ATMEGA640-16AUR vs ATMEGA2561-16AUR 对比
详细并排对比 ATMEGA640-16AUR 出自 Microchip Technology 和 ATMEGA2561-16AUR 出自 Microchip Technology。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Microchip Technology
ATMEGA640-16AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-100 | Microchip
ATMEGA640-16AUR ✓ 量产中Microchip Technology
ATMEGA2561-16AUR - 8-bit AVR MCU 256KB 16MHz | Microchip
ATMEGA2561-16AUR ✓ 量产中规格对比
| 参数 | ATMEGA640-16AUR | ATMEGA2561-16AUR |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $6.20 | $15.98 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory (Flash) | 64 KB (32K x 16) | — |
| SRAM | 8 KB | 8 KB |
| EEPROM | 4 KB | 4 KB |
| Maximum CPU Clock | 16 MHz | — |
| Operating Voltage (Vcc) | 4.5 V to 5.5 V | — |
| General-Purpose I/O Lines | 86 | — |
| General-Purpose Working Registers | 32 | — |
| Timer/Counters | 6 flexible timer/counters with compare/PWM | Six flexible timer/counters with compare modes and PWM |
| ADC | 10-bit, 8/16-channel | 8-channel, 10-bit |
| USART | 2 programmable serial USARTs | Four programmable serial USART |
| SPI | 1 master/slave SPI | — |
| TWI (I2C-compatible) | 1 byte-oriented 2-wire interface | — |
| Analog Comparator | On-chip | On-chip, 1 channel |
| Watchdog Timer | Programmable, with separate on-chip oscillator | Programmable, with separate on-chip oscillator |
| 封装 | 100-pin TQFP (14x14 mm) | 64-TQFP (14 x 14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C (industrial) | -40C to +85C (industrial) |
| In-System Programmable (ISP) | Yes | — |
| RoHS 状态 | Compliant | Compliant |
| Flash Memory | — | 256 KB (128K x 16), ISP programmable |
| Maximum CPU Speed | — | 16 MHz |
| Throughput | — | 16 MIPS at 16 MHz |
| Operating Voltage Range | — | 4.5 V to 5.5 V |
| General Purpose I/O | — | 54 I/O lines |
| Working Registers | — | 32 general purpose registers |
| Serial Interfaces | — | SPI, TWI (I2C-compatible 2-wire) |
| Real-Time Counter | — | Yes, with separate oscillator (TOSC1/TOSC2) |
| Pin Change Interrupt | — | Interrupt and wake-up on pin change |