ATMEGA64L-8MQ vs ATMEGA644P-20MQ 对比
详细并排对比 ATMEGA64L-8MQ 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-20MQ - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644P-20MQ Nrnd规格对比
| 参数 | ATMEGA64L-8MQ | 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） | $7.95 | $2.48 |
| Core | AVR 8-bit RISC | — |
| Core Size | 8-Bit | — |
| Max Clock Frequency | 8 MHz | — |
| Flash Memory Size | 64KB (32K x 16) | — |
| SRAM Size | 4KB | — |
| EEPROM Size | 2KB | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| MIPS Throughput | up to 8 MIPS (approx. 1 MIPS/MHz) | — |
| Instruction Set | 130 powerful instructions, most single-cycle | — |
| General Purpose Registers | 32 x 8 | — |
| 封装 | 64-VFQFN (9x9 mm), exposed pad | 44-VQFN (7x7 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| Temperature Grade | Extended industrial | Industrial, extended temperature |
| 引脚数 | 64 | — |
| Terminal Form | No-lead (QCCN) | — |
| RoHS / Green Status | GREEN, RoHS-compliant (Q suffix) | — |
| Packaging | Tape & Reel (R suffix) | Tape & Reel (TR) |
| Lifecycle | Mature product; not recommended for new designs; replaced by ATmega64A | Mature; NRND - replaced by ATmega644PA |
| Core Architecture | — | AVR 8-bit RISC |
| CPU Speed | — | 20 MHz |
| Throughput | — | Up to 20 MIPS (1 MIPS per MHz) |
| Flash Program Memory | — | 64 KB (32K x 16) |
| SRAM | — | 4 KB (4,096 bytes) |
| EEPROM | — | 2 KB (2,048 bytes) |
| Operating Voltage | — | 5 V |
| Number of I/O | — | 32 |
| Digital Communication Peripherals | — | 2 UART |
| Oscillator Type | — | Internal |
| Instructions | — | 131 powerful instructions, most single-cycle |
| Technology Feature | — | picoPower low-power, green/RoHS |
| Programming | — | ICSP via 2 I/O pins + reset, MPLAB SNAP compatible |