HomedatasheetATMEGA8

ATMEGA8 Datasheet

8-bit AVR with 8K Bytes In-System Programmable Flash
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Description

The ATmega8 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8 achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed. ATMEGA8 Features • High-performance, Low-power AVR® 8-bit Microcontroller• Advanced RISC Architecture– 130 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• Nonvolatile Program and Data Memories– 8K Bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles– Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation– 512 Bytes EEPROM Endurance: 100,000 Write/Erase Cycles– 1K Byte Internal SRAM– 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 CaptureMode– Real Time Counter with Separate Oscillator– Three PWM Channels– 8-channel ADC in TQFP and MLF package Six Channels 10-bit Accuracy Two Channels 8-bit Accuracy– 6-channel ADC in PDIP package Four Channels 10-bit Accuracy Two Channels 8-bit Accuracy– 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• I/O and Packages– 23 Programmable I/O Lines– 28-lead PDIP, 32-lead TQFP, and 32-pad MLF• Operating Voltages– 2.7 - 5.5V (ATmega8L)– 4.5 - 5.5V (ATmega8)• Speed Grades– 0 - 8 MHz (ATmega8L)– 0 - 16 MHz (ATmega8)• Power Consumption at 4 Mhz, 3V, 25°C– Active: 3.6 mA– Idle Mode: 1.0 mA– Power-down Mode: 0.5 μA
Features

Parameters

[{"Name":"Operating Voltage","Value":"4.5 to 5.5V"},{"Name":"Speed Grades","Value":"0 to16 MHz"},{"Name":"Power Consumption at 4 Mhz, 3V, 25°C Active","Value":"3.6 mA"},{"Name":"Power Consumption at 4 Mhz, 3V, 25°C Idle Mode","Value":"1.0 mA"},{"Name":"Power Consumption at 4 Mhz, 3V, 25°C Power-down Mode","Value":"0.5 μA"},{"Name":" Flash Endurance","Value":"10,000 Write/Erase Cycles"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

MICROCHIP TECHNOLOGY

Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Arizona, Microchip offers outstanding technical support along with dependable delivery and quality.

Microchip Technology Inc. has acquired Atmel.


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