ATMEGA644P-15AZ vs ATMEGA644P-20AU 对比
详细并排对比 ATMEGA644P-15AZ 出自 Microchip Technology 和 ATMEGA644P-20AU 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-15AZ - 8-bit AVR MCU 64KB 16MHz TQFP-44 | Microchip
ATMEGA644P-15AZ ObsoleteMicrochip Technology
ATMEGA644P-20AU - 8-Bit AVR MCU 20MHz 64KB Flash TQFP-44 | Microchip
ATMEGA644P-20AU ✓ 量产中规格对比
| 参数 | ATMEGA644P-15AZ | ATMEGA644P-20AU |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | Obsolete | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $4.98 | $3.95 |
| Core | AVR 8-bit | AVR 8-bit RISC |
| Core Size | 8-Bit | 8-Bit |
| Speed | 16 MHz | — |
| Program Memory Size | 64 KB (32K x 16) Flash | 64 KB (32K x 16) FLASH |
| RAM Size | 4 KB | — |
| EEPROM Size | 2 KB | 2 KB |
| Number of I/O | 32 | — |
| 封装 / 外壳 | 44-TQFP (10x10 mm) | — |
| Operating Voltage | 4.5 V to 5.5 V (15 MHz speed grade) | — |
| Oscillator Type | Internal | — |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | SPI, TWI (I2C), PWM timers, WDT, BOD |
| Connectivity | I2C, SPI, 2x USART | — |
| ADC | 10-bit, up to 8 channels | — |
| Architecture Features | 131 instructions, most single-cycle, 1 MIPS/MHz | — |
| Technology | picoPower low-power CMOS | — |
| Debug Interface | JTAG (on-chip debug) | — |
| Packaging | Tape & Reel (TR) | — |
| Qualification | Verified during product qualification per AEC-Q100 grade 1 (per datasheet family notes) | — |
| Programmer Compatibility | AVR ISP / STK600 / XPRO toolchain | — |
| 最大时钟频率 | — | 20 MHz |
| Data RAM Size | — | 4 KB SRAM |
| Supply Voltage Range | — | 4.5 V to 5.5 V (20 MHz grade) |
| Number of USARTs | — | 2 |
| ADC Resolution | — | 10-bit |
| I/O Count | — | 32 |
| 封装 | — | 44-TQFP (10x10 mm) |
| 安装类型 | — | Surface Mount |
| 工作温度 | — | -40C to +85C (industrial) |
| Throughput | — | Up to 20 MIPS at 20 MHz (approx. 1 MIPS/MHz) |
| Programming | — | In-System Programmable (ISP) via SPI |
| RoHS 状态 | — | Compliant (green package) |