ATMEGA644P-15AT vs ATMEGA644PA-AU 对比
详细并排对比 ATMEGA644P-15AT 出自 Microchip Technology 和 ATMEGA644PA-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
ATMEGA644P-15AT - 8-bit AVR MCU 64KB Flash 16MHz TQFP-44 | Microchip
ATMEGA644P-15AT ObsoleteMicrochip Technology
ATMEGA644PA-AU - 8-bit AVR MCU, 20MHz, 64KB Flash | Microchip
ATMEGA644PA-AU ✓ 量产中规格对比
| 参数 | ATMEGA644P-15AT | ATMEGA644PA-AU |
|---|---|---|
| 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） | $4.12 | $4.61 |
| Core Architecture | AVR 8-bit enhanced RISC | AVR 8-bit RISC |
| Program Memory (Flash) | 64 KB (32K x 16) | 64 KB (32K x 16) |
| SRAM | 4 KB | 4 KB |
| EEPROM | 2 KB | 2 KB |
| 最大时钟频率 | 16 MHz (at 5V) | 20 MHz |
| Throughput | Up to 1 MIPS per MHz (16 MIPS peak) | — |
| Operating Voltage (VCC) | 2.7 V to 5.5 V | — |
| General-Purpose I/O Lines | 32 | — |
| ADC | 8-channel, 10-bit, with differential mode | 8-channel, 10-bit |
| USART | 2 (dual USART, 'P' variant) | 2 |
| SPI | 1 master/slave | 1 |
| TWI (I2C) | 1 byte-oriented | — |
| Timer/Counters | 3 with PWM and compare modes | 3 (with PWM and compare modes) |
| Watchdog Timer | Yes, programmable | — |
| 封装 | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C (industrial) | -40C to +85C (industrial) |
| AEC-Q100 Qualification | Grade 1 | — |
| RoHS 状态 | Compliant | Compliant |
| In-System Programmable | Yes (Flash, Read-While-Write) | — |
| picoPower Technology | Yes | — |
| Family | — | ATmega |
| Series | — | ATmega644P / picoPower |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| GPIO Pins | — | 32 |
| I2C (TWI) | — | 1 |
| MIPS | — | 20 MIPS at 20 MHz |
| Programming Interface | — | ISP / ICSP / JTAG / debugWIRE |