ATMEGA644P-20MU vs ATMEGA644P-20MQ Comparison
Detailed side-by-side comparison of ATMEGA644P-20MU by Microchip Technology and ATMEGA644P-20MQ by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATMEGA644P-20MU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644P-20MU NrndMicrochip Technology
ATMEGA644P-20MQ - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644P-20MQ NrndSpecification Comparison
| Parameter | ATMEGA644P-20MU | ATMEGA644P-20MQ |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Nrnd | Nrnd |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.02 | $2.48 |
| Core Architecture | AVR 8-bit enhanced RISC | AVR 8-bit RISC |
| Maximum Clock Frequency | 20 MHz | β |
| Flash Memory | 64 KB (32K x 16) | β |
| SRAM | 4 KB | 4 KB (4,096 bytes) |
| EEPROM | 2 KB | 2 KB (2,048 bytes) |
| Supply Voltage | 4.5 V to 5.5 V (at 20 MHz) | β |
| USART Count | 2 | β |
| ADC | 10-bit, up to 8 channels | β |
| Interfaces | SPI, TWI (I2C-compatible), USART, JTAG | β |
| Package | 44-VQFN (7x7 mm) exposed pad | 44-VQFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | Industrial range | β |
| MIPS Rating | Up to 20 MIPS (1 MIPS/MHz) | β |
| RoHS Status | Green / RoHS compliant | β |
| Product Status | Mature product; not recommended for new designs, replaced by ATmega644PA | β |
| CPU Speed | β | 20 MHz |
| Throughput | β | Up to 20 MIPS (1 MIPS per MHz) |
| Flash Program Memory | β | 64 KB (32K x 16) |
| Operating Voltage | β | 5 V |
| Number of I/O | β | 32 |
| Digital Communication Peripherals | β | 2 UART |
| Oscillator Type | β | Internal |
| Instructions | β | 131 powerful instructions, most single-cycle |
| Temperature Grade | β | Industrial, extended temperature |
| Packaging | β | Tape & Reel (TR) |
| Technology Feature | β | picoPower low-power, green/RoHS |
| Programming | β | ICSP via 2 I/O pins + reset, MPLAB SNAP compatible |
| Lifecycle | β | Mature; NRND - replaced by ATmega644PA |