ATMEGA644P-A15MZ vs ATMEGA644P-20MQ 对比
详细并排对比 ATMEGA644P-A15MZ 出自 Microchip Technology 和 ATMEGA644P-20MQ 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-A15MZ - 64KB AVR MCU, 16MHz, VQFN-44 | Microchip
ATMEGA644P-A15MZ NrndMicrochip Technology
ATMEGA644P-20MQ - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644P-20MQ Nrnd规格对比
| 参数 | ATMEGA644P-A15MZ | ATMEGA644P-20MQ |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 不推荐新设计 | 不推荐新设计 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $2.00 | $2.48 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Max Clock Speed | 16 MHz | — |
| Flash Memory | 64 KB (32K x 16) | — |
| SRAM | 4 KB | 4 KB (4,096 bytes) |
| EEPROM | 2 KB | 2 KB (2,048 bytes) |
| 电源电压 | 4.5 V to 5.5 V | — |
| Number of GPIO | 32 | — |
| USART | 2 | — |
| ADC Resolution | 10-bit | — |
| ADC Channels | 8 | — |
| Connectivity | I2C (TWI), SPI, UART/USART | — |
| Timers | 3 timers/counters with compare modes and PWM | — |
| Throughput | 16 MIPS at 16 MHz | Up to 20 MIPS (1 MIPS per MHz) |
| 封装 | 44-VQFN (7x7 mm) | 44-VQFN (7x7 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| Qualification | AEC-Q100 (automotive) | — |
| 工作温度范围 | [DATA_NEEDED: Operating Temperature Range] | — |
| Packaging | Tray | Tape & Reel (TR) |
| Core Architecture | — | AVR 8-bit RISC |
| CPU Speed | — | 20 MHz |
| Flash Program Memory | — | 64 KB (32K x 16) |
| Operating Voltage | — | 5 V |
| Number of I/O | — | 32 |
| Digital Communication Peripherals | — | 2 UART |
| Oscillator Type | — | Internal |
| Instructions | — | 131 powerful instructions, most single-cycle |
| Temperature Grade | — | Industrial, extended temperature |
| Technology Feature | — | picoPower low-power, green/RoHS |
| Programming | — | ICSP via 2 I/O pins + reset, MPLAB SNAP compatible |
| Lifecycle | — | Mature; NRND - replaced by ATmega644PA |