ATMEGA325A-MU vs ATMEGA329P-20MU Comparison
Detailed side-by-side comparison of ATMEGA325A-MU by Microchip Technology and ATMEGA329P-20MU 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
ATMEGA325A-MU - 8-bit AVR MCU 32KB 20MHz 64-QFN | Microchip
ATMEGA325A-MU ✓ ActiveMicrochip Technology
ATMEGA329P-20MU - 8-bit AVR MCU, 32KB Flash, 20MHz | Microchip
ATMEGA329P-20MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA325A-MU | ATMEGA329P-20MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.49 | $4.78 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Max Clock Frequency | 20 MHz | — |
| Flash Memory | 32 KB (16K x 16) | — |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| General Purpose I/O | 54 | — |
| Package | 64-QFN (9x9 mm) Exposed Pad | 64-QFN / MLF (9 x 9 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | — |
| Supply Voltage | [DATA_NEEDED: supply voltage range] | — |
| Peripherals | [DATA_NEEDED: peripheral list] | — |
| Connectivity | [DATA_NEEDED: connectivity interfaces] | — |
| ADC Resolution | [DATA_NEEDED: ADC resolution] | — |
| Programmability | In-System Programmable (ISP), read-while-write | — |
| Debug Interface | [DATA_NEEDED: JTAG/debug support] | — |
| RoHS Status | Compliant | Compliant (Green) |
| MSL Rating | [DATA_NEEDED: moisture sensitivity level] | — |
| Core | — | 8-bit AVR RISC |
| Flash Program Memory | — | 32 KB (16K x 16) |
| Maximum CPU Clock | — | 20 MHz |
| Supply Voltage (Vcc) | — | 2.7 V to 5.5 V |
| General-Purpose I/O Pins | — | 54 |
| ADC | — | 8-channel, 10-bit |
| Timer/Counters | — | Two 8-bit + Two 16-bit with PWM |
| PWM Channels | — | 6 channels |
| Communication Interfaces | — | USART, SPI, TWI (I2C-compatible) |
| LCD Controller | — | Up to 4x32 segment driver (integrated) |
| On-chip Debug | — | JTAG |
| Operating Temperature Range | — | -40C to +85C (Industrial) |
| Instruction Set | — | 131 instructions, mostly single-cycle |
| Working Registers | — | 32 x 8-bit |
| Watchdog Timer | — | Yes, programmable |
| Brown-out Detector | — | Yes |
| Sleep Modes | — | 6 (Idle, Power-down, Power-save, Standby, Ext Standby, ADC Noise Reduction) |
| MSL Level | — | 3 (168 hours) |