ATMEGA644PA-MU vs ATMEGA164PA-MNR Comparison
Detailed side-by-side comparison of ATMEGA644PA-MU by Microchip Technology and ATMEGA164PA-MNR 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
ATMEGA644PA-MU - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644PA-MU ✓ ActiveMicrochip Technology
ATMEGA164PA-MNR - 8-bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA164PA-MNR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA644PA-MU | ATMEGA164PA-MNR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.78 | $2.66 |
| Core Architecture | 8-bit AVR RISC | AVR enhanced RISC, 8-bit |
| Core Frequency | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) ISP Flash, read-while-write | 16 KB (8K x 16) ISP flash, read-while-write |
| EEPROM | 2 KB | 512 B |
| SRAM | 4 KB | 1 KB |
| GPIO Count | 32 | — |
| MIPS Throughput | Up to 20 MIPS at 20 MHz | — |
| Instructions | 131 instructions, most single-cycle | — |
| Timer/Counters | Three flexible timer/counters with compare modes and PWM | — |
| USART | Two programmable serial USARTs | 2 |
| Serial Interfaces | Two-Wire Interface (I2C-compatible), SPI | Two-Wire (I2C), SPI |
| ADC | 8-channel 10-bit ADC | 8-channel 10-bit |
| RTC | Real Time Counter with separate oscillator | — |
| Low Power Technology | picoPower | picoPower |
| Supply Voltage Range | 2.5 V / 3.3 V / 5 V class (per distributor listing: 2.5V/3.3V/5V) | — |
| Package | 44-VQFN (7x7 mm), exposed pad | 44-VQFN (7x7 mm) exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | RoHS compliant (per Microchip product listing) | Compliant (GRN / green per Mouser) |
| Data Sheet Document Number | DS40002070A (per Microchip ATMEGA644PA-MU data sheet) | — |
| Max Clock Frequency | — | 20 MHz |
| I/O Lines | — | 32 general purpose I/O |
| Timers | — | 3 timer/counters with compare modes and PWM |
| Operating Voltage | — | 2.5 V / 3.3 V / 5 V |
| Programming | — | ISP, IAP; debugWire/ICSP via reset line |
| Packaging | — | Tape & Reel (T/R) |
| Working Registers | — | 32 x 8-bit general purpose |