ATMEGA644P-20MU vs ATMEGA164P-20MU 对比
详细并排对比 ATMEGA644P-20MU 出自 Microchip Technology 和 ATMEGA164P-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
ATMEGA164P-20MU - 8-bit AVR MCU 20MHz 16KB Flash | Microchip
ATMEGA164P-20MU ✓ 量产中规格对比
| 参数 | ATMEGA644P-20MU | ATMEGA164P-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 | $2.98 |
| Core Architecture | AVR 8-bit enhanced RISC | — |
| 最大时钟频率 | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) | — |
| SRAM | 4 KB | — |
| EEPROM | 2 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 | 8-channel 10-bit |
| Interfaces | SPI, TWI (I2C-compatible), USART, JTAG | — |
| 封装 | 44-VQFN (7x7 mm) exposed pad | 44-VQFN (7x7 mm) with Exposed Pad |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | Industrial range | [DATA_NEEDED: operating temperature range] |
| 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 |
| Program Memory Size | — | 16 KB (8K x 16) FLASH |
| EEPROM Size | — | 512 B |
| RAM Size | — | 1 KB SRAM |
| Supply Voltage Range | — | 2.7 V to 5.5 V |
| Number of I/O | — | 32 |
| Timers/Counters | — | 3 (with compare modes and PWM) |
| Communication Interfaces | — | 2x USART, TWI (I2C), SPI |
| RTC | — | Yes (real-time counter) |
| Instructions | — | 133 (advanced RISC, mostly single-cycle) |
| Low Power Technology | — | picoPower |
| Programming | — | ISP (In-System Programming), read-while-write |