Datasheet 搜索 > 8位微控制器 > ATMEL（爱特美尔） > ATMEGA32U4-MU 数据手册 > ATMEGA32U4-MU 用户编程技术手册 1/433 页
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ATMEGA32U4-MU 用户编程技术手册 - ATMEL（爱特美尔）
制造商:
ATMEL（爱特美尔）
分类:
8位微控制器
封装:
QFN-44
描述:
ATmega32U4 8 位 megaAVR 微控制器Atmel ATmega32U4 微控制器是基于 AVR 增强型 RISC 体系结构的 8 位 megaAVR 设备。 通过在单个时钟周期内执行强大的指令，ATmega32U4 可实现接近 1 MIPS/MHz 的吞吐量，在功耗和速度之间达到平衡。 ATMega32U4 具有 USB 2.0 设备模块，使其成为需要 USB 连接的应用的理想方案。 还集成了 JTAG 接口，用于芯片调试。### 微控制器功能16 MHz 最大工作频率 16 MHz 时高达 16 MIPS 32 KB 闪存 1024 B EEPROM 2.5 KB SRAM 135 指令 - 大多数单时钟周期执行 32 通用寄存器 26 GPIO 开机重置和可编程掉电检测 内部 8 MHz 校准振荡器 内部时钟预标度和实时时钟切换 外部和内部中断源 六个省电睡眠模式 内部和外部中断 完全静态操作 片载 2 周期倍增器 ### 通信功能USB 2.0 全速/低速设备模块 JTAG（IEEE 1149.1 标准）接口 可编程串行 USART，带硬件流量控制 主/从 SPI 串行接口 字节式 2 线串行接口 ### 外围功能芯片 PLL 用于 USB 和高速计时器 10 位模拟到数字转换器 (ADC) - 12 通道 一个 10 位高速计时器/计数器，带 PLL (64 MHz) 和比较模式 一个 8 位计时器/计数器,，带独立预标度和比较模式 两个 16 位计时器/计数器，带独立预标度、比较和捕获模式 四个 8位 PWM 通道 四个 PWM 通道，带 2 位到 16 位的可编程分辨率 6 个 PWM 通道，用于高速操作，带 2 位到 11 位的可编程分辨率 输出比较调制器 可编程监看计时器，带独立芯片振荡器 芯片模拟比较器 通过引脚变化实现中断和唤醒 片上温度传感器 ### AVR 微控制器，Atmel展开
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引脚图在P3P5P67P146P147P151P152P155P156Hot
典型应用电路图在P254
原理图在P4P9P65P91P92P94P95P109P114P115P117P119
型号编码规则在P415P416P424
封装信息在P417
应用领域在P38P49P62P63P330P334P346P347P433
电气规格在P253
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ATMEGA32U4-MU数据手册
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Features
• High Performance, Low Power AVR
®
8-Bit Microcontroller
• Advanced RISC Architecture
– 135 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 16 MIPS Throughput at 16 MHz
– On-Chip 2-cycle Multiplier
• Non-volatile Program and Data Memories
– 16/32K Bytes of In-System Self-Programmable Flash (ATmega16U4/ATmega32U4)
– 1.25/2.5K Bytes Internal SRAM (ATmega16U4/ATmega32U4)
– 512Bytes/1K Bytes Internal EEPROM (ATmega16U4/ATmega32U4)
– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85C/ 100 years at 25C
(1)
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
All supplied parts are preprogramed with a default USB bootloader
– Programming Lock for Software Security
• JTAG (IEEE std. 1149.1 compliant) Interface
– Boundary-scan Capabilities According to the JTAG Standard
– Extensive On-chip Debug Support
– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
• USB 2.0 Full-speed/Low Speed Device Module with Interrupt on Transfer Completion
– Complies fully with Universal Serial Bus Specification Rev 2.0
– Supports data transfer rates up to 12 Mbit/s and 1.5 Mbit/s
– Endpoint 0 for Control Transfers: up to 64-bytes
– 6 Programmable Endpoints with IN or Out Directions and with Bulk, Interrupt or
Isochronous Transfers
– Configurable Endpoints size up to 256 bytes in double bank mode
– Fully independent 832 bytes USB DPRAM for endpoint memory allocation
– Suspend/Resume Interrupts
– CPU Reset possible on USB Bus Reset detection
– 48 MHz from PLL for Full-speed Bus Operation
– USB Bus Connection/Disconnection on Microcontroller Request
– Crystal-less ooperation for Low Speed mode
• Peripheral Features
– On-chip PLL for USB and High Speed Timer: 32 up to 96 MHz operation
– One 8-bit Timer/Counter with Separate Prescaler and Compare Mode
– Two 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode
– One 10-bit High-Speed Timer/Counter with PLL (64 MHz) and Compare Mode
– Four 8-bit PWM Channels
– Four PWM Channels with Programmable Resolution from 2 to 16 Bits
– Six PWM Channels for High Speed Operation, with Programmable Resolution from
2 to 11 Bits
– Output Compare Modulator
– 12-channels, 10-bit ADC (features Differential Channels with Programmable Gain)
– Programmable Serial USART with Hardware Flow Control
– Master/Slave SPI Serial Interface
8-bit
Microcontroller
with
16/32K Bytes of
ISP Flash
and USB
Controller
ATmega16U4
ATmega32U4
Preliminary
7766G–AVR–02/2014
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