ATMEGA644P-20AU
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5VATMEGA644P-20AU
8-bit Microcontrollers - MCU AVR 64K FLSH 4K SRAM 2KB EE 20MHZ 5V
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製造商零件號 # : ATMEGA644P-20AU
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包裝/封裝: TQFP-44
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製造商: Microchip Technology
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產品分類 : Microcontrollers
品質保證
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ATMEGA644P-20AU 數據表
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目前的價格方案正在編制中。請聯絡我們的客戶服務團隊獲取最新的價格資訊。感謝您的理解和支援!
詳細說明
Moreover, the microcontroller features a wide operating voltage range of 1.8V to 5.5V, making it suitable for a diverse range of low-power and battery-powered applications. Furthermore, built-in protections such as brown-out detection, watchdog timer, and power-on reset circuitry ensure the reliability and stability of the system, making the ATMEGA644P-20AU a dependable choice for embedded projects
主要特徵
- High-performance, Low-power AVR® 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
- Nonvolatile Program and Data Memories
- – 16/32/64K Bytes of In-System Self-Programmable Flash
- Endurance: 10,000 Write/Erase Cycles
- – Optional Boot Code Section with Independent Lock Bits
- In-System Programming by On-chip Boot Program
- True Read-While-Write Operation
- – 512B/1K/2K Bytes EEPROM
- Endurance: 100,000 Write/Erase Cycles
- – 1/2/4K Bytes Internal SRAM
- – 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
- Peripheral Features
- – Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
- – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture
- – Real Time Counter with Separate Oscillator
- – Six PWM Channels
- – 8-channel, 10-bit ADC
- Differential mode with selectable gain at 1x, 10x or 200x
- – Byte-oriented Two-wire Serial Interface
- – Two Programmable Serial USART
- – Master/Slave SPI Serial Interface
- – 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 RC 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
- – 32 Programmable I/O Lines
- – 40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF
- Operating Voltages
- – 1.8 - 5.5V for ATmega164P/324P/644PV
- – 2.7 - 5.5V for ATmega164P/324P/644P
- Speed Grades
- – ATmega164P/324P/644PV: 0 - 4MHz @ 1.8 - 5.5V, 0 - 10MHz @ 2.7 - 5.5V
- – ATmega164P/324P/644P: 0 - 10MHz @ 2.7 - 5.5V, 0 - 20MHz @ 4.5 - 5.5V
- Power Consumption at 1 MHz, 1.8V, 25°C for ATmega164P/324P/644P
- – Active: 338/398/TBD µA
- – Power-down Mode:0.035 /0.027/TBD µA
- – Power-save Mode:0.5 /0.5/TBD µA (Including 32 kHz RTC)
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Program Memory Size (KB) | 64 | RAM (bytes) | 4096 |
Data EEPROM (bytes) | 2048 | Pin Count ! | 44 |
Operation Voltage Max.(V) | 5.5 | Operation Voltage Min.(V) | 1.8 |
Timers | 2 x 8-bit - 1 x 16-bit | Max ADC Resolution (bits) | 10 |
ADC Channels | 8 | Zero Cross Detect | No |
Number of Comparators | 1 | SPI | 3 -SPI |
I2C | 1 -I2C | Stand alone PWM | 6 |
Low Power | Yes | Numerically Controlled Oscillator (NCO) | 0 |
Data Signal Modulator (DSM) | 0 |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is ATMEGA644P-20AU?
The ATMEGA644P-20AU is a high-performance, low-power 8-bit microcontroller designed by Microchip Technology (formerly Atmel). It is part of the Atmel AVR family and is ideal for a wide range of applications including industrial control systems, consumer electronics, and automotive control systems.
How Does ATMEGA644P-20AU Work?
The ATMEGA644P-20AU works as a versatile 8-bit microcontroller with a high level of integration. It features a rich set of peripherals including analog-to-digital converters, serial communication interfaces, and timers. The microcontroller executes instructions from its program memory and interacts with external peripherals to perform various tasks in the target application.
How Many Pins does ATMEGA644P-20AU have and What are the Functions of the Pinout Configuration?
The ATMEGA644P-20AU comes in a 44-pin TQFP (Thin Quad Flat Package) package. The pinout configuration includes:
- VCC, GND: Power supply and ground pins, respectively.
- PORTx: General-purpose I/O pins for external interfacing.
- ADCx: Analog-to-digital converter input pins.
- TIMx: Timer/Counter control pins.
- INTx: External interrupt input pins.
- TWI, SPI, USART: Serial communication interface pins.
- RESET: Reset input pin.
- XTAL1, XTAL2: Crystal oscillator input and output pins for clock generation.
What are the Pros and Cons of ATMEGA644P-20AU?
Pros:
- High Performance: Offers high computing power for embedded system applications.
- Rich Peripheral Set: Includes a variety of peripherals for versatile system integration.
- Low Power Consumption: Operates at low power for energy-efficient designs.
- Industry-standard Architecture: Based on the widely-used AVR architecture, providing a rich ecosystem of development tools and resources.
Cons:
- Bit-width Limitation: Limited to 8-bit computing, may not be suitable for applications requiring higher computational precision.
- Cost: Higher cost compared to lower-end microcontrollers with fewer features.
- Complexity: Requires understanding of microcontroller architecture and peripherals for effective utilization.
Are There Any Equivalents/Alternatives to ATMEGA644P-20AU for Recommendation?
- The ATMEGA1284P-PU from Microchip Technology is a higher-end alternative with increased flash memory and pins.
- Alternatives to the ATMEGA644P-20AU include the PIC18F4620 from Microchip Technology and the STM32F103C8T6 from STMicroelectronics.
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