ATMEGA48A-MMHR vs ATMEGA48PA-MMHR 对比
详细并排对比 ATMEGA48A-MMHR 出自 Microchip Technology 和 ATMEGA48PA-MMHR 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。
规格对比
| 参数 | ATMEGA48A-MMHR | ATMEGA48PA-MMHR |
|---|---|---|
| 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） | $0.00 | $1.62 |
| Core Architecture | 8-bit AVR RISC | — |
| Core Frequency | 20 MHz | — |
| Flash Memory | 4 KB (2K x 16) ISP Flash | 4 KB (2K x 16) |
| EEPROM | 256 B | 256 B |
| SRAM | 512 B | 512 B |
| General Purpose I/O | 23 lines | — |
| Working Registers | 32 x 8-bit | — |
| Instructions | 131 instructions, most single-cycle | — |
| Timer/Counters | 3 flexible timer/counters with compare modes | — |
| Supply Voltage (min, reduced speed) | 1.8 V | — |
| Supply Voltage (full 20 MHz speed) | 4.5 V to 5.5 V | — |
| 封装 | 28-VQFN (4x4 mm), 0.45 mm pitch, 1.0 mm height | 28-pad VQFN/MLF, 4x4 mm, 0.45 mm pitch, 1 mm height |
| 安装类型 | Surface Mount | Surface Mount |
| 生命周期状态 | Active | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40C to +85C (IND) |
| Programmability | In-System Programmable (ISP) Flash | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | Green / RoHS compliant package |
| Core | — | AVR 8-bit RISC |
| 最大时钟频率 | — | 20 MHz |
| Maximum Throughput | — | 20 MIPS at 20 MHz |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| I/O Lines | — | 23 |
| ADC Resolution | — | 10-bit |
| Timers | — | 1 x 8-bit, 1 x 16-bit (plus RTC timer) |
| Communication Interfaces | — | USART, SPI, 2-wire (I2C compatible) |
| Analog Comparator | — | Yes, 1 on-chip |
| Watchdog Timer | — | Programmable, separate on-chip oscillator |
| Packing | — | Tape & Reel (R suffix) |