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ATMEGA324P-20MU 数据手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
VQFN-44
描述:
8 位 PicoPower megaAVR 系列微控制器此系列 megaAVR 微控制器具有 picoPower 技术 — 非常适合节能。 它们提供大量程序和数据内存，性能高达 20 MIPS。 **picoPower megaAVR 微控制器的特色和优点** 片上闪存 SRAM 内部 EEPROM SPI TWI (I²C) USART、USB、CAN 和 LIN 接口 监控计时器 精密振荡器 GPIO 引脚 ADC DAC 内置温度传感器 内部参考电压 掉电检测器
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3D模型
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页面导航:
引脚图在P2P6P74P93P111P139Hot
原理图在P4P9P72P93P94P96P97P112P117P118P120P122
封装尺寸在P423P424P425
型号编码规则在P420P421P422P428
封装信息在P423P428
应用领域在P41P50P62P65P276P280P293P294
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ATMEGA324P-20MU数据手册
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5
8011N–AVR–01/10
ATmega164P/324P/644P
The ATmega164P/324P/644P provides the following features: 16/32/64K bytes of In-System
Programmable Flash with Read-While-Write capabilities, 512B/1K/2K bytes EEPROM, 1/2/4K
bytes SRAM, 32 general purpose I/O lines, 32 general purpose working registers, Real Time
Counter (RTC), three flexible Timer/Counters with compare modes and PWM, 2 USARTs, a byte
oriented 2-wire Serial Interface, a 8-channel, 10-bit ADC with optional differential input stage
with programmable gain, programmable Watchdog Timer with Internal Oscillator, an SPI serial
port, IEEE std. 1149.1 compliant JTAG test interface, also used for accessing the On-chip
Debug system and programming and six software selectable power saving modes. The Idle
mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system
to continue functioning. The Power-down mode saves the register contents but freezes the
Oscillator, disabling all other chip functions until the next interrupt or Hardware Reset. In Power-
save mode, the asynchronous timer continues to run, allowing the user to maintain a timer base
while the rest of the device is sleeping. The ADC Noise Reduction mode stops the CPU and all
I/O modules except Asynchronous Timer and ADC, to minimize switching noise during ADC
conversions. In Standby mode, the Crystal/Resonator Oscillator is running while the rest of the
device is sleeping. This allows very fast start-up combined with low power consumption. In
Extended Standby mode, both the main Oscillator and the Asynchronous Timer continue to run.
The device is manufactured using Atmel’s high-density nonvolatile memory technology. The On-
chip ISP Flash allows the program memory to be reprogrammed in-system through an SPI serial
interface, by a conventional nonvolatile memory programmer, or by an On-chip Boot program
running on the AVR core. The boot program can use any interface to download the application
program in the application Flash memory. Software in the Boot Flash section will continue to run
while the Application Flash section is updated, providing true Read-While-Write operation. By
combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip,
the Atmel ATmega164P/324P/644P is a powerful microcontroller that provides a highly flexible
and cost effective solution to many embedded control applications.
The ATmega164P/324P/644P AVR is supported with a full suite of program and system devel-
opment tools including: C compilers, macro assemblers, program debugger/simulators, in-circuit
emulators, and evaluation kits.
2.2 Comparison Between ATmega164P, ATmega324P and ATmega644P
Table 2-1. Differences between ATmega164P and ATmega644P
Device Flash EEPROM RAM
ATmega164P 16 Kbyte 512 Bytes 1 Kbyte
ATmega324P 32 Kbyte 1 Kbyte 2 Kbyte
ATmega644P 64 Kbyte 2 Kbyte 4 Kbyte
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