ATMEGA32U4-AU vs ATMEGA32A-AU 对比
详细并排对比 ATMEGA32U4-AU 出自 Microchip Technology 和 ATMEGA32A-AU 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
ATMEGA32U4-AU - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip
ATMEGA32U4-AU ✓ 量产中Microchip Technology
ATMEGA32A-AU - 8-bit AVR MCU, 32KB Flash, 16MHz, TQFP-44 | Microchip
ATMEGA32A-AU ✓ 量产中规格对比
| 参数 | ATMEGA32U4-AU | ATMEGA32A-AU |
|---|---|---|
| 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） | $4.25 | $2.95 |
| Core Architecture | 8-bit AVR RISC | AVR RISC 8-bit |
| CPU Speed | 16 MHz | — |
| Throughput | 16 MIPS at 16 MHz | — |
| Flash Program Memory | 32 KB (16K x 16) | — |
| SRAM | 2.5 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| 电源电压 | 2.7 V to 5.5 V (verified 4.5-5.5V in some sources; full range per datasheet) | — |
| I/O Pins | 32 programmable | 32 programmable |
| USB | USB 2.0 full-speed / low-speed device, on-chip transceiver | — |
| ADC | 12-channel, 10-bit | 8-channel, 10-bit |
| Timers | 4 (2x 8-bit, 2x 16-bit) | — |
| Communication | USB, USART, SPI, TWI (I2C) | — |
| Debug Interface | JTAG / debugWIRE | JTAG (IEEE 1149.1 compliant) |
| 封装 | 44-pin TQFP (10x10 mm, 0.8 mm pitch) | 44-pin TQFP (10x10 mm, 0.8 mm pitch) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40 C to +85 C (industrial) | -40C to +85C (industrial) |
| Instruction Set | 131 instructions, mostly single-cycle | — |
| RoHS 状态 | Compliant | Compliant (Green) |
| Manufacturer | — | Microchip Technology (formerly Atmel) |
| Series | — | AVR ATmega |
| 最大时钟频率 | — | 16 MHz |
| MIPS Throughput | — | 16 MIPS at 16 MHz |
| Program Memory (Flash) | — | 32 KB |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| Timers/Counters | — | Two 8-bit and one 16-bit |
| Communication Peripherals | — | USART, SPI, TWI (I2C) |