ATMEGA324P-20AUR vs ATMEGA324A-AU Comparison
Detailed side-by-side comparison of ATMEGA324P-20AUR 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-20AUR
ATMEGA324P-20AUR - 8-Bit AVR MCU 32KB 20MHz | Microchip
ATMEGA324P-20AUR β ActiveMicrochip Technology
ATMEGA324A-AU
ATMEGA324A-AU - AVR MCU 32KB Flash 20MHz TQFP-44 | Microchip
ATMEGA324A-AU β ActiveSpecification Comparison
| Parameter | ATMEGA324P-20AUR | ATMEGA324A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.52 | $2.09 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory Size | 32 KB ISP Flash (16K x 16) | β |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB |
| Maximum Clock Frequency | 20 MHz | β |
| Operating Voltage Range | 4.5 V to 5.5 V | β |
| General Purpose I/O Lines | 32 | β |
| General Purpose Working Registers | 32 | 32 |
| Instruction Set | 131 powerful instructions, most single-clock cycle | β |
| Package | 44-pin TQFP (10 x 10 mm, 0.80 mm pitch) | β |
| Operating Temperature Range | -40C to +85C (industrial) | β |
| ADC | 8-channel 10-bit successive approximation | β |
| USART Interfaces | 2 | β |
| Timer/Counters | Three flexible timer/counters with compare modes and PWM | β |
| Serial Interfaces | SPI master/slave, byte-oriented TWI (I2C) | USART, SPI, 2-Wire (I2C/TWI) |
| Real Time Counter | Yes, with separate oscillator | Yes |
| Flash Endurance | 10,000 write/erase cycles | β |
| EEPROM Endurance | 100,000 write/erase cycles | β |
| Programming Interfaces | SPI, JTAG, bootloader (ISP) | β |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant |
| Flash Memory | β | 32 KB (ISP, read-while-write) |
| 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 |
| Instructions | β | 131 (most single-cycle) |
| Timers/Counters | β | 3 |
| In-System Programming | β | Yes (ISP) |
| Package Type | β | TQFP-44, 10 x 10 mm, 1 mm height, 0.8 mm pitch |
| Operating Temperature | β | -40C to +85C (Industrial) |
| Life Cycle Stage | β | Active |