Customization: | Available |
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Conductive Type: | Unipolar Integrated Circuit |
Integration: | ULSI |
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ATMEGA8A-PU: MCU 8-bit ATmega AVR RISC 8KB Flash 3.3V/5V 28-Pin PDIP
Package: DIP-28
Mfr. Part#: ATMEGA8A-PU
Mfr.: MICROCHIP
Datasheet: (e-mail or chat us for PDF file)
ROHS Status:
Quality: 100% Original
Warranty: 180 days
The Microchip AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. The ATmega8A provides the following features: 8K bytes of In-System Programmable Flash with ReadWhile- Write capabilities, 512 bytes of EEPROM, 1K byte of SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible Timer/Counters with compare modes, internal and external interrupts, a serial programmable USART, one byte oriented Two-wire Serial Interface, a 6- channel ADC (eight channels in TQFP and QFN/MLF packages) with 10-bit accuracy, a programmable Watchdog Timer with Internal Oscillator, an SPI serial port, and five software selectable power saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, one SPI port, and interrupt system to continue functioning. The Power-down mode saves the register contents but freezes the Oscillator, disabling all other chip functions until the next Interrupt or Hardware Reset. In Power-save mode, the asynchronous timer continues to run, allowing the user to maintain a timer base while the rest of the device is sleeping. Microchip offers the QTouch library for embedding capacitive touch buttons, sliders and wheels functionality into AVR microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully debounced reporting of touch keys and includes Adjacent Key Suppression (AKS ) technology for unambiguous detection of key events. The easy-to-use QTouch Composer allows you to explore, develop and debug your own touch applications.
Core Processor | AVR |
Core Size | 8-Bit |
Speed | 16MHz |
Connectivity | I²C, SPI, UART/USART |
Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
Number of I/O | 23 |
Program Memory Size | 8KB (4K x 16) |
Program Memory Type | FLASH |
EEPROM Size | 512 x 8 |
RAM Size | 1K x 8 |
Voltage - Supply (Vcc/Vdd) | 2.7 V ~ 5.5 V |
Data Converters | A/D 6x10b |
Oscillator Type | Internal |
Operating Temperature | -40°C ~ 85°C (TA) |
Package / Case | 28-DIP (0.300", 7.62mm) |
Supplier Device Package | 28-PDIP |
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