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參數資料
| 型號： | W79E201A16FN |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | ROHS COMPLIANT, QFP-44 |
| 文件頁數： | 60/87頁 |
| 文件大小： | 818K |
| 代理商： | W79E201A16FN |
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W79E201
- 60 -
15. ANALOG-TO-DIGITAL CONVERTER
The ADC contains a DAC which converts the contents of a successive approximation register to a
voltage (V
DAC
) which is compared to the analog input voltage (Vin). The output of the comparator is
fed to the successive approximation control logic which controls the successive approximation
register. A conversion is initiated by setting ADCS in the ADCCON register. ADCS can be set by
software only or by either hardware (P2.0) or software.
Before used ADC circuit, it must enabled by ADCCEN. The software only start mode is selected when
control bit ADCCON.5 (ADEX) =0. A conversion is then started by setting control bit ADCCON.3
(ADCS) The hardware or software start mode is selected when ADCCON.5 =1, and a conversion may
be started by setting ADCCON.3 as above or by applying a rising edge to external pin STADC. When
a conversion is started by applying a rising edge, a low level must be applied to STADC for at least
one machine cycle followed by a high level for at least one machine cycle.
The low-to-high transition of STADC is recognized at the end of a machine cycle, and the conversion
commences at the beginning of the next cycle.
V
DAC
Vin
DAC
Successive
Approximation
Register
Successive
Approximation
Control Logic
Start
Ready
(Stop)
MSB
LSB
Comparator
Successive Approximation ADC
The end of the 10-bit conversion is flagged by control bit ADCCON.4 (ADCI). The upper 8 bits of the
result are held in special function register ADCH, and the two remaining bits are held in ADCCON.7
(ADC.1) and ADCCON.6 (ADC.0). The user may ignore the two least significant bits in ADCCON and
use the ADC as an 8-bit converter (8 upper bits in ADCH). In any event, the total actual conversion
time is 50 machine cycles. ADC will be set and the ADCS status flag will be reset 50 cycles after the
ADCS is set.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W79E201A16LN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79E201A16PL | 功能描述:IC MCU 8-BIT 16K FLASH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W79 標準包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO，I²C，LIN，UART/USART 外圍設備:DMA，LVD，POR，PWM，WDT 輸入/輸出數:27 程序存儲器容量:16KB（16K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:38-SSOP 包裝:托盤 |
| W79E201A16PN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W79E2051 | 制造商:WINBOND 制造商全稱:Winbond 功能描述: |
| W79E2051AKG | 制造商:Winbond Electronics Corp 功能描述:8 BIT MCU 制造商:Nuvoton Technology Corp 功能描述:IC MCU 2KB FLASH 20PDIP |
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