ATMEGA329P-20AU vs ATMEGA329P-20AN Comparison
Detailed side-by-side comparison of ATMEGA329P-20AU by Microchip Technology and ATMEGA329P-20AN 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
ATMEGA329P-20AU - 20MHz 8-bit AVR MCU 32KB Flash TQFP-64
ATMEGA329P-20AU ✓ ActiveMicrochip Technology
ATMEGA329P-20AN - 8-bit AVR MCU 32KB Flash 64-TQFP | Microchip
ATMEGA329P-20AN ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329P-20AU | ATMEGA329P-20AN |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.71 | $2.95 |
| Core Architecture | AVR (8-bit RISC, Harvard) | AVR 8-bit RISC |
| Instruction Set | 131 instructions, mostly single-cycle | 131 instructions, most single-cycle |
| Program Memory (Flash) | 32 KB (16K x 16), In-System Programmable with RWW | 32 KB |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB (2K x 8) | 2 KB |
| Maximum Clock Speed | 20 MHz | — |
| Throughput | Up to 20 MIPS at 20 MHz | — |
| Supply Voltage (Vcc) | 2.7 V to 5.5 V (10 MHz max below 4.5 V; 20 MHz requires 4.5-5.5 V) | 2.7 V to 5.5 V |
| General-Purpose I/O Pins | 54 | — |
| General-Purpose Working Registers | 32 | — |
| ADC | 10-bit, up to 8 single-ended channels | [DATA_NEEDED: ADC channels and resolution] |
| PWM Channels | 6 | — |
| Communication Peripherals | 2x USART, 1x TWI (I2C), 1x SPI (also ISP) | — |
| Debug Interface | JTAG (IEEE 1149.1 compliant) | — |
| Package | 64-pin TQFP (14x14 mm, 0.8 mm pitch) | 64-pin TQFP (14x14 mm, 0.8 mm pitch) |
| Operating Temperature | -40C to +85C (industrial, -A suffix) | -40C to +105C |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (Pb-free / Green) | Compliant (Green) |
| Power-Save Modes | Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby (picoPower) | — |
| QTouch Support | Yes (peripheral touch controller via library) | — |
| Maximum CPU Speed | — | 20 MHz (20 MIPS) |
| Number of I/O Pins | — | [DATA_NEEDED: total I/O pin count] |
| Communication Interfaces | — | SPI, UART/USART, USI |
| LCD Controller | — | Integrated (supports up to 4x25 segments) |
| Timers/Counters | — | 4 (with compare modes, PWM) |
| Power-Saving Modes | — | 6 software-selectable modes |
| In-System Programming | — | Yes (SPI-based ISP) |