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ATtiny44A 带有4K系统内可编程Flash存储器

Flash (Kbytes)	4
EEPROM (Kbytes)	0.25
SRAM (Bytes)	256
Max I/O Pins	12
F.max (MHz)	20
Vcc (V)	1.8-5.5
16-bit Timers	1
8-bit Timer	1
PWM (channels)	4
SPI	USI
TWI	USI
ISP	Yes
10-bit A/D (Channe	8
Analog Comparator	Yes
Brown Out Detector	Yes
Watchdog	Yes
On Chip Oscillator	Yes
Interrupts	17
Ext Interrupts	12
Self Program Memor	Yes
Pb-Free Packages	MLF (VQFN) 20  MLF (WQFN) 20  PDIP 14  SOIC (150mil) 14

4K Bytes of In-System Self-Programmable Flash, 256 Bytes In-System Programmable EEPROM, 256 Bytes Internal SRAM. 8-bit and 16-bit timer/counters with PWM, 10-bit ADC, USI-Universal Serial Interface, On-chip Temperature Sensor. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5V operation.

• 4KB version: ATtiny44A
• 2KB version: ATtiny24A

ATtiny24A/44A are low-power CMOS 8-bit microcontrollers based on the AVR enhanced RISC
architecture. By executing powerful instructions in a single clock cycle, the ATtiny24A/44A
achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize
power consumption versus processing speed.

ATtiny44A 特性

• • High Performance, Low Power AVR® 8-Bit Microcontroller
  • Advanced RISC Architecture
  – 120 Powerful Instructions – Most Single Clock Cycle Execution
  – 32 x 8 General Purpose Working Registers
  – Fully Static Operation
  • High Endurance, Non-Volatile Memory Segments
  – 2K/4K Bytes of In-System, Self-Programmable Flash Program Memory
  • Endurance: 10,000 Write/Erase Cycles
  – 128/256 Bytes of In-System Programmable EEPROM
  • Endurance: 100,000 Write/Erase Cycles
  – 128/256 Bytes of Internal SRAM
  – Data retention: 20 years at 85°C / 100 years at 25°C
  – Programming Lock for Self-Programming Flash EEPROM Data Security
  • Peripheral Features
  – One 8-Bit and One 16-Bit Timer/Counter with Two PWM Channels, Each
  – 10-bit ADC
  • 8 Single-Ended Channels
  • 12 Differential ADC Channel Pairs with Programmable Gain (1x / 20x)
  – Programmable Watchdog Timer with Separate On-chip Oscillator
  – On-Chip Analog Comparator
  – Universal Serial Interface
  • Special Microcontroller Features
  – debugWIRE On-chip Debug System
  – In-System Programmable via SPI Port
  – Internal and External Interrupt Sources
  • Pin Change Interrupt on 12 Pins
  – Low Power Idle, ADC Noise Reduction, Standby and Power-Down Modes
  – Enhanced Power-on Reset Circuit
  – Programmable Brown-Out Detection Circuit with Software Disable Function
  – Internal Calibrated Oscillator
  – On-Chip Temperature Sensor
  • I/O and Packages
  – Available in 20-Pin QFN/MLF 14-Pin SOIC and PDIP
  – Twelve Programmable I/O Lines
  • Operating Voltage:
  – 1.8 – 5.5V
  • Speed Grade:
  – 0 – 4 MHz @ 1.8 – 5.5V
  – 0 – 10 MHz @ 2.7 – 5.5V
  – 0 – 20 MHz @ 4.5 – 5.5V
  • Industrial Temperature Range: -40°C to +85°C
  • Low Power Consumption
  – Active Mode:
  • 210 μA at 1.8V and 1MHz
  – Idle Mode:
  • 33 μA at 1.8V and 1MHz
  – Power-Down Mode:
  • 0.1 μA at 1.8V and 25°C
  8-bit
  Microcontroller
  with 2K/4K
  Bytes In-System
  Programmable
  Flash
  ATtiny24A
  (Preliminary)
  ATtiny44A

ATtiny44A 订购型号

Speed (MHz)	Power Supply	Ordering Code	Package	Operational Range
20	1.8 - 5.5V	ATtiny44A-SSU ATtiny44A-PU ATtiny44A-MU ATtiny44A-MMH	14S1 14P3 20M1 20M2	Industrial (-40°C to 85°C)

ATtiny44A 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ATtiny44A 数据手册DataSheet 下载. PDF (简洁版)
2. ATMEL 爱特梅尔AVR 微控制器ATtiny44A 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