Atmel AVR ATtiny15L User Manual

3
ATtiny15L
1187H–AVR–09/07
Block Diagram Figure 1. The ATtiny15L Block Diagram
PROGRAM
COUNTER
INTERNAL
OSCILLA
TOR
WATCHDOG
TIMER
STACK
POINTER
PROGRAM
FLASH
HARDWARE
STACK
MCU CONTROL
REGISTER
GENERAL
PURPOSE
REGISTERS
INSTRUCTION
REGISTER
TIMER/
COUNTER0
INSTRUCTION
DECODER
DATA DIR.
REG.PORT B
DATA REGISTER
PORT B
PROGRAMMING
LOGIC
TIMING AND
CONTROL
TIMER/
COUNTER1
MCU STATUS
REGISTER
STATUS
REGISTER
ALU
PORT B DRIVERS
PB0-PB5
VCC
GND
CONTROL
LINES
+
-
ANALOG
COMPARATOR
8-BIT DATA BUS
Z
ISP MODULE
INTERRUPT
UNIT
DATA
EEPROM
INTERNAL
OSCILLA
TOR
TUNABLE
ANALOG MUX ADC

Atmel AVR ATtiny15L Specifications

General

Architecture	8-bit AVR
Flash Memory	1 KB
SRAM	64 Bytes
I/O Pins	6
ADC Channels	4
Temperature Range	-40°C to +85°C
Operating Voltage	2.7V - 6.0V
Timers	1 x 8-bit
Package	8-pin PDIP, SOIC

Summary

Features

Non-volatile Program and Data Memories

1K Byte Flash Program Memory and 64 Bytes EEPROM.

Description

Block Diagram

Pin Descriptions

ATtiny15L Architectural Overview

The General Purpose Register File

Details the 32 general purpose working registers and their access.

The ALU - Arithmetic Logic Unit

Explains the Arithmetic Logic Unit's operation and integration.

The Flash Program Memory

Describes the 1K byte Flash memory, its organization and endurance.

Reset and Interrupt Handling

Interrupt Handling

External Interrupt

Pin Change Interrupt

The MCU Control Register – MCUCR

Sleep Modes

Defines Idle, ADC Noise Reduction, and Power-down modes.

Tuneable Internal RC Oscillator

Timer/Counters

The Timer/Counter0 Prescaler

Details prescaler options for Timer/Counter0.

The Timer/Counter1 Prescaler

Details prescaler options for Timer/Counter1.

The 8-bit Timer/Counter0

Explains Timer/Counter0 operation, clock sources, and control.

The 8-bit Timer/Counter1

Describes Timer/Counter1, including PWM capabilities.

The Watchdog Timer

EEPROM Read/Write Access

Preventing EEPROM Corruption

Techniques to avoid data corruption during low voltage or reset.

The Analog Comparator

The Analog-to-Digital Converter, Analog Multiplexer, and Gain Stages

I/O Port B

Memory Programming

Electrical Characteristics

Absolute Maximum Ratings

Specifies limits beyond which damage may occur.

DC Characteristics

Typical Characteristics

ATtiny15L Register Summary

ATtiny15L Instruction Set Summary

Ordering Information

Packaging Information