ATMEGA324P-20AU vs ATMEGA324A-AU Comparison
Detailed side-by-side comparison of ATMEGA324P-20AU 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-20AU - 8-bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA324P-20AU ✓ ActiveMicrochip Technology
ATMEGA324A-AU - AVR MCU 32KB Flash 20MHz TQFP-44 | Microchip
ATMEGA324A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA324P-20AU | ATMEGA324A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Maximum Clock Frequency | 20 MHz | — |
| Flash Memory | 32 KB (16K x 16) ISP | 32 KB (ISP, read-while-write) |
| 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 | — |
| Serial Interfaces | 2x USART, SPI, Two-Wire (I2C-compatible) | USART, SPI, 2-Wire (I2C/TWI) |
| Package | 44-TQFP (10x10 mm) | — |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C (Industrial) |
| Programming | In-System Programmable (ISP), read-while-write | — |
| Low Power Technology | picoPower | — |
| Working Registers | 32 general purpose | — |
| Moisture Sensitivity Level | [DATA_NEEDED: MSL level] | — |
| Maximum CPU Frequency | — | 20 MHz |
| Supply Voltage Range | — | 1.8 V to 5.5 V (speed-grade dependent) |
| General Purpose I/O | — | 32 lines |
| General Purpose Working Registers | — | 32 |
| Instructions | — | 131 (most single-cycle) |
| Timers/Counters | — | 3 |
| Real Time Counter | — | Yes |
| In-System Programming | — | Yes (ISP) |
| Package Type | — | TQFP-44, 10 x 10 mm, 1 mm height, 0.8 mm pitch |
| Life Cycle Stage | — | Active |
| RoHS Status | — | Compliant |