【产品】8位增强型USB单片机CH549和CH548，内置12位ADC模数转换，支持全速和低速USB-Host主机模式
沁恒推出的CH549芯片是一款兼容MCS51指令集的增强型E8051内核单片机，其79%的指令是单字节单周期指令，平均指令速度比标准MCS51快8～15倍。CH549支持最高48MHz系统主频，内置64K程序存储器Flash-ROM和256字节内部iRAM以及2K字节片内xRAM，xRAM支持DMA直接内存存取。CH549内置了12位ADC模数转换、电容式触摸按键检测模块、TS温度传感器、内置时钟、3组定时器和3路信号捕捉、8路PWM、4组异步串口、SPI等功能模块，支持全速和低速USB-Host主机模式和USB-Device设备模式以及USB type-C，如需完整PD功能建议用CH543。CH548是CH549的简化版，程序存储器ROM仅32KB，异步串口仅提供UART0和UART1，其它与CH549相同。
图1CH549的内部框图
特点
●Core：增强型E8051内核，兼容MCS51指令集，其79%的指令是单字节单周期指令，平均指令速度比标准MCS51快8～15倍，特有XRAM数据快速复制指令，双DPTR指针。
●ROM：64KB非易失存储器 Flash-ROM，支持10K次擦写，可以全部用于程序存储空间；或者可以分为60KB程序存储区和1KB数据存储区EEPROM以及3KB引导代码BootLoader/ISP程序区。
●EEPROM：数据存储区EEPROM共1K字节，分为16个独立块，支持单字节读、单字节写、块写(1～64字节)、块擦除(64字节)操作，在典型环境下一般支持100K次擦写（非担保）。
●OTP：一次性可编程数据存储区OTP共32字节，支持双字读（4字节）、单字节写。
●RAM：256字节内部iRAM，可以用于快速数据暂存以及堆栈；2KB片内xRAM，可以用于大量数 据暂存以及DMA直接内存存取。
●USB：内嵌USB控制器和USB收发器，支持USB-Host主机模式和USB-Device设备模式，支持USB2.0全速12Mbps或者低速1.5Mbps。支持最大64字节数据包，内置FIFO，支持DMA。
●USB type-C：支持USB type-C主从检测，支持USB PD电力传输控制和32位CRC计算。
●Timer：3组定时器，T0/T1/T2为标准MCS51定时器。
●Capture：定时器T2扩展为支持3路信号捕捉。
●PWM：8路PWM输出，支持标准8位数据或者快速6位数据。
●UART：4组异步串口，UART0为标准MCS51串口；UART1/2/3自带通讯波特率设置寄存器。
●SPI：SPI控制器支持Master/Slave主从模式，内置FIFO，时钟频率最高可接近系统主频Fsys的一半，支持串行数据输入输出单工复用。
●ADC：16通道12位A/D模数转换器，支持多种组合的电压比较。
●Touch-Key：支持16通道电容触摸按键检测，每个ADC通道都支持触摸按键检测。
●TS：内置简单的温度传感器。
●GPIO：支持最多44个GPIO引脚(含XI和RST以及USB引脚)，支持MCS51兼容的准双向模式， 新增高阻输入、推挽输出、开漏输出模式，其中一个引脚支持12V高压开漏输出。
●Interrupt：支持16组中断信号源，包括与标准MCS51兼容的6组中断(INT0、T0、INT1、T1、UART0、T2)，以及扩展的10组中断(SPI0、INT3、USB、ADC/UART2、UART1、PWMX/UART3、GPIO、WDOG)，其中GPIO中断可以从7个引脚中选择。
●Watch-Dog：8位可预设看门狗定时器WDOG，支持定时中断。
●Reset：支持5种复位信号源，内置上电复位和多级可调的电源低压检测复位模块，支持软件 复位和看门狗溢出复位，可选引脚外部输入复位。
●Clock：内置24MHz时钟源，可以通过复用GPIO引脚支持外部晶体，内置PLL用于产生USB时钟和所需频率的系统主频Fsys。
●Power：内置5V到3.3V的低压差电压调整器，用于USB等模块，支持5V或3.3V甚至6V或2.8V电源电压。
●Sleep：支持低功耗睡眠，支持USB、UART0、UART1、SPI0、比较器以及部分GPIO外部唤醒。
芯片内置唯一ID号，支持ID号和校验。
绝对最大值(临界或者超过绝对最大值将可能导致芯片工作不正常甚至损坏)
表1
电气参数 5V(测试条件：TA=25℃，VDD=5V，Fsys=12MHz)
表2
封装
表3
封装尺寸
图2
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本文由三年不鸣转载自沁恒，原文标题为:8 位增强型 USB 单片机 CH549、CH548，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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产品型号
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品类
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Freq(MHz)
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Flash(KB)
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RAM(B)
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USB
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Touchkey
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TypeC
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ADC
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LEDC/RGB LED
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Timer
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CAP
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PWM
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UART
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SPI
