收藏本站
参数资料
型号： R5F212BASNFA
元件分类： 微控制器/微处理器
英文描述： 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
封装： 14 X 14 MM, 0.80 MM PITCH, PLASTIC, LQFP-48
文件页数： 59/138页
文件大小： 492K
代理商： R5F212BASNFA
239
4317K–AVR–03/2013
AT90PWM2/3/2B/3B
Figure 21-6. ADC Timing Diagram, Auto Triggered Conversion
Figure 21-7. ADC Timing Diagram, Free Running Conversion
21.5
Changing Channel or Reference Selection
The MUXn and REFS1:0 bits in the ADMUX Register are single buffered through a temporary
register to which the CPU has random access. This ensures that the channels and reference
selection only takes place at a safe point during the conversion. The channel and reference
selection is continuously updated until a conversion is started. Once the conversion starts, the
channel and reference selection is locked to ensure a sufficient sampling time for the ADC. Con-
tinuous updating resumes in the last ADC clock cycle before the conversion completes (ADIF in
ADCSRA is set). Note that the conversion starts on the following rising ADC clock edge after
ADSC is written. The user is thus advised not to write new channel or reference selection values
to ADMUX until one ADC clock cycle after ADSC is written.
Table 21-1.
ADC Conversion Time
Condition
First Conversion
Normal
Conversion,
Single Ended
Auto Triggered
Conversion
Sample & Hold
(Cycles from Start of Conversion)
13.5
3.5
4
Conversion Time
(Cycles)
25
15.5
16
1
2
3
4
5
6
7
8
13
14
15
16
Sign and MSB of Result
LSB of Result
ADC Clock
Trigger
Source
ADIF
ADCH
ADCL
Cycle Number
12
One Conversion
Next Conversion
Conversion
Complete
Prescaler
Reset
ADATE
Prescaler
Reset
Sample &
Hold
MUX and REFS
Update
14
15
16
Sign and MSB of Result
LSB of Result
ADC Clock
ADSC
ADIF
ADCH
ADCL
Cycle Number
12
One Conversion
Next Conversion
34
Conversion
Complete
Sample & Hold
MUX and REFS
Update
5
相关PDF资料
PDF描述
R5F212ACSDFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212BCSNFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212BASNFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212ACSNFP 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP48
R5F212BASNLG 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PBGA64
相关代理商/技术参数
参数描述
R5F212BASNFA#U0 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 96KB FLASH 64LQFP 制造商:Renesas Electronics Corporation 功能描述:R8C Series 16 bit 7 kB RAM 96 kB Flash Single Chip Microcontroller SMT -LQFP-64
R5F212BASNFA#V0 功能描述:IC MCU 16/32BIT 96KB FLSH 64LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/2B 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR)
R5F212BASNFP 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:RENESAS MCU
R5F212BASNFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 96KB Flash 2.5V/3.3V/5V 64-Pin LQFP 制造商:Renesas Electronics Corporation 功能描述:MCU 16BIT R8C CISC 96KB FLASH 2.5V/3.3V/5V 64LQFP - Trays 制造商:Renesas Electronics Corporation 功能描述:MCU R8C/2B 制造商:Renesas Electronics 功能描述:MCU 16-Bit R8C CISC 96KB Flash 2.5V/3.3V/5V 64-Pin LQFP 制造商:Renesas 功能描述:MCU 16-Bit R8C CISC 96KB Flash 2.5V/3.3V/5V 64-Pin LQFP
R5F212BASNFP#V0 功能描述:IC R8C/2B MCU FLASH 64LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:R8C/2x/2B 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*