AT90CAN64-16MU

AT90CAN32/64/128 是一种基于增强型RISC架构的低功耗CMOS 8位微控制器。通过在单个时钟周期内执行强大的指令，AT90CAN32/64/128实现了接近每MHz 1 MIPS的吞吐量，使系统设计者能够优化功耗与处理速度之间的平衡。

AVR内核结合了丰富的指令集和32个通用工作寄存器。所有32个寄存器都直接连接到算术逻辑单元（ALU），允许在一个时钟周期内执行的单条指令中访问两个独立的寄存器。这种结构使得代码更高效，并且比传统的CISC微控制器快十倍。

AT90CAN32/64/128提供了以下特性：具有读写同时功能的32K/64K/128K字节的系统内可编程闪存、1K/2K/4K字节的EEPROM、2K/4K/4K字节的SRAM、53个通用I/O线、32个通用工作寄存器、一个CAN控制器、实时时钟（RTC）、四个带有比较模式和PWM功能的灵活定时器/计数器、两个USART、面向字节的两线串行接口、一个带可选差分输入级和可编程增益的8通道10位ADC、带内部振荡器的可编程看门狗定时器、SPI串行端口、符合IEEE std. 1149.1标准的JTAG测试接口（也用于访问片上调试系统和编程）以及五种软件可选的节能模式。

空闲模式停止CPU运行，但允许SRAM、定时器/计数器、SPI/CAN端口和中断系统继续运行。掉电模式保存寄存器内容，但冻结振荡器，禁用所有其他芯片功能直到下一个中断或硬件复位。在省电模式下，异步定时器继续运行，允许用户在设备其余部分休眠时保持定时基准。ADC降噪模式停止CPU和所有I/O模块（除了异步定时器和ADC）的工作，以减少ADC转换期间的开关噪声。待机模式下，晶体/谐振器振荡器运行，而设备的其余部分处于休眠状态。这允许快速启动的同时保持低功耗。

该设备采用Atmel的高密度非易失性存储技术制造。片上ISP Flash允许通过SPI串行接口、常规非易失性存储器编程器或在AVR核心上运行的片上引导程序对程序存储器进行系统内重新编程。引导程序可以使用任何接口将应用程序下载到应用程序Flash存储器中。当应用程序Flash部分更新时，Boot Flash部分中的软件将继续运行，提供真正的读写同时操作。通过将8位RISC CPU与系统内自编程Flash集成在同一芯片上，Atmel AT90CAN32/64/128是一种功能强大的微控制器，为许多嵌入式控制应用提供了高度灵活且成本效益高的解决方案。

AT90CAN32/64/128 AVR得到了一整套程序和系统开发工具的支持，包括：C编译器、宏汇编器、程序调试器/模拟器、在线仿真器和评估套件。

• High-performance, Low-power AVR 8-bit Microcontroller
• Advanced RISC Architecture 133 Powerful Instructions – Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers + Peripheral Control Registers – Fully Static Operation – Up to 16 MIPS Throughput at 16 MHz On-chip 2-cycle Multiplier
• Non volatile Program and Data Memories – 32K/64K/128K Bytes of In-System Reprogrammable Flash (AT90CAN32/64/128) - Endurance: 10,000 Write/Erase Cycles – Optional Boot Code Section with Independent Lock Bits - Selectable Boot Size: 1K Bytes, 2K Bytes, 4K Bytes or 8K Bytes - In-System Programming by On-Chip Boot Program (CAN, UART, ...) - True Read-While-Write Operation – 1K/2K/4K Bytes EEPROM (Endurance: 100,000 Write/Erase Cycles) (AT90CAN32/64/128) – 2K/4K/4K Bytes Internal SRAM (AT90CAN32/64/128) – Up to 64K Bytes Optional External Memory Space – Programming Lock for Software Security
• JTAG (IEEE std. 1149.1 Compliant) Interface – Boundary-scan Capabilities According to the JTAG Standard – Programming Flash (Hardware ISP), EEPROM, Lock & Fuse Bits – Extensive On-chip Debug Support
• CAN Controller 2.0A & 2.0B - ISO 16845 Certified (1) – 15 Full Message Objects with Separate Identifier Tags and Masks – Transmit, Receive, Automatic Reply and Frame Buffer Receive Modes – 1Mbits/s Maximum Transfer Rate at 8 MHz – Time stamping, TTC & Listening Mode (Spying or Autobaud)
• Peripheral Features – Programmable Watchdog Timer with On-chip Oscillator – 8-bit Synchronous Timer/Counter-0 - 10-bit Prescaler - External Event Counter - Output Compare or 8-bit PWM Output – 8-bit Asynchronous Timer/Counter-2 - 10-bit Prescaler - External Event Counter - Output Compare or 8-Bit PWM Output - 32Khz Oscillator for RTC Operation – Dual 16-bit Synchronous Timer/Counters-1 & 3 - 10-bit Prescaler - Input Capture with Noise Canceler - External Event Counter - 3-Output Compare or 16-Bit PWM Output - Output Compare Modulation – 8-channel, 10-bit SAR ADC - 8 Single-ended Channels - 7 Differential Channels - 2 Differential Channels With Programmable Gain at 1x, 10x, or 200x 一 On-chip Analog Comparator – Byte-oriented Two-wire Serial Interface – Dual Programmable Serial USART – Master/Slave SPI Serial Interface - Programming Flash (Hardware ISP)
• Special Microcontroller Features Power-on Reset and Programmable Brown-out Detection Internal Calibrated RC Oscillator – 8 External Interrupt Sources – 5 Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down & Standby – Software Selectable Clock Frequency – Global Pull-up Disable
• I/O and Packages – 53 Programmable I/O Lines – 64-lead TQFP and 64-lead QFN
• Operating Voltages: 2.7 - 5.5V
• Operating temperature: Industrial (-40°C to +85°C)
• Maximum Frequency: 8 MHz at 2.7V, 16 MHz at 4.5V