ATMEGA644A-AU vs ATMEGA644P-20AU Comparação
Comparação detalhada lado a lado de ATMEGA644A-AU por Microchip Technology e ATMEGA644P-20AU por Microchip Technology. Compare especificações principais, parâmetros elétricos, encapsulamento, status do ciclo de vida, preços e disponibilidade para determinar o melhor componente para os requisitos do seu projeto.
Microchip Technology
ATMEGA644A-AU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644A-AU ✓ AtivoMicrochip Technology
ATMEGA644P-20AU - 8-Bit AVR MCU 20MHz 64KB Flash TQFP-44 | Microchip
ATMEGA644P-20AU ✓ AtivoComparação de especificações
| Parâmetro | ATMEGA644A-AU | ATMEGA644P-20AU |
|---|---|---|
| Marca | Microchip Technology | Microchip Technology |
| Categoria | Microcontrollers | Microcontrollers |
| Status do ciclo de vida | Ativo | Ativo |
| Status do estoque | In Stock | In Stock |
| Preço unitário (USD) | $5,40 | $3,95 |
| Core Architecture | 8-bit AVR enhanced RISC | — |
| Program Memory Size | 64 KB Flash (32K x 16) | 64 KB (32K x 16) FLASH |
| Program Memory Type | ISP FLASH with Read-While-Write | — |
| EEPROM | 2 KB | — |
| SRAM | 4 KB | — |
| Maximum CPU Speed | 20 MHz (20 MIPS) | — |
| Supply Voltage Range | 1.8 V to 5.5 V | 4.5 V to 5.5 V (20 MHz grade) |
| General Purpose I/O | 32 lines | — |
| Working Registers | 32 general purpose registers | — |
| USART | 2 | — |
| Timer/Counters | 3 (with compare modes and PWM) | — |
| ADC | 8-channel, 10-bit | — |
| Serial Interfaces | TWI (2-wire, I2C-compatible), SPI | — |
| Real Time Counter | Yes (RTC) | — |
| Encapsulamento | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) |
| Tipo de montagem | Surface Mount | Surface Mount |
| Temperatura de operação | -40C to +85C (Industrial) | -40C to +85C (industrial) |
| Device Series | ATmega644A | — |
| Core | — | AVR 8-bit RISC |
| Core Size | — | 8-Bit |
| Frequência máxima de clock | — | 20 MHz |
| Data RAM Size | — | 4 KB SRAM |
| EEPROM Size | — | 2 KB |
| Number of USARTs | — | 2 |
| ADC Resolution | — | 10-bit |
| Peripherals | — | SPI, TWI (I2C), PWM timers, WDT, BOD |
| I/O Count | — | 32 |
| Throughput | — | Up to 20 MIPS at 20 MHz (approx. 1 MIPS/MHz) |
| Programming | — | In-System Programmable (ISP) via SPI |
| Status RoHS | — | Compliant (green package) |