ATMEGA324P-20AU vs ATMEGA324P-20AUR Comparison
Detailed side-by-side comparison of ATMEGA324P-20AU by Microchip Technology and ATMEGA324P-20AUR 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-20AU - 8-bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA324P-20AU ✓ ActiveMicrochip Technology
ATMEGA324P-20AUR - 8-Bit AVR MCU 32KB 20MHz | Microchip
ATMEGA324P-20AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA324P-20AU | ATMEGA324P-20AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.24 | $4.52 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Flash Memory | 32 KB (16K x 16) ISP | — |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB |
| Supply Voltage | 4.5 V to 5.5 V (20 MHz rating) | — |
| Number of I/O Lines | 32 | — |
| USARTs | 2 | — |
| Timers | 3 timer/counters with compare modes and PWM | — |
| ADC | 8-channel, 10-bit | 8-channel 10-bit successive approximation |
| Serial Interfaces | 2x USART, SPI, Two-Wire (I2C-compatible) | SPI master/slave, byte-oriented TWI (I2C) |
| Package | 44-TQFP (10x10 mm) | 44-pin TQFP (10 x 10 mm, 0.80 mm pitch) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Programming | In-System Programmable (ISP), read-while-write | — |
| Low Power Technology | picoPower | — |
| Working Registers | 32 general purpose | — |
| Moisture Sensitivity Level | [DATA_NEEDED: MSL level] | — |
| Program Memory Size | — | 32 KB ISP Flash (16K x 16) |
| Operating Voltage Range | — | 4.5 V to 5.5 V |
| General Purpose I/O Lines | — | 32 |
| General Purpose Working Registers | — | 32 |
| Instruction Set | — | 131 powerful instructions, most single-clock cycle |
| Operating Temperature Range | — | -40C to +85C (industrial) |
| USART Interfaces | — | 2 |
| Timer/Counters | — | Three flexible timer/counters with compare modes and PWM |
| Real Time Counter | — | Yes, with separate oscillator |
| Flash Endurance | — | 10,000 write/erase cycles |
| EEPROM Endurance | — | 100,000 write/erase cycles |
| Programming Interfaces | — | SPI, JTAG, bootloader (ISP) |
| RoHS Status | — | Compliant |