ATmega644P 带有64K系统内可编程Flash存储器
| Flash (Kbytes) |
64 |
| EEPROM (Kbytes) |
2 |
| SRAM (Bytes) |
4096 |
| Max I/O Pins |
32 |
| 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 |
32 |
| Hardware Multiplier |
Yes |
| Interrupts |
31 |
| On Chip Oscillator |
Yes |
| PWM Channels |
6 |
| RTC |
Yes |
| Self Program Memory |
Yes |
| SPI |
1+USART |
| TWI |
Yes |
| UART |
2 |
| Watchdog |
Yes |
Pb-Free Packages |
MLF (VQFN) 44
PDIP 40
TQFP 44 |
64-Kbyte self-programming Flash Program Memory, 4-Kbyte SRAM, 2-KByte EEPROM, 8 Channel 10-bit A/D-converter. JTAG interface for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 Volt Operation.
The ATmega164P/324P/644P 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
ATmega164P/324P/644P achieves throughputs approaching 1 MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
ATmega644P 特性
- 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
- High Endurance Non-volatile Memory segments
– 16/32/64K Bytes of In-System Self-programmable Flash program memory
– 512B/1K/2K Bytes EEPROM
– 1/2/4K Bytes Internal SRAM
– 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
- 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 Mode
– 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, 44-pad VQFN/QFN/MLF (ATmega164P/324P/644P)
– 44-pad DRQFN (ATmega164P)
– 49-ball VFBGA (ATmega164P/324P)
- 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: 0.4 mA
– Power-down Mode: 0.1μA
– Power-save Mode: 0.6μA (Including 32 kHz RTC)
ATmega644P 订购型号
ATmega644P 应用技术支持与电子电路设计开发资源下载
- ATMEL 爱特梅尔AVR 微控制器ATmega644P 数据手册DataSheet 下载. PDF
- Atmel 爱特梅尔AVR 微控制器简介.PDF (编号:Tech AVR 000)MLF 32
- 面向新手的AVR 开发工具,及基本知识.PDF(编号:Tech AVR 001)
- 使用AVR 定时/计数器的PWM功能设计要点 .PDF
- AVR指令集（版本：0856G–AVR–07/08）
- AVR 微控制器汽车应用解决方案 . pdf
- AVR 微控制器选型指南. pdf
- ATMEL 爱特梅尔公司全线产品目录. pdf
