ATmega328P 带有32K系统内可编程Flash存储器

Flash (Kbytes)	32
EEPROM (Kbytes)	1
SRAM (Bytes)	2048
Max I/O Pins	23
F.max (MHz)	20
Vcc (V)	1.8-5.5
10-bit A/D Channels	8
Analog Comparator	Yes
16-bit Timers	1
8-bit Timer	2
Brown Out Detector	Yes
Ext Interrupts	26
Hardware Multiplier	Yes
Interrupts	26
ISP	Yes
On Chip Oscillator	Yes
PWM Channels	6
RTC	Yes
Self Program Memory	Yes
SPI	1+USART
TWI	Yes
UART	1
Watchdog	Yes
Pb-Free Packages	MLF (VQFN) 32 PDIP 28 TQFP 32

32K Byte self-programming Flash Program Memory, 1K Byte SRAM, 512 Bytes EEPROM, 8 Channel 10-bit A/D-converter(TQFP/MLF). debugWIRE On-chip Debug System. Up to 20 MIPS throughput at 20 MHz.

• 4KB 系统内可编程Flash存储器：ATmega48P
• 8KB 系统内可编程Flash存储器：ATmega88P
• 16KB 系统内可编程Flash存储器：ATmega168P
• 32KB 系统内可编程Flash存储器：ATmega328P

The ATmega48P/ATmega88P/ATmega168P/ATmega328P is a low-power CMOS 8-bit microcontroller based on the AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATmega48P/ATmega88P/ATmega168P/ATmega328P achieves throughputs approaching 1 MIPS per MHz allowing the
system designer to optimize power consumption versus processing speed.

ATmega328P 产品特性

• High Performance, Low Power AVR(R) 8-Bit Microcontroller
• Advanced RISC Architecture
  – 131 Powerful Instructions – Most Single Clock Cycle Execution
  – 32 x 8 General Purpose Working Registers
  – Fully Static Operation
  – Up to 20 MIPS Throughput at 20 MHz
  – On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory Segments
  – 4/8/16/32K Bytes of In-System Self-Programmable Flash progam memory
  (ATmega48P/88P/168P/328P)
  – 256/512/512/1K Bytes EEPROM (ATmega48P/88P/168P/328P)
  – 512/1K/1K/2K Bytes Internal SRAM (ATmega48P/88P/168P/328P)
  – Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
  – Data retention: 20 years at 85°C/100 years at 25°C(1)
  – Optional Boot Code Section with Independent Lock Bits
  In-System Programming by On-chip Boot Program
  True Read-While-Write Operation
  – Programming Lock for Software Security
• Peripheral Features
  – Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
  – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture
  Mode
  – Real Time Counter with Separate Oscillator
  – Six PWM Channels
  – 8-channel 10-bit ADC in TQFP and QFN/MLF package
  Temperature Measurement
  – 6-channel 10-bit ADC in PDIP Package
  Temperature Measurement
  – Programmable Serial USART
  – Master/Slave SPI Serial Interface
  – Byte-oriented 2-wire Serial Interface (Philips I2C compatible)
  – Programmable Watchdog Timer with Separate On-chip Oscillator
  – On-chip Analog Comparator
  – Interrupt and Wake-up on Pin Change
• Special Microcontroller Features
  – Power-on Reset and Programmable Brown-out Detection
  – Internal Calibrated Oscillator
  – External and Internal Interrupt Sources
  – Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby,
  and Extended Standby
• I/O and Packages
  – 23 Programmable I/O Lines
  – 28-pin PDIP, 32-lead TQFP, 28-pad QFN/MLF and 32-pad QFN/MLF
• Operating Voltage:
  – 1.8 - 5.5V for ATmega48P/88P/168PV
  – 2.7 - 5.5V for ATmega48P/88P/168P
  – 1.8 - 5.5V for ATmega328P
• Temperature Range:
  – -40°C to 85°C
• Speed Grade:
  – ATmega48P/88P/168PV: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V
  – ATmega48P/88P/168P: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
  – ATmega328P: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
• Low Power Consumption at 1 MHz, 1.8V, 25°C for ATmega48P/88P/168P:
  – Active Mode: 0.3 mA
  – Power-down Mode: 0.1 μA
  – Power-save Mode: 0.8 μA (Including 32 kHz RTC)

ATmega328P 订购型号

速度 (MHz)	所需电源	产品号	封装	工作范围
20	1.8 - 5.5V	ATmega328P-20AU ATmega328P-20MU ATmega328P-20PU	32A 32M1-A 28P3	Industrial(-40°C － 85°C)

ATmega328P 应用技术支持与电子电路设计开发资源下载

1. ATMEL 爱特梅尔AVR 微控制器ATmega328P 数据手册DataSheet 下载. PDF（简洁版）
2. ATMEL 爱特梅尔AVR 微控制器ATmega328P 数据手册DataSheet 下载. PDF（完整版）
3. Atmel 爱特梅尔AVR 微控制器简介.PDF (编号:Tech AVR 000)MLF 32
4. 面向新手的AVR 开发工具,及基本知识.PDF(编号:Tech AVR 001)
5. 使用AVR 定时/计数器的PWM功能设计要点 .PDF
6. AVR指令集（版本：0856G–AVR–07/08）
7. AVR 微控制器汽车应用解决方案 . pdf
8. AVR 微控制器选型指南. pdf
9. ATMEL 爱特梅尔公司全线产品目录. pdf