ATMEGA644P-20MU vs ATMEGA324P-20MU 对比
详细并排对比 ATMEGA644P-20MU 出自 Microchip Technology 和 ATMEGA324P-20MU 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
ATMEGA644P-20MU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644P-20MU NrndMicrochip Technology
ATMEGA324P-20MU - 8-bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA324P-20MU ✓ 量产中规格对比
| 参数 | ATMEGA644P-20MU | ATMEGA324P-20MU |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 不推荐新设计 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $5.02 | $3.80 |
| Core Architecture | AVR 8-bit enhanced RISC | — |
| 最大时钟频率 | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) | 32 KB (16K x 16) |
| SRAM | 4 KB | 2 KB |
| EEPROM | 2 KB | 1 KB |
| 电源电压 | 4.5 V to 5.5 V (at 20 MHz) | — |
| USART Count | 2 | — |
| ADC | 10-bit, up to 8 channels | — |
| Interfaces | SPI, TWI (I2C-compatible), USART, JTAG | — |
| 封装 | 44-VQFN (7x7 mm) exposed pad | 44-VQFN (7x7 mm), exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | Industrial range | -40C to +85C |
| MIPS Rating | Up to 20 MIPS (1 MIPS/MHz) | — |
| RoHS 状态 | Green / RoHS compliant | — |
| Product Status | Mature product; not recommended for new designs, replaced by ATmega644PA | — |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 20 MHz |
| Supply Voltage Range | — | 4.5 V to 5.5 V |
| General Purpose I/O | — | 32 |
| Timers/Counters | — | 3 (with compare modes and PWM) |
| USART | — | 2 |
| ADC Resolution | — | 10-bit |
| Connectivity | — | I2C (TWI), SPI, UART/USART |
| Programmer Support | — | MPLAB SNAP (ICSP, in-circuit debug) |
| Technology | — | picoPower, AVR RISC, 131 instructions |