ATmega1281 带有128K系统内可编程Flash存储器
Flash (Kbytes) |
128 |
EEPROM (Kbytes) |
4 |
SRAM (Bytes) |
8192 |
Max I/O Pins |
54 |
F.max (MHz) |
16 |
Vcc (V) |
1.8-5.5 |
16-bit Timers |
4 |
8-bit Timer |
2 |
PWM (channels) |
9 |
RTC |
Yes |
SPI |
1+USART |
UART |
2 |
TWI |
Yes |
ISP |
Yes |
10-bit A/D (Channe) |
8 |
Analog Comparator |
Yes |
Brown Out Detector |
Yes |
Watchdog |
Yes |
On Chip Oscillator |
Yes |
Hardware Multiplie |
Yes |
Interrupts |
48 |
Ext Interrupts |
17 |
Self Program Memor |
Yes |
Packages |
TQFP 64
MLF 64 |
128-Kbyte self-programming Flash Program Memory, 8-Kbyte SRAM, 4-KByte EEPROM, 8 Channel 10-bit A/D-converter. JTAG interface for on-chip-debug. Up to 16 MIPS throughput at 16 MHz. 1.8 - 5.5 Volt Operation.
The ATmega640/1280/1281/2560/2561 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 ATmega640/1280/1281/2560/2561 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
ATmega1281 特性
- 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
- High Endurance Non-volatile Memory Segments
– 64K/128K/256K Bytes of In-System Self-Programmable Flash
– 4K Bytes EEPROM
– 8K Bytes Internal SRAM
– Write/Erase Cycles:10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85°C/ 100 years at 25°C
– 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
Endurance: Up to 64K Bytes Optional External Memory Space
- 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 Prescaler and Compare Mode
– Four 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode
– Real Time Counter with Separate Oscillator
– Four 8-bit PWM Channels
– Six/Twelve PWM Channels with Programmable Resolution from 2 to 16 Bits
(ATmega1281/2561, ATmega640/1280/2560)
– Output Compare Modulator
– 8/16-channel, 10-bit ADC (ATmega1281/2561, ATmega640/1280/2560)
– Two/Four Programmable Serial USART (ATmega1281/2561,ATmega640/1280/2560)
– Master/Slave SPI Serial Interface
– Byte Oriented 2-wire 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 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
– 54/86 Programmable I/O Lines (ATmega1281/2561, ATmega640/1280/2560)
– 64-pad QFN/MLF, 64-lead TQFP (ATmega1281/2561)
– 100-lead TQFP, 100-ball CBGA (ATmega640/1280/2560)
– RoHS/Fully Green
- Temperature Range:-40°C to 85°C Industrial
- Ultra-Low Power Consumption
– Active Mode: 1 MHz, 1.8V: 500 μA
– Power-down Mode: 0.1 μA at 1.8V
- Speed Grade:
– ATmega640V/ATmega1280V/ATmega1281V:
0 - 4 MHz @ 1.8 - 5.5V, 0 - 8 MHz @ 2.7 - 5.5V
– ATmega2560V/ATmega2561V:
0 - 2 MHz @ 1.8 - 5.5V, 0 - 8 MHz @ 2.7 - 5.5V
– ATmega640/ATmega1280/ATmega1281:
0 - 8 MHz @ 2.7 - 5.5V, 0 - 16 MHz @ 4.5 - 5.5V
– ATmega2560/ATmega2561:0 - 16 MHz @ 4.5 - 5.5V
ATmega1281 订购型号
ATmega1281 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ATmega1280 数据手册DataSheet 下载. PDF(完整版)
- ATMEL 爱特梅尔AVR 微控制器ATmega1280 数据手册DataSheet 下载 .PDF(简洁版)
- 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