ATMEGA64L-8AJ vs ATMEGA64L-8AU 对比
详细并排对比 ATMEGA64L-8AJ 出自 Microchip Technology 和 ATMEGA64L-8AU 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
ATMEGA64L-8AU - 8-bit AVR MCU, 64KB Flash, 8MHz | Microchip
ATMEGA64L-8AU ✓ 量产中规格对比
| 参数 | ATMEGA64L-8AJ | ATMEGA64L-8AU |
|---|---|---|
| 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） | $4.75 | $4.55 |
| Core Architecture | 8-bit AVR RISC | — |
| Program Memory (Flash) | 64KB (32K x 16) | — |
| SRAM | 4KB | 4KB |
| EEPROM | 2KB | 2KB |
| Maximum Clock Speed | 8MHz | — |
| 电源电压 | 2.7V to 5.5V | — |
| 数据总线宽度 | 8 bit | — |
| I/O Ports | 53 I/O lines | — |
| ADC | 8-channel 10-bit | 8-channel, 10-bit |
| Communication Interfaces | I2C (TWI), SPI, 2x UART/USART | — |
| Timers | 2x 8-bit, 2x 16-bit | — |
| 封装 | 64-TQFP (14x14 mm) | 64-TQFP (14x14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| On-Chip Debug | JTAG (IEEE 1149.1) | — |
| External Memory Interface | Yes (expandable SRAM) | — |
| Lifecycle Stage | ACTIVE | — |
| Approximate Throughput | Up to 8 MIPS at 8MHz | — |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Architecture | — | AVR enhanced RISC, 130 instructions |
| Speed | — | 8 MHz |
| Flash Memory | — | 64KB (32K x 16) In-System Programmable |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| General Purpose I/O | — | 53 lines |
| Timers/Counters | — | 4 (with compare modes and PWM) |
| USART | — | 2 |
| Serial Interfaces | — | TWI (I2C-compatible), SPI, 2x USART |
| JTAG | — | Yes (boundary scan, on-chip debug) |
| RTC | — | Real Time Counter with separate oscillator |
| Lifecycle Note | — | Mature product, not recommended for new designs; replaced by ATmega64A |