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IIC
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I/O
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Builtin OSC/WDOG
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VDD(V)
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Package
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CH541
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8位增强型USB单片机
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24MHz
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16KB
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256+256B
|
D
|
11
|
√
|
12*12b
|
-/-
|
3*16b
|
2
|
4
|
1
|
1
|
1
|
17
|
√/√
|
3.3/5.0/9.0/12V
|
TSSOP20/SOP16
|
选型表 - 沁恒 立即选型
CH334U IC RoHS (SGS) Test Report (CANEC2304439901)
型号- CH32V103C6T6,CH32F103VCT6,CH32F205RBT6,CH32V103VBT6,CH370,CH251,CH372,CH132,CH374,CH252,CH376,CH375,CH378,CH32V107RCT6,CH32V208WBU6,CH32V403CBT6,CH32V003J4M6,CH32F103C6T6,CH382,CH384,CH32V305WBU6,CH237,CH358,CH32F107RCT6,CH236,CH357,CH32F103C8U6,CH238,CH359,CH32L103J4M6,CH32V103VCT6,CH590,CH350,CH471,CH592,CH591,CH231,CH352,CH351,CH472,CH593,CH233,CH354,CH232,CH353,CH235,CH356,CH234,CH355,CH248,CH247,CH368,CH249,CH32V107RBT6,CH32V203G6U6,CH482,CH360,CH481,CH242,CH484,CH241,CH483,CH244,CH365,CH486,CH122,CH243,CH364,CH246,CH367,CH245,CH366,CH457,CH578,CH3232,CH335,CH456,CH577,CH32V303VCT6,CH217,CH338,CH459,CH337,CH458,CH579,CH334U,CH339,CH32V003A4M6,CH32V405RBT6,CH570,CH330,CH451,CH572,CH450,CH571,CH332,CH453,CH574,CH331,CH452,CH573,CH213,CH334,CH455,CH576,CH454,CH575,CH226,CH347,CH225,CH228,CH227,CH348,CH32V403G6U6,CH32V407VCT6,CH32L103G6U6,CH581,CH341,CH462,CH583,CH340,CH582,CH32F208WBU6,CH343,CH464,CH221,CH342,CH463,CH224,CH345,CH344,CH465,CH314,CH556,CH313,CH555,CH316,CH558,CH315,CH557,CH318,CH317,CH438,CH559,CH319,CH32L103F4U6,CH32F103VBT6,CH552,CH32L103FBP6,CH551,CH312,CH554,CH311,CH432,CH553,CH446,CH567,CH445,CH448,CH569,CH447,CH568,CH449,CH32F207VCT6,CH440,CH561,CH321,CH442,CH563,CH441,CH562,CH323,CH444,CH565,CH322,CH443,CH564,CH413,CH534,CH412,CH533,CH536,CH538,CH537,CH539,CH32V103R8T6,CH9936,CH9937,CH32V203F8U6,CH32V403C6T6,CH530,CH32V203G8R6,CH411,CH532,CH410,CH531,CH424,CH545,CH423,CH544,CH547,CH546,CH549,CH548,CH32F103R8T6,CH32V403F8P6,CH32V407RCT6,CH541,CH32L103CBT6,CH540,CH422,CH543,CH421,CH542,CH633,CH632,CH635,CH32V003F4P6,CH634,CH516,CH637,CH636,CH639,CH638,CH32L103F4P6,CH32V307RCT6,CH32L103CBU6,CH631,CH32V203G8P6,CH523,CH522,CH643,CH525,CH524,CH527,CH526,CH529,CH528,CH32V203F6P6,CH521,CH642,CH520,CH641,CH32F107RBT6,CH32F203CBT6,CH32V105RBT6,CH32V103R6T6,CH32V403G8P6,CH622,CH621,CH32V003F4U6,CH32F103R6T6,CH32F105RCT6,CH32V403F6P6,CH32L103G8P6,CH32V105RCT6,CH32V403F8U6,CH32V403G8R6,CH32V303CBT6,DM7407,CH32L103F8U6,CH32V305FBP6,CH32L103F6P6,CH32V405FBP6,CH32L103G8R6,CH32V403K6T6,CH9415,CH9413,CH9414,CH9412,CH32F107VBT6,CH8572,CH8571,CH32F203C8T6,CH8570,CH9884,CH32V208RBT6,CH32L103C6T6,CH32V305RBT6,CH9516,CH9514,CH9515,CH9512,CH9513,CH9511,CH32V208