ATMEGA8A-AU vs ATMEGA8-16AI 对比
详细并排对比 ATMEGA8A-AU 出自 Microchip Technology 和 ATMEGA8-16AI 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
ATMEGA8A-AU - AVR 8-bit MCU 16MHz 8KB Flash TQFP-32 | Microchip
ATMEGA8A-AU ✓ 量产中规格对比
| 参数 | ATMEGA8A-AU | ATMEGA8-16AI |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 有效 | Obsolete |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $1.31 | $2.46 |
| Core Architecture | 8-bit AVR RISC | — |
| 最大时钟频率 | 16 MHz | 16 MHz |
| Flash Program Memory | 8 KB (4K x 16) | — |
| EEPROM | 512 B | 512 Bytes |
| SRAM | 1 KB | 1 KB |
| I/O Pins | 23 | — |
| Supply Voltage Range | 4.5 V to 5.5 V (at 16 MHz) | — |
| Throughput | Up to 16 MIPS at 16 MHz | Up to 16 MIPS at 16 MHz |
| Instructions | 130 instructions, most single-cycle | — |
| Hardware Multiplier | On-chip 2-cycle multiplier | — |
| ADC | 10-bit, 6 multiplexed channels (8 on TQFP/QFN incl. ADC6/ADC7) | 10-bit, 6 or 8 channels, 15 kSPS |
| Communication Interfaces | 1x USART, SPI, TWI (I2C) | — |
| Timers | 2x 8-bit, 1x 16-bit timer/counter | Two 8-bit, one 16-bit with separate prescaler |
| Analog Comparator | Yes, on-chip | — |
| Flash Endurance | 10,000 write cycles | 10,000 write/erase cycles |
| EEPROM Endurance | 100,000 write cycles | — |
| 封装 | 32-TQFP (7x7 mm, 0.8 mm pitch) | 32-TQFP (7x7 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| Programming / Debug | In-Circuit Serial Programming (ICSP) via SPI, MPLAB SNAP supported | — |
| 生命周期状态 | Active | — |
| Core Processor | — | AVR 8-bit RISC |
| Program Memory Size | — | 8 KB (4K x 16) Flash |
| Program Memory Type | — | In-System Programmable Flash |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| Speed Grade Voltage | — | 16 MHz at 4.5 V to 5.5 V |
| Instruction Set | — | 130 powerful instructions, most single-clock cycle |
| General Purpose Working Registers | — | 32 x 8-bit |
| I/O Lines | — | 32 programmable I/O lines |
| Serial Interfaces | — | USART, SPI, Two-wire (I2C-compatible) |
| Internal Oscillator | — | Calibrated RC oscillator |
| 工作温度 | — | -40C to +85C |
| RoHS 状态 | — | Compliant |