V4 | |
| 26 | V5 | |
| 27 | VR | Output voltage regulator terminal. Provides the voltage between VDD and V5 through a resistive voltage divider. IRS = “L” : the V5 voltage regulator internal resistors are not used . IRS = “H” : the V5 voltage regulator internal resistors are used . |
| 28 | C86 | This is the MPU interface switch terminal. C86 = “H”: 6800 Series MPU interface. C86 = “L”: 8080 MPU interface. |
| 29 | 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. 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 . |
| 30 | IRS | This terminal selects the resistors for the V5 voltage level adjustment. IRS = “H”: Use the internal resistors IRS = “L”: Do not use the internal resistors. The V5 voltage level is regulated by an external resistive voltage divider attached to the VR terminal |
规格说明
| 项目 | 规格 | 单位 |
|---|---|---|
| 点阵(分辨率) | 128 x 64 | － |
| 模块尺寸 | 89.7 x 49.8 x 6.0 | mm |
| 检视区域 | 66.8 x 35.5 | mm |
| 有效区域 | 63.98 x 31.98 | mm |
| 点大小 | 0.48 x 0.48 | mm |
| 点间距 | 0.50x 0.50 | mm |
| 驱动方式 | 1/65 duty , 1/9 Bias | |
| 背光类型 | LED | |
| IC | ST7565V | |
最大绝对额定值
| 项目 | 符号 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|
| 工作温度 | TOP | -20 | － | +70 | ℃ |
| 储存温度 | TST | -30 | － | +80 | ℃ |
| 电源电压 | VSS | -3.6 | － | +0.3 | V |
| 电源电压 (VDD standard) | V5, VOUT | -13.5 | － | +0.3 | V |
| 电源电压 (VDD standard) | V1, V2, V3, V4 | V5 | － | +0.3 | V |
电气特性
| 项目 | 符号 | 条件 | 最小值 | 典型值 | 最大值 | 单位 |
|---|---|---|---|---|---|---|
| 逻辑电源电压 | VDD-VSS | － | 2.8 | 3.0 | 3.2 | V |
| LCD供电电压 | VOP | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ 9.3 － |
－ 9.5 － |
－ 9.7 － |
V V V |
| 输入高电压 | VIH | － | 0.8 VDD | － | VDD | V |
| 输入低电压 | VIL | － | Vss | － | 0.2 VDD | V |
| 输出高电压 | VOH | － | 0.8 VDD | － | VDD | V |
| 输出低电压 | VOL | － | Vss | － | 0.2 VDD | V |
| 供电电流 | IDD | VDD=3.0V | － | － | 2.0 | mA |
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