Overview
The ATMEGA8L-8PU is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. It is designed to optimize power consumption versus processing speed, achieving throughputs approaching 1 MIPS per MHz. This microcontroller is part of the ATmega series by Microchip Technology and is known for its high-performance and low-power capabilities.
Key Specifications
| Specification | Details |
|---|---|
| Microcontroller Type | 8-bit AVR RISC Microcontroller |
| Flash Memory | 8 Kbytes In-System Self-programmable Flash |
| EEPROM | 512 Bytes |
| SRAM | 1 Kbyte Internal SRAM |
| Write/Erase Cycles | 10,000 Flash / 100,000 EEPROM |
| Data Retention | 20 years at 85°C / 100 years at 25°C |
| Operating Voltages | 2.7 - 5.5V (ATmega8L) |
| Speed Grades | 0 - 8 MHz (ATmega8L) |
| Power Consumption at 4 MHz, 3V, 25°C | Active: 3.6 mA, Idle Mode: 1.0 mA, Power-down Mode: 0.5 µA |
| Number of I/O Lines | 23 Programmable I/O Lines |
| Package Types | 28-lead PDIP, 32-lead TQFP, and 32-pad QFN/MLF |
| ADC Channels | 6-channel ADC in PDIP package, 8-channel ADC in TQFP and QFN/MLF package |
| PWM Channels | Three PWM Channels |
Key Features
- High-performance, Low-power AVR 8-bit Microcontroller
- Advanced RISC Architecture with 130 powerful instructions, most executed in a single clock cycle
- 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
- In-System Programming by On-chip Boot Program with True Read-While-Write Operation
- Programming Lock for Software Security
- Peripheral Features:
- Two 8-bit Timer/Counters with Separate Prescaler, one Compare Mode
- One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
- Real-Time Counter with Separate Oscillator
- Three PWM Channels
- 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
- Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby
Applications
- Power Management
- Communications & Networking
- Consumer Electronics
Q & A
- What is the ATMEGA8L-8PU microcontroller based on?
The ATMEGA8L-8PU is based on the AVR RISC architecture.
- What is the flash memory capacity of the ATMEGA8L-8PU?
The ATMEGA8L-8PU has 8 Kbytes of In-System Self-programmable Flash memory.
- What are the operating voltage ranges for the ATMEGA8L-8PU?
The operating voltage range for the ATMEGA8L-8PU is 2.7 - 5.5V.
- What is the maximum speed grade for the ATMEGA8L-8PU?
The maximum speed grade for the ATMEGA8L-8PU is 0 - 8 MHz.
- How many programmable I/O lines does the ATMEGA8L-8PU have?
The ATMEGA8L-8PU has 23 programmable I/O lines.
- What types of packages are available for the ATMEGA8L-8PU?
The ATMEGA8L-8PU is available in 28-lead PDIP, 32-lead TQFP, and 32-pad QFN/MLF packages.
- Does the ATMEGA8L-8PU support ADC and PWM channels?
Yes, the ATMEGA8L-8PU supports 6-channel or 8-channel ADC and three PWM channels depending on the package type.
- What are the power consumption characteristics of the ATMEGA8L-8PU at 4 MHz, 3V, and 25°C?
The power consumption is 3.6 mA in active mode, 1.0 mA in idle mode, and 0.5 µA in power-down mode.
- Does the ATMEGA8L-8PU have built-in serial communication interfaces?
Yes, it includes byte-oriented Two-wire Serial Interface, Programmable Serial USART, and Master/Slave SPI Serial Interface.
- What are the sleep modes available on the ATMEGA8L-8PU?
The ATMEGA8L-8PU has five sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby.
