ATMEGA644P-20PQ vs ATMEGA644PA-ANR 对比
详细并排对比 ATMEGA644P-20PQ 出自 Microchip Technology 和 ATMEGA644PA-ANR 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-20PQ - 8-bit AVR MCU 20MHz 64KB Flash DIP-40 | Microchip
ATMEGA644P-20PQ NrndMicrochip Technology
ATMEGA644PA-ANR - 8-bit AVR MCU 64KB Flash 44-TQFP | Microchip
ATMEGA644PA-ANR ✓ 量产中规格对比
| 参数 | ATMEGA644P-20PQ | ATMEGA644PA-ANR |
|---|---|---|
| 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） | $7.40 | $3.35 |
| Core Architecture | AVR 8-bit RISC | — |
| 最大时钟频率 | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) | — |
| SRAM | 4 KB (4K x 8) | — |
| EEPROM | 2 KB | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| Operating Voltage (20MHz) | 4.5 V to 5.5 V | — |
| Number of I/O | 32 | 32 |
| 封装 | 40-PDIP | — |
| Oscillator Type | Internal RC | Internal |
| USARTs | 2 | — |
| Instruction Set | 131 instructions, mostly single-cycle | — |
| Processing Throughput | Up to 20 MIPS at 20 MHz (approx. 1 MIPS per MHz) | — |
| Temperature Range | Extended temperature (industrial) | — |
| Programming Features | In-System Programmable Flash, self-programming boot section, JTAG | — |
| Power Modes | Idle, Power-down, Power-save, Standby, Extended Standby (picoPower) | — |
| 安装类型 | Through Hole | Surface Mount |
| RoHS 状态 | Green (per FindIC listing) | Green (RoHS compliant per FindIC listing) |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 16 MHz |
| Program Memory Size | — | 64 KB (32K x 16) |
| Program Memory Type | — | FLASH |
| EEPROM Size | — | 2 KB |
| RAM Size | — | 4 KB |
| Peripherals | — | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | — | I2C, SPI, USART |
| ADC Resolution | — | 10-bit, 8 channels |
| Architecture Features | — | 131 instructions, most single-cycle, 2-cycle on-chip multiplier |
| 封装 / 外壳 | — | 44-TQFP (10x10 mm) |
| 工作温度 | — | -40C to +105C |
| Packaging | — | Tape & Reel (TR) |
| Technology | — | picoPower |
| Voltage - Supply | — | [DATA_NEEDED: Voltage - Supply] |