ATMEGA644P-20MQ vs ATMEGA644P-20MQR Ikinahambing
Detalyadong pagkakahiwalay na pagkakahambing ng ATMEGA644P-20MQ sa pamamagitan ng Microchip Technology at ATMEGA644P-20MQR sa pamamagitan ng Microchip Technology. Ikinahambing ang mga pangunahing paglalarawan, mga tama ng elektriko, paakay, kalagayan ng buhay, presyo, at pagkakaroon upang makita ang pinakamahusay na komponente para sa iyong mga kinakailangang pang disenyo.
Microchip Technology
ATMEGA644P-20MQ - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644P-20MQ NrndPagsanggunian na paghahambing
| Parametro | ATMEGA644P-20MQ | ATMEGA644P-20MQR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Kategorya | Microcontrollers | Microcontrollers |
| Katayuan ng Lifecycle | NRND | NRND |
| Core Architecture | AVR 8-bit RISC | — |
| CPU Speed | 20 MHz | — |
| Throughput | Up to 20 MIPS (1 MIPS per MHz) | — |
| Flash Program Memory | 64 KB (32K x 16) | 64 KB (32K x 16) |
| SRAM | 4 KB (4,096 bytes) | 4 KB (4K x 8) |
| EEPROM | 2 KB (2,048 bytes) | 2 KB |
| Operating Voltage | 5 V | — |
| Number of I/O | 32 | 32 |
| Digital Communication Peripherals | 2 UART | — |
| Oscillator Type | Internal | Internal |
| Instructions | 131 powerful instructions, most single-cycle | — |
| Packhaging | 44-VQFN (7x7 mm) with exposed pad | — |
| Uri ng Pagpapasok | Surface Mount | Surface Mount |
| Temperature Grade | Industrial, extended temperature | — |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) |
| Technology Feature | picoPower low-power, green/RoHS | — |
| Programming | ICSP via 2 I/O pins + reset, MPLAB SNAP compatible | — |
| Lifecycle | Mature; NRND - replaced by ATmega644PA | — |
| Core Processor | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| Speed (Max Clock) | — | 20 MHz |
| Supply Voltage (VCC) | — | 4.5 V to 5.5 V (at 20 MHz) |
| USART Count | — | 2 (P variant dual USART) |
| Timers | — | Two 8-bit, one 16-bit |
| ADC | — | 8-channel, 10-bit |
| Communication Interfaces | — | USART x2, SPI, TWI (I2C) |
| Debug Interface | — | JTAG (on-chip debug, boundary scan) |
| Instruction Set | — | 131 instructions, mostly single-cycle |
| Low Power Technology | — | picoPower |
| Temperature na Operasyon | — | -40C to +105C (extended, M grade) |
| Packhaging / Kaso | — | 44-VQFN (7x7 mm) exposed pad (MLF) |
| RoHS / Green Status | — | GREEN, RoHS compliant |