ATMEGA644P-20PQ vs ATMEGA1284P-PU 比較
詳細並排比較 ATMEGA644P-20PQ 由 Microchip Technology 與 ATMEGA1284P-PU 由 Microchip Technology. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
Microchip Technology
ATMEGA644P-20PQ - 8-bit AVR MCU 20MHz 64KB Flash DIP-40 | Microchip
ATMEGA644P-20PQ Nrnd
規格比較
| 參數 | ATMEGA644P-20PQ | ATMEGA1284P-PU |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 類別 | Microcontrollers | Microcontrollers |
| 生命週期狀態 | NRND | 啟用中 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| 最大時脈頻率 | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) | 128 KB (64K x 16) ISP Flash |
| SRAM | 4 KB (4K x 8) | 16 KB |
| EEPROM | 2 KB | 4 KB |
| Supply Voltage Range | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Voltage (20MHz) | 4.5 V to 5.5 V | — |
| Number of I/O | 32 | — |
| 封裝 | 40-PDIP | 40-PDIP (through-hole) |
| Oscillator Type | Internal RC | — |
| USARTs | 2 | — |
| Instruction Set | 131 instructions, mostly single-cycle | — |
| Processing Throughput | Up to 20 MIPS at 20 MHz (approx. 1 MIPS per MHz) | — |
| Temperature Range | Extended temperature (industrial) | — |
| Programming Features | In-System Programmable Flash, self-programming boot section, JTAG | — |
| Power Modes | Idle, Power-down, Power-save, Standby, Extended Standby (picoPower) | — |
| 安裝類型 | Through Hole | Through Hole |
| RoHS 狀態 | Green (per FindIC listing) | — |
| Max Clock Frequency | — | 20 MHz |
| GPIO Count | — | 32 general purpose I/O lines |
| ADC | — | 8-channel 10-bit |
| USART Count | — | 2 |
| Timer/Counters | — | 3 with compare modes and PWM |
| Serial Interfaces | — | 2x USART, TWI (I2C-compatible), SPI |
| Special Features | — | picoPower, Real Time Counter, Read-While-Write Flash |
| Instruction Set Throughput | — | Up to 1 MIPS per MHz |
| Working Registers | — | 32 general purpose |
| 生命週期狀態 | — | Active |