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參數(shù)資料
| 型號(hào)： | UPD753204GT |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 4位單晶片微控制器 |
| 文件頁(yè)數(shù)： | 32/80頁(yè) |
| 文件大?。?/td> | 577K |
| 代理商： | UPD753204GT |
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32
μ
PD753204, 753206, 753208
6.8 LCD Controller/Driver
The
μ
PD753208 incorporates a display controller which generates segment and common signals according
to the display data memory contents and incorporates segment and common drivers which can drive the panel
directly.
The
μ
PD753208 LCD controller/driver functions are as follows:
Display data memory is read automatically by DMA operation and segment and common signals are
generated.
Display mode can be selected from among the following five:
<1>
Static
<2>
1/2 duty (time multiplexing by 2), 1/2 bias
<3>
1/3 duty (time multiplexing by 3), 1/2 bias
<4>
1/3 duty (time multiplexing by 3), 1/3 bias
<5>
1/4 duty (time multiplexing by 4), 1/3 bias
A frame frequency can be selected from among four in each display mode.
A maximum of 12 segment signal output pins (S12 to S23) and four common signal output pins (COM0 to
COM3).
The segment signal output pins (S16 to S23) can be changed to the I/O ports (PORT8 and PORT9).
Split-resistor can be incorporated to supply LCD drive power. (Mask option)
–
Various bias methods and LCD drive voltages can be applicable.
–
When display is off, current flowing through the split resistor is cut.
Display data memory not used for display can be used for normal data memory.
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