ATMEGA324P-20MQ vs ATMEGA644P-20MQ Comparison
Detailed side-by-side comparison of ATMEGA324P-20MQ 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
ATMEGA324P-20MQ - 8-bit AVR MCU 32KB 20MHz VQFN-44 | Microchip
ATMEGA324P-20MQ ✓ ActiveMicrochip Technology
ATMEGA644P-20MQ - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644P-20MQ NrndSpecification Comparison
| Parameter | ATMEGA324P-20MQ | ATMEGA644P-20MQ |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | NRND |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.15 | $2.48 |
| Core | AVR 8-bit RISC | — |
| Core Size | 8-bit | — |
| Maximum Clock Frequency | 20 MHz | — |
| Flash Memory | 32 KB (16K x 16) ISP | — |
| EEPROM | 1 KB | 2 KB (2,048 bytes) |
| SRAM | 2 KB | 4 KB (4,096 bytes) |
| Supply Voltage | 5 V | — |
| Number of I/O | 32 general purpose I/O lines | 32 |
| Package | 44-VQFN (7x7 mm), exposed pad | 44-VQFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature Range | Extended temperature (M suffix) | — |
| Instruction Set | 131 powerful instructions | — |
| Working Registers | 32 general purpose registers | — |
| Low Power Technology | picoPower | — |
| Programming / Debug | ICSP, JTAG | — |
| Timers / RTC | Real time counter plus three flexible timers | — |
| RoHS Status | Green package (per FindIC listing) | — |
| 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) |
| Operating Voltage | — | 5 V |
| Digital Communication Peripherals | — | 2 UART |
| Oscillator Type | — | Internal |
| Instructions | — | 131 powerful instructions, most single-cycle |
| Temperature Grade | — | Industrial, extended temperature |
| Packaging | — | 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 |