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參數(shù)資料
| 型號(hào)： | ST7066-0A |
| 英文描述： | Controller Miscellaneous - Datasheet Reference |
| 中文描述： | 控制器雜項(xiàng)-數(shù)據(jù)表參考 |
| 文件頁數(shù)： | 22/30頁 |
| 文件大小： | 363K |
| 代理商： | ST7066-0A |
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ST7066
Interfacing to the MPU
V1.1
1999/12/29
22
The ST7066 can send data in either two 4-bit operations or one 8-bit operation, thus allowing interfacing with 4- or
8-bit MPU.
!"
For 4-bit interface data, only four bus lines (DB4 to DB7) are used for transfer. Bus lines DB0 to DB3 are
disabled. The data transfer between the ST7066 and the MPU is completed after the 4-bit data has been
transferred twice. As for the order of data transfer, the four high order bits (for 8-bit operation, DB4 to DB7) are
transferred before the four low order bits (for 8-bit operation, DB0 to DB3). The busy flag must be checked (one
instruction) after the 4-bit data has been transferred twice. Two more 4-bit operations then transfer the busy flag
and address counter data.
!"
For 8-bit interface data, all eight bus lines (DB0 to DB7) are used.
Supply Voltage for LCD Drive
There are different voltages that supply to ST7066’s pin (V1 - V5) to obtain LCD drive waveform. The relations of the
bias, duty factor and supply voltages are shown as below:
Duty Factor
1/8, 1/11
1/16
Bias
Supply Voltage
1/4
1/5
V1
Vcc - 1/4V
LCD
Vcc - 1/5V
LCD
V2
Vcc - 1/2V
LCD
Vcc - 2/5V
LCD
V3
Vcc - 1/2V
LCD
Vcc - 3/5V
LCD
V4
Vcc - 3/4V
LCD
Vcc - 4/5V
LCD
V5
Vcc - V
LCD
Vcc- V
LCD
R
R
R
R
R
VR
R
R
R
R
VR
V1
V1
Vcc
V2
V3
V4
V5
Vcc
V2
V3
V4
V5
-5V
+5V
-5V
1/4 bias
(1/8, 1/11 duty
cycle)
1/5 bias
(1/16 duty
cycle)
V
LCD
V
LCD
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST7066-0B | Controller Miscellaneous - Datasheet Reference |
| ST72311N5B6 | 8-BIT MICROCONTROLLER |
| ST72311N6B6 | 8-BIT MICROCONTROLLER |
| ST72311R4Q6 | 8-BIT MICROCONTROLLER |
| ST72311R5Q6 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST7066-0B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| ST7066U | 制造商:SITRONIX 制造商全稱:SITRONIX 功能描述:Dot Matrix LCD Controller/Driver |
| ST7070 | 制造商:SITRONIX 制造商全稱:SITRONIX 功能描述:Dot Matrix LCD Controller/Driver |
| ST7078 | 制造商:Pulse 功能描述:CMC - Bulk |
| ST7078001 | 制造商:PULSE 功能描述:* |
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