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| 型号： | ST7FLITES2Y0B6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDIP16 |
| 封装： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件页数： | 93/124页 |
| 文件大小： | 2155K |
| 代理商： | ST7FLITES2Y0B6 |
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ST7LITE0xY0, ST7LITESxY0
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11.4 8-BIT A/D CONVERTER (ADC)
11.4.1 Introduction
The on-chip Analog to Digital Converter (ADC) pe-
ripheral is a 8-bit, successive approximation con-
verter with internal sample and hold circuitry. This
peripheral has up to 5 multiplexed analog input
channels (refer to device pin out description) that
allow the peripheral to convert the analog voltage
levels from up to 5 different sources.
The result of the conversion is stored in a 8-bit
Data Register. The A/D converter is controlled
through a Control/Status Register.
11.4.2 Main Features
■ 8-bit conversion
■ Up to 5 channels with multiplexed input
■ Linear successive approximation
■ Dual input range
–0 to VDD or
– 0V to 250mV
■ Data register (DR) which contains the results
■ Conversion complete status flag
■ On/off bit (to reduce consumption)
■ Fixed
gain operational amplifier (x8) (not
available on ST7LITES5 devices)
11.4.3 Functional Description
11.4.3.1 Analog Power Supply
The block diagram is shown in Figure 44.
VDD and VSS are the high and low level reference
voltage pins.
Conversion accuracy may therefore be impacted
by voltage drops and noise in the event of heavily
loaded or badly decoupled power supply lines.
For more details, refer to the Electrical character-
istics section.
11.4.3.2 Input Voltage Amplifier
The input voltage can be amplified by a factor of 8
by enabling the AMPSEL bit in the ADAMP regis-
ter.
When the amplifier is enabled, the input range is
0V to 250 mV.
For example, if VDD = 5V, then the ADC can con-
vert voltages in the range 0V to 250mV with an
ideal resolution of 2.4mV (equivalent to 11-bit res-
olution with reference to a VSS to VDD range).
For more details, refer to the Electrical character-
istics section.
Note: The amplifier is switched on by the ADON
bit in the ADCCSR register, so no additional start-
up time is required when the amplifier is selected
by the AMPSEL bit.
1
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| ST7FLITES5Y0M6TRE | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16 |
| ST7FLITE05Y0M6TR | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16 |
| ST7FLITE05Y0U6 | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, QCC20 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ST7FLITES2Y0B6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, timers, SPI |
| ST7FLITES2Y0M6 | 功能描述:8位微控制器 -MCU Flash 1K SPI RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ST7FLITES2Y0M6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, timers, SPI |
| ST7FLITES2Y0U6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, timers, SPI |
| ST7FLITES2Y0U6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, timers, SPI |
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