Description

The ATmega32L-8AU is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. It is part of the microcontroller product category and is known for its high-performance and low-power consumption. With its advanced RISC architecture and powerful instructions that can be executed in a single clock cycle, the ATmega32L-8AU achieves throughputs approaching 1 MIPS per MHz, allowing system designers to optimize power consumption versus processing speed.

Specifications and features

• High-performance, Low-power AVR® 8-bit Microcontroller
• Advanced RISC Architecture
• 131 Powerful Instructions - Most Single-clock Cycle Execution
• 32 x 8 General Purpose Working Registers
• Fully Static Operation
• Up to 16 MIPS Throughput at 16 MHz
• On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory segments
• 32K Bytes of In-System Self-programmable Flash program memory
• 1024 Bytes EEPROM
• 2K Byte Internal SRAM
• Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
• Data retention: 20 years at 85°C/100 years at 25°C(1)
• Optional Boot Code Section with Independent Lock Bits
• In-System Programming by On-chip Boot Program
• True Read-While-Write Operation
• Programming Lock for Software Security
• JTAG (IEEE std. 1149.1 Compliant) Interface
• Boundary-scan Capabilities According to the JTAG Standard
• Extensive On-chip Debug Support
• Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
• Peripheral Features
• Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
• One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
• Real Time Counter with Separate Oscillator
• Four PWM Channels
• 8-channel, 10-bit ADC
• Byte-oriented Two-wire Serial Interface
• Programmable Serial USART
• Master/Slave SPI Serial Interface
• Programmable Watchdog Timer with Separate On-chip Oscillator
• On-chip Analog Comparator
• Special Microcontroller Features
• Power-on Reset and Programmable Brown-out Detection
• Internal Calibrated RC Oscillator
• External and Internal Interrupt Sources
• Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby
• I/O and Packages
• 32 Programmable I/O Lines
• 40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF
• Operating Voltages: 2.7 - 5.5V for ATmega32L, 4.5 - 5.5V for ATmega32
• Speed Grades: 0 - 8 MHz for ATmega32L, 0 - 16 MHz for ATmega32
• Power Consumption at 1 MHz, 3V, 25°C for ATmega32L: Active - 1.1 mA, Idle Mode - 0.35 mA, Power-down Mode - < 1 µA

Application Scenarios

The ATmega32L-8AU microcontroller is commonly used in various electronic applications that require high performance and low power consumption. Some common application scenarios include:

• Embedded Systems
• Automotive Electronics
• Industrial Automation
• Consumer Electronics
• Wireless Communication

Comparison

• High-performance microcontroller with low-power consumption
• Advanced RISC architecture for efficient processing
• Large memory capacity for program storage
• Wide range of peripherals for versatile applications
• Support for in-system programming
• JTAG interface for boundary-scan capabilities and debug support
• Various sleep modes for power-saving operation

• Restricted operating voltage range
• Limited number of I/O lines