Atmel AVR ATtiny15L User Manual

1
Features
• High-performance, Low-power AVR
®
8-bit Microcontroller
• Advanced RISC Architecture
– 90 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
• Non-volatile Program and Data Memories
– 1K Byte In-System Programmable Flash Program Memory
Endurance: 1,000 Write/Erase Cycles
– 64 Bytes EEPROM
Endurance: 100,000 Write/Erase Cycles
– Programming Lock for Flash Program Data Security
• Peripheral Features
– Interrupt and Wake-up on Pin Change
– Two 8-bit Timer/Counters with Separate Prescalers
– One 150 kHz, 8-bit High-speed PWM Output
– 4-channel 10-bit ADC
One Differential Voltage Input with Optional Gain of 20x
– On-chip Analog Comparator
– Programmable Watchdog Timer with On-chip Oscillator
• Special Microcontroller Features
– In-System Programmable via SPI Port
– Enhanced Power-on Reset Circuit
– Programmable Brown-out Detection Circuit
– Internal, Calibrated 1.6 MHz Tunable Oscillator
– Internal 25.6 MHz Clock Generator for Timer/Counter
– External and Internal Interrupt Sources
– Low-power Idle and Power-down Modes
• Power Consumption at 1.6 MHz, 3V, 25°C
– Active: 3.0 mA
– Idle Mode: 1.0 mA
– Power-down: < 1 µA
• I/O and Packages
– 8-lead PDIP and 8-lead SOIC: 6 Programmable I/O Lines
• Operating Voltages
– 2.7V - 5.5V
• Internal 1.6 MHz System Clock
Pin Configuration
1
2
3
4
8
7
6
5
(
RESET/ADC0) PB5
(ADC3) PB4
(ADC2) PB3
GND
VCC
PB2 (ADC1/SCK/T0/INT
0)
PB1 (AIN1/MISO/OC1A)
PB0 (AIN0/AREF/MOSI)
PDIP/SOIC
8-bit
Microcontroller
with 1K Byte
Flash
ATtiny15L
Not recommended for new
design
Rev. 1187H–AVR–09/07

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