ATtiny25 带有2K系统内可编程Flash存储器

Flash (Kbytes)	2
EEPROM (Kbytes)	0.125
SRAM (Bytes)	128
Max I/O Pins	6
F.max (MHz)	20
Vcc (V)	1.8-5.5
8-bit Timer	2
PWM (channels)	4
SPI	USI
TWI	USI
ISP	Yes
10-bit A/D (Channe	4
Analog Comparator	Yes
Brown Out Detector	Yes
Watchdog	Yes
On Chip Oscillator	Yes
Interrupts	15
Ext Interrupts	7
Self Program Memor	Yes
Pb-Free Packages	PDIP 8 MLF (WQFN) 20 SOIC (150mil) 8 SOIC (208mil) 8

2K Bytes of In-System Self-Programmable Flash, 128 Bytes In-System Programmable EEPROM, 128 Bytes Internal SRAM. Two 8-bit timer/counters with PWM and prescaler, 10-bit ADC, USI-Universal Serial Interface. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.

• 8KB 自编程闪存容量：ATtiny85
• 4KB 自编程闪存容量：ATtiny45
• 2KB 自编程闪存容量：ATtiny25

The ATtiny25/45/85 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 ATtiny25/45/85 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

ATtiny25 特性

• High Performance, Low Power AVR(R) 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
  – 4K Byte of In-System Programmable Program Memory Flash (ATtiny25)
• Endurance: 10,000 Write/Erase Cycles
  – 256 Bytes In-System Programmable EEPROM (ATtiny25)
• Endurance: 100,000 Write/Erase Cycles
  – 256 Bytes Internal SRAM (ATtiny25)
  – Programming Lock for Self-Programming Flash Program and EEPROM Data Security
• Peripheral Features
  – 8-bit Timer/Counter with Prescaler and Two PWM Channels
  – 8-bit High Speed Timer/Counter with Separate Prescaler
• 2 High Frequency PWM Outputs with Separate Output Compare Registers
• Programmable Dead Time Generator
  – USI – Universal Serial Interface with Start Condition Detector
  – 10-bit ADC
• 4 Single Ended Channels
• 2 Differential ADC Channel Pairs with Programmable Gain (1x, 20x)Temperature Measurement
  – Programmable Watchdog Timer with Separate On-chip Oscillator
  – On-chip Analog Comparator
• Special Microcontroller Features
  – debugWIRE On-chip Debug System
  – In-System Programmable via SPI Port
  – External and Internal Interrupt Sources
  – Low Power Idle, ADC Noise Reduction, and Power-down Modes
  – Enhanced Power-on Reset Circuit
  – Programmable Brown-out Detection Circuit
  – Internal Calibrated Oscillator
• I/O and Packages
  – Six Programmable I/O Lines
  – 8-pin PDIP, 8-pin SOIC and 20-pad QFN/MLF
• Operating Voltage
  – 1.8 - 5.5V for ATtiny25V
  – 2.7 - 5.5V for ATtiny25
• Speed Grade
  – ATtiny25V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V
  – ATtiny25: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
• Industrial Temperature Range
• Low Power Consumption
  – Active Mode:
• 1 MHz, 1.8V: 300 μA
  – Power-down Mode:
• 0.1μA at 1.8V

ATtiny25 相关订购型号

Speed (MHz)	Power Supply	Ordering Code	Package	Operational Range
10	1.8 - 5.5V	ATtiny25V-10PU ATtiny25V-10SU ATtiny25V-10SSU ATtiny25V-10MU	8P3 8S2 S8S1 20M1	Industrial (-40°C to 85°C)
20	2.7 - 5.5V	ATtiny25-20PU ATtiny25-20SU ATtiny25-20SSU ATtiny25-20MU	8P3 8S2 S8S1 20M1	Industrial (-40°C to 85°C)

ATtiny25 汽车级订购型号

Power Supply	Speed (MHz)	Ordering Code	Package	Operation Range
2.7 - 5.5V	8 - 16	ATtiny25-15ST ATtiny25-15ST1 ATtiny25-15SZ	T5	Automotive (-40°C to +85°C) Automotive (-40°C to +105°C) Automotive (-40°C to 125°C)
2.7 - 5.5V	8 - 16	ATtiny25-15MT ATtiny25-15MT1 ATtiny25-15MZ	PC	Automotive (-40°C to 85°C) Automotive (-40°C to +105°C) Automotive (-40°C to +125°C)

ATtiny25 应用技术支持与电子电路设计开发资源下载

1. ATtiny25 数据手册DataSheet 在线下载（简洁版DataSheet据数手册）
2. ATtiny25 数据手册DataSheet 在线下载（完整版DataSheet据数手册）
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
10. 8-bit Microcontroller Drives Battery-powered Thermostat (Article, 2 pages, updated 1/04)
11. Algorithm Builder for AVR (Article, 2 pages, updated 1/04)
12. Atmel AVR-based Constant Current Supply (Article, 4 pages, updated 1/04)
13. Atmel Motor Driver Solutions (Brochure, 16 pages, revision A, updated 10/08)
14. Heterogeneous Device Networking (Article, 2 pages, updated 1/04)
15. High-level Tool Targeted for AVR Controllers (Article, 2 pages, updated 1/04)
16. Mixed-signal ICs for Body and Powertrain Electronics (Brochure, 20 pages, revision C, updated 07/07)