GBU6,CH32L103F8P6,CH9882,CH32V203C8T6,CH9626,CH9627,CH9624,CH9625,CH9622,CH9623,CH32F105RBT6,CH9628,CH9629,CH32F203C8U6,CH32V203C8U6,CH9578,CH9576,CH9577,CH32V405WBU6,CH32V403C8T6,CH32F103RCT6,CH32V103RBT6,CH9100,CH9342,CH32F203C6T6,CH9341,CH9102,CH9344,CH9101,CH9343,CH9463,CH9340,CH9328,CH9327,CH9569,CH9329,CH9326,CH9565,CH9325,CH9445,CH9566,CH32V107VCT6,CH32L103C8T6,CH32V403C8U6,CH32F208RBT6,CH9331,CH9574,CH9330,CH9575,CH9573,CH32F203VCT6,CH9317,CH9318,CH9438,CH9435,CH9436,CH9315,CH9433,CH9434,CH32F107VCT6,CH32L103C8U6,CH32V103RCT6,CH9320,CH32V203C6T6,CH32V307VCT6,CH9426,CH32V107VBT6,CH32V403VCT6,CH9431,CH9552,CH9432,CH32V203F8P6,CH32V303RCT6,CH32L103K6T6,CH32F203K8T6,CH9144,CH32L103A4M6,CH9143,CH9145,CH9140,CH9142,CH9141,CH9126,CH32V407WCU6,CH32F105VCT6,CH32F203RCT6,CH9375,CH9374,CH9371,CH9370,CH9373,CH9130,CH9372,CH32V303RBT6,CH32F103RBT6,CH32V203K8T6,CH9122,CH9121,CH9120,CH32V307WCU6,CH9104,CH9346,CH9103,CH9345,CH32V403RCT6,CH32F203RBT6,CH9232,CH9110,CH9234,CH9230,CH9350,CH32V203RBT6,CH32V103C8T6,CH32V403K8T6,CH32L103K8T6,CH32F103C8T6,CH32V403RBT6,CH32V103C8U6,CH32V105VCT6,CH181,CH183,CH182,CH32V208CBU6,CH390,CH392,CH32V203K6T6,CH394,CH9165,CH396,CH395,CH32L103GBU6,CH398,CH397,CH9161,CH32F105VBT6,CH32V105VBT6,CH9397,CH9150,CH9153,CH9152
【视频】沁恒基于青稞RISC-V内核的MCU和自研PHY的USB/蓝牙/以太网接口芯片，适用于计算机、手机周边、工业控制、物联网
型号- CH32X035F8U6,CH32X035G8R6,CH32V303RCT6,CH32V103R8T6,CH32V103C6T6,CH32F203K8T6,CH32V203F8U6,CH32F205RBT6,CH32F203C8T6,CH32V203G8R6,CH532,CH531,CH545,CH32X035,CH547,CH546,CH549,CH548,CH32V208WBU6,CH32V208RBT6,CH32F103R8T6,CH32V003J4M6,CH32F103C6T6,CH32F203RCT6,CH32V305RBT6,CH541,CH543,CH32V003F4P6,CH32F103C8U6,CH32X035C8T6,CH32V303RBT6,CH32V208GBU6,CH32V307RCT6,CH32V203K8T6,CH32L103F8P6,CH592,CH32V203C8T6,CH591,CH32V307WCU6,CH32X035F7P6,CH522,CH525,CH527,CH32V203G6U6,CH32V307,CH32F203C8U6,CH32V203C8U6,CH32V203F6P6,CH521,CH32V203RBT6,CH578,CH32V303VCT6,CH577,CH579,CH32F203CBT6,CH32V103C8T6,CH32V003A4M6,CH32X033F8P6,CH32L103F7P6,CH32F203C6T6,CH571,CH573,CH32F103C8T6,CH32V103C8U6,CH32X035G8U6,CH32V003F4U6,CH32L103K8U6,CH32L103C8T6,CH32F208RBT6,CH32V208,CH581,CH583,CH32F203VCT6,CH32F208WBU6,CH582,CH32X035R8T6,CH32V208CBU6,CH555,CH558,CH557,CH559,CH32V303CBT6,CH32L103F8U6,CH32V305FBP6,CH32V203K6T6,CH32V203C6T6,CH552,CH32V307VCT6,CH551,CH554,CH567,CH569,CH568,CH32L103G8R6,CH32F207VCT6,CH561,CH563,CH32V203F8P6
【视频】沁恒微144MHz高主频MCU，千兆以太网MAC（内置10M PHY），8路UART/USB2.0/BLE
型号- CH578,CH555,CH577,CH558,CH557,CH579,CH559,CH571,CH552,CH551,CH573,CH532,CH554,CH531,CH545,CH567,CH32F207,CH522,CH525,CH547,CH32F205,CH569,CH546,CH568,CH527,CH549,CH32F203,CH548,CH32F103,CH32F208,CH32V208,CH32V307,CH581,CH32V305,CH561,CH583,CH32V303,CH582,CH541,CH563,CH32V103,CH32V203,CH540,CH521,CH543,CH565,CH542
脱机烧录器使用手册
型号- CH57X,CH578,CH577,CH555,CH55X,CH558,CH32V,CH579,CH559,CH32 系列,CH32F,CH57X 系列,CH32FX,CH571F,CH32,CH552,CH551,CH573,CH554,CH58X,CH547,CH56X,CH546,CH32V 系列,CH549,CH54X,CH548,CH32F103,CH32F 系列
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