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ATtiny45

Availability: Advance Info

Deviceimage

Summary

4K Bytes of In-System Self-Programmable Flash, 256 Bytes In-System Programmable EEPROM, 256 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. 2.7 - 5.5 V operation. Also available in 1.8 V version. 8KB version: ATtiny85 2KB version: ATtiny25

Crossrelation

  • pin and feature compatible with tiny25, more memory.
  • pin and feature compatible with tiny85, less memory.

Overview features

Flash EEPROM SRAM Speed Volts
4kB 256B 256B 0 - 20MHz 2.7 - 5.5V

Files

Packages

General package info

  8-pin SOIC 8-pin PDIP 20-lead MLF
Package Lead Code 8 8 20
Carrier Type TUBE TUBE  
Max Package Height 2.15   .8
Body Thickness 1.82 3.30 3.30
Body Width 5.30 7.62 4.00
Body Length   9.27 4.00
JEDEC MSL 2    
Units per Carrier 95 50 0
Carriers per Bag 100 40 0
Units per Bag 9500 2000 0
Quantity per Reel 2000 0 0
Tape Pitch 12    
Tape Width 16    
Downloadable Files pdf Package Drawing
pdf Tube Tray Drawing
pdf Carrier Tape Drawing
pdf Reel Drawing
pdf Package Drawing
pdf Tube Tray Drawing
pdf Datasheet
pdf Package Drawing
Other features Tools
Memory
Flash Memory 4 kB
EEPROM Data Memory 256 B
SRAM Data Memory 256 B
General Purpose Registers (Accumulators) 32
MCU Specific
Clock Frequency 0 - 20 MHz
Supply Voltage 2.7 - 5.5 V
Sleep Modes 3
I/O Pins 6
On Chip Oscillator Yes
Interrupts 15
Interrupts, External pins 7
Interrupt or Wake-up on Pin Change Yes
Brown-out Detection Yes
Power-on Reset Yes
Fully Static Operation Yes
DebugWIRE On-chip debug system Yes
Timers / Counters
Timer/Counters (8-bit) 2
Watchdog Timer with On-chip Oscillator Yes
Pulse Width Modulator 2 ch
Analog I/O
Analog Comparator Yes
Analog-to-Digital Converter (10-bit) 4 ch
Programming Modes
In-System Programming via SPI Port Yes
High Voltage Parallel Programming (12V) Yes
Self-Programming via on-chip Boot Program Yes
Serial I/O
2-wire Serial Interface (I2C compatible) Yes
Universal Serial Interface Yes
Fuses
DebugWIRE Enable Yes