ATMEGA324P-20AQR vs ATMEGA324A-AU Comparison
Detailed side-by-side comparison of ATMEGA324P-20AQR by Microchip Technology and ATMEGA324A-AU 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-20AQR
ATMEGA324P-20AQR - 8-bit AVR MCU, 32KB Flash, 20MHz | Microchip
ATMEGA324P-20AQR β ActiveMicrochip Technology
ATMEGA324A-AU
ATMEGA324A-AU - AVR MCU 32KB Flash 20MHz TQFP-44 | Microchip
ATMEGA324A-AU β ActiveSpecification Comparison
| Parameter | ATMEGA324P-20AQR | ATMEGA324A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.78 | $2.09 |
| Core Processor | AVR | β |
| Core Size | 8-bit | β |
| Speed | 20 MHz | β |
| Flash Memory | 32 KB (16K x 16) | 32 KB (ISP, read-while-write) |
| EEPROM Size | 1 KB | β |
| RAM Size | 2 KB | β |
| Supply Voltage (Vcc/Vdd) | 2.7 V to 5.5 V | β |
| GPIO Count | 32 | β |
| Number of USARTs | 2 | β |
| Peripherals | SPI, TWI (I2C), JTAG, WDT, Brown-out Detect/Reset, PWM | β |
| ADC Resolution | 10-bit, 8 channels | β |
| MIPS Throughput | Up to 16-20 MIPS (1 MIPS/MHz) | β |
| Package | 44-TQFP (10x10 mm) | β |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | Extended (A-variant), per Microchip extended range | -40C to +85C (Industrial) |
| Oscillator Type | Internal | β |
| Program Memory Type | ISP FLASH, read-while-write | β |
| RoHS Status | Compliant (GREEN package) | Compliant |
| Packaging | Tape & Reel (T&R) | β |
| Core Architecture | β | 8-bit AVR RISC |
| EEPROM | β | 1 KB |
| SRAM | β | 2 KB |
| Maximum CPU Frequency | β | 20 MHz |
| Supply Voltage Range | β | 1.8 V to 5.5 V (speed-grade dependent) |
| General Purpose I/O | β | 32 lines |
| General Purpose Working Registers | β | 32 |
| Instructions | β | 131 (most single-cycle) |
| Timers/Counters | β | 3 |
| Real Time Counter | β | Yes |
| Serial Interfaces | β | USART, SPI, 2-Wire (I2C/TWI) |
| In-System Programming | β | Yes (ISP) |
| Package Type | β | TQFP-44, 10 x 10 mm, 1 mm height, 0.8 mm pitch |
| Life Cycle Stage | β | Active |