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參數資料
| 型號： | MC68HC705L16 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 8-Bit Microcontroller Units (MCU).(8位微控制器) |
| 中文描述： | 8位微控制器單元（MCU）。（8位微控制器） |
| 文件頁數： | 7/28頁 |
| 文件大小： | 139K |
| 代理商： | MC68HC705L16 |
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Application Note
Liquid Crystal Displays
AN1763
MOTOROLA
7
Duplex Mode
Thewaveformsforduplexmodemultiplexingareshownin
Figure5
.The
first thing to notice here is that there are now three voltage levels in each
waveform. This is known as 1/2 bias. Connections to the V
LCD
pins for
this configuration should be made as shown in
Figure 4
.
Also obvious from these waveforms is that there are two time cycles in
each waveform which make up a frame.
They are:
When frontplanes connected to segments with backplane 0 are
active
When frontplanes connected to segments with backplane 1 are
active
In time cycle one, frontplane X is ON, while in cycle two, it is OFF.
Frontplane Y is OFF in both cycles.
Looking at the waveform for BP0–FPX, the ON data produces the
maximum voltage swing, V
LCD
, during its active time, cycle one. The
waveform BP1–FPX has OFF data which produces a 0 voltage swing
during its active time, cycle two.
NOTE:
Notice that when both of these segments are not active, they have the
same voltage swing, V
LCD
/2, even though one has OFF data when non-
active and the other has ON data when non-active. This is important
because the RMS voltages for ON and OFF waveforms should be
independent of the data during non-active cycles. Otherwise, there
would be multiple ON RMS voltages as well as OFF RMS voltages.
Figure 6
shows the components for calculating the RMS waveforms for
duplex mode ON and OFF cases. The ON and OFF RMS voltages are
calculated as:
For V
LCD
= 5 volts, V
RMSON
= 3.95 volts, and V
RMSOFF
= 1.75 volts
VRMSON
1
2
--
VLCD
2
VLCD
2
----------------
2
+
0.79 V
LCD
=
=
VRMSOFF
1
2
--
2
----------------
2
0.353 VLCD
=
=
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| MC68HC705L5FUE | 功能描述:8位微控制器 -MCU 705L5-EPP-80QFP-6019 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
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| MC68HC705P6ACP | 功能描述:IC MCU 2.1MHZ 4.5K OTP 28-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關文件:STM32F101T8 View All Specifications 特色產品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數:26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數據轉換器:A/D 10x12b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND |
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