ATMEGA644A-MUR vs ATMEGA164A-MU 对比
详细并排对比 ATMEGA644A-MUR 出自 Microchip Technology 和 ATMEGA164A-MU 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
ATMEGA644A-MUR - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644A-MUR ✓ 量产中Microchip Technology
ATMEGA164A-MU - 8-bit AVR MCU 16KB Flash 20MHz VQFN-44 | Microchip
ATMEGA164A-MU ✓ 量产中规格对比
| 参数 | ATMEGA644A-MUR | ATMEGA164A-MU |
|---|---|---|
| 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） | $4.31 | $3.01 |
| Core Architecture | AVR enhanced RISC, 8-bit | AVR 8-bit RISC |
| Flash Memory | 64 KB (32K x 16) ISP Flash with read-while-write | — |
| SRAM | 4 KB | 1 KB |
| EEPROM | 2 KB | 512 B |
| 最大时钟频率 | 20 MHz | 20 MHz |
| CPU Throughput | Up to 20 MIPS at 20 MHz (1 MIPS per MHz) | — |
| General Purpose I/O | 32 I/O lines | 32 I/O lines |
| Working Registers | 32 x 8-bit general purpose | — |
| USART Channels | 2 | — |
| Timers/Counters | 3 flexible timers with compare modes and PWM | — |
| Serial Interfaces | TWI (I2C-compatible), SPI, 2x USART | — |
| Real-Time Counter | Yes | — |
| 封装 | 44-VQFN (7x7 mm) exposed pad | 44-VQFN (7x7 mm) with exposed pad |
| 工作温度 | Industrial, -40C to +85C | -40C to +85C (industrial) |
| Supply Voltage Options | 2.5 V / 3.3 V / 5 V | — |
| Supply Voltage Range | [DATA_NEEDED: exact VCC min/max per datasheet table] | 2.7 V to 5.5 V |
| On-Chip Debug | JTAG | — |
| RoHS 状态 | Compliant | — |
| 安装类型 | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | — |
| Program Memory (FLASH) | — | 16 KB (8K x 16) ISP |
| Throughput | — | Up to 20 MIPS (approx. 1 MIPS per MHz) |
| Instruction Set | — | 133 powerful instructions, most single-cycle |
| General Purpose Registers | — | 32 |
| ADC | — | 10-bit ADC (per family datasheet) |
| Peripherals | — | Real-time counter, timers/PWM, WDT, brown-out detection |
| Programming Interface | — | ISP (In-System Programmable), read-while-write |
| Life Cycle Stage | — | Active |