ATTINY85-20PI Atmel, ATTINY85-20PI Datasheet - Page 229
![IC AVR MCU 8K 20MHZ 8DIP](/photos/6/50/65033/313-8-dip_sml.jpg)
ATTINY85-20PI
Manufacturer Part Number
ATTINY85-20PI
Description
IC AVR MCU 8K 20MHZ 8DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY85-20PI
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Table of Contents
2586M–AVR–07/10
1
2
3
4
5
6
7
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 4
About ......................................................................................................... 6
AVR CPU Core .......................................................................................... 7
AVR Memories ........................................................................................ 15
System Clock and Clock Options ......................................................... 23
Power Management and Sleep Modes ................................................. 35
1.1
2.1
3.1
3.2
3.3
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
5.1
5.2
5.3
5.4
5.5
6.1
6.2
6.3
6.4
6.5
7.1
Pin Descriptions .................................................................................................2
Block Diagram ...................................................................................................4
Resources .........................................................................................................6
Code Examples .................................................................................................6
Data Retention ...................................................................................................6
Introduction ........................................................................................................7
Architectural Overview .......................................................................................7
ALU – Arithmetic Logic Unit ...............................................................................8
Status Register ..................................................................................................8
General Purpose Register File ........................................................................10
Stack Pointer ...................................................................................................11
Instruction Execution Timing ...........................................................................12
Reset and Interrupt Handling ...........................................................................12
In-System Re-programmable Flash Program Memory ....................................15
SRAM Data Memory ........................................................................................15
EEPROM Data Memory ..................................................................................16
I/O Memory ......................................................................................................20
Register Description ........................................................................................20
Clock Systems and their Distribution ...............................................................23
Clock Sources .................................................................................................25
System Clock Prescaler ..................................................................................31
Clock Output Buffer .........................................................................................32
Register Description ........................................................................................32
Sleep Modes ....................................................................................................35
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