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ATtiny44 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 20 PDIP 14 SOIC (150mil) 14

ATtiny44 特性

• ATtiny44 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
• Non-Volatile Program and Data Memories
  – 2/4/8K Bytes of In-System Programmable Program Memory Flash
• Endurance: 10,000 Write/Erase Cycles
  – 128/256/512 Bytes of In-System Programmable EEPROM
• Endurance: 100,000 Write/Erase Cycles
  – 128/256/512 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
  – 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 for ATtiny24V/44V/84V
  – 2.7 – 5.5V for ATtiny24/44/84
• Speed Grade
  – ATtiny24V/44V/84V
• 0 – 4 MHz @ 1.8 – 5.5V
• 0 – 10 MHz @ 2.7 – 5.5V
  – ATtiny24/44/84
• 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 (1 MHz System Clock): 300 μA @ 1.8V
  – Power-down Mode: 0.1 μA @ 1.8V

ATtiny44 概述

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 - 5.5 V operation。

• 8KB version: ATtiny84
• 4KB version: ATtiny44
• 2KB version: ATtiny24

The ATtiny24/44/84 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 ATtiny24/44/84 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed。

ATtiny44 相关订购信息

Speed (MHz)	Power Supply	Ordering Code	Package	Operational Range
10	1.8 - 5.5V	ATtiny44V-10SSU ATtiny44V-10PU ATtiny44V-10MU	14S1 14P3 20M1	Industrial (-40°C to 85°C)
20	2.7 - 5.5V	ATtiny44-20SSU ATtiny44-20PU ATtiny44-20MU	14S1 14P3 20M1	Industrial (-40°C to 85°C)

ATtiny44 应用技术支持与电子电路设计开发资源下载

1. ATtiny24 数据手册DataSheet 在线下载（简洁版）
2. ATtiny24 数据手册DataSheet 在线下载（完整版）
3. Atmel 爱特梅尔AVR 微控制器简介.PDF
4. 面向新手的AVR开发工具,及基本知识.PDF
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