ATMEGA329P-20AU vs ATMEGA329P-20ANR Comparison
Detailed side-by-side comparison of ATMEGA329P-20AU by Microchip Technology and ATMEGA329P-20ANR 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-20ANR - 8-bit AVR MCU 32KB Flash 20MHz 64-TQFP | Microchip
ATMEGA329P-20ANR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329P-20AU | ATMEGA329P-20ANR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.71 | $4.30 |
| Core Architecture | AVR (8-bit RISC, Harvard) | AVR 8-bit RISC |
| Instruction Set | 131 instructions, mostly single-cycle | — |
| Program Memory (Flash) | 32 KB (16K x 16), In-System Programmable with RWW | — |
| EEPROM | 1 KB | — |
| SRAM | 2 KB (2K x 8) | — |
| 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) | — |
| General-Purpose I/O Pins | 54 | — |
| General-Purpose Working Registers | 32 | — |
| ADC | 10-bit, up to 8 single-ended channels | 8-channel, 10-bit |
| PWM Channels | 6 | — |
| Communication Peripherals | 2x USART, 1x TWI (I2C), 1x SPI (also ISP) | — |
| Debug Interface | JTAG (IEEE 1149.1 compliant) | JTAG |
| Package | 64-pin TQFP (14x14 mm, 0.8 mm pitch) | 64-TQFP (14x14 mm) |
| Operating Temperature | -40C to +85C (industrial, -A suffix) | — |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (Pb-free / Green) | — |
| Power-Save Modes | Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby (picoPower) | — |
| QTouch Support | Yes (peripheral touch controller via library) | — |
| Program Memory Type | — | Flash (In-System Programmable) |
| Program Memory Size | — | 32 KB (16K x 16) |
| SRAM Size | — | 2 KB |
| EEPROM Size | — | 1 KB |
| Maximum CPU Speed | — | 20 MHz |
| MIPS Throughput | — | 16 MIPS (up to 20 MHz) |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| Operating Temperature Range | — | -40 C to +105 C |
| Number of I/O Pins | — | 54 |
| Number of General-Purpose Registers | — | 32 |
| Timers/Counters | — | Two 8-bit, One 16-bit |
| Communication Interfaces | — | USART, SPI (Master/Slave), TWI (I2C) |
| Lead-Free / RoHS | — | Compliant |