ATMEGA325-16MI vs ATMEGA325A-AU Comparison
Detailed side-by-side comparison of ATMEGA325-16MI by Microchip Technology and ATMEGA325A-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
ATMEGA325-16MI - AVR 8-Bit MCU 16MHz 32KB Flash | Microchip
ATMEGA325-16MI ✓ ActiveMicrochip Technology
ATMEGA325A-AU - AVR 8-bit MCU 32KB Flash 20MHz 64TQFP | Microchip
ATMEGA325A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA325-16MI | ATMEGA325A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Max Clock Frequency | 16 MHz | — |
| Program Memory (Flash) | 32 KB (16K x 16) | — |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB |
| Operating Voltage Range | 2.7 V to 5.5 V | — |
| Number of I/O | 54 programmable I/O lines | — |
| Instructions | 130 powerful instructions, most single-cycle | 131 powerful instructions, most single-cycle |
| Timers/Counters | Two 8-bit and two 16-bit | — |
| ADC | 10-bit | — |
| Serial Interfaces | USART, SPI, TWI (I2C-compatible) | — |
| Package | 64-QFN / MLF (9x9 mm) with exposed pad | 64-TQFP, 14 x 14 mm, 0.8 mm pitch |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) | — |
| ISP (In-System Programmable) | Yes | — |
| JTAG / Debug | JTAG boundary scan and on-chip debug | — |
| RoHS Status | Compliant (Green per FindIC data) | Green (lead-free, per FindIC listing) |
| Flash Memory | — | 32 KB (16K x 16) ISP Flash with read-while-write |
| Maximum Clock Frequency | — | 20 MHz |
| General Purpose I/O | — | 54 lines |
| Working Registers | — | 32 general purpose registers |
| Debug / Test Interface | — | JTAG (on-chip debug and boundary scan) |
| Supply Voltage | — | 4.5 V to 5.5 V |
| Temperature Grade | — | Industrial |
| Lifecycle Stage | — | ACTIVE |
| Operating Temperature Range | — | [DATA_NEEDED: operating temperature range] |
| Moisture Sensitivity Level | — | [DATA_NEEDED: MSL level] |