ATMEGA329A-AU vs ATMEGA3290A-AU Comparison
Detailed side-by-side comparison of ATMEGA329A-AU by Microchip Technology and ATMEGA3290A-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
ATMEGA329A-AU - 32KB AVR MCU, 20MHz, TQFP-64 | Microchip
ATMEGA329A-AU ✓ ActiveMicrochip Technology
ATMEGA3290A-AU - 8-bit AVR MCU 32KB Flash LCD | Microchip
ATMEGA3290A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329A-AU | ATMEGA3290A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.31 | $3.85 |
| Core Architecture | 8-bit AVR RISC | — |
| Flash Memory | 32 KB ISP Flash (16K x 16) with read-while-write | — |
| SRAM | 2 KB | — |
| EEPROM | 1 KB | — |
| Maximum Clock Frequency | 20 MHz | — |
| General Purpose I/O | 54 lines | — |
| Working Registers | 32 general purpose | 32 general purpose |
| LCD Controller | On-chip LCD controller with internal contrast control | On-chip, up to 4 x 40 segments, internal contrast control |
| Debug/Programming Interface | JTAG (boundary-scan, on-chip debug, ISP programming) | JTAG (boundary-scan, on-chip debug and programming) |
| Timers | Three flexible timers | Two 8-bit with prescaler/compare, one 16-bit |
| Package | 64-TQFP (14x14 mm) | — |
| Mounting Type | Surface Mount | Surface Mount |
| Temperature Grade | Industrial | — |
| RoHS Status | Green (compliant) | — |
| Supply Voltage Range | 2.5 V to 5.5 V (per ATmega329A family; see datasheet) | — |
| Product Family | AVR ATmega | — |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 20 MHz |
| Program Memory Size | — | 32KB (16K x 16) FLASH |
| RAM Size | — | 2K x 8 SRAM |
| EEPROM Size | — | 1KB |
| Number of I/O | — | 69 |
| Instructions | — | 130 powerful instructions, most single-cycle |
| Oscillator Type | — | Internal |
| Package / Case | — | 100-TQFP (14x14 mm) |
| Operating Temperature | — | Industrial range |
| Packaging | — | Tape & Reel (TR) |
| Operating Supply Voltage | — | [DATA_NEEDED: operating supply voltage range] |