ATMEGA164P-20AQR vs ATMEGA324P-20AUR Comparison
Detailed side-by-side comparison of ATMEGA164P-20AQR 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
ATMEGA164P-20AQR - 16KB Flash 20MHz AVR MCU | Microchip
ATMEGA164P-20AQR ✓ ActiveMicrochip Technology
ATMEGA324P-20AUR - 8-Bit AVR MCU 32KB 20MHz | Microchip
ATMEGA324P-20AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA164P-20AQR | ATMEGA324P-20AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 16 KB (8K x 16) ISP Flash with read-while-write | — |
| EEPROM | 512 B | 1 KB |
| SRAM | 1 KB | 2 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| Throughput | Up to 20 MIPS (1 MIPS per MHz) | — |
| General Purpose I/O | 32 lines | — |
| Working Registers | 32 general purpose | — |
| Package | 44-TQFP (10x10 mm) | 44-pin TQFP (10 x 10 mm, 0.80 mm pitch) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | — |
| Debug / Programming | ICSP via 2 I/O pins + reset; MPLAB SNAP compatible | — |
| Low Power Technology | picoPower | — |
| Operating Temperature | [DATA_NEEDED: Operating Temperature Range] | — |
| Product Status | Active | — |
| 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) |
| ADC | — | 8-channel 10-bit successive approximation |
| USART Interfaces | — | 2 |
| Timer/Counters | — | Three flexible timer/counters with compare modes and PWM |
| Serial Interfaces | — | SPI master/slave, byte-oriented TWI (I2C) |
| 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 |