ATMEGA329P-20MU vs ATMEGA325P-20MU Comparison
Detailed side-by-side comparison of ATMEGA329P-20MU by Microchip Technology and ATMEGA325P-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
ATMEGA329P-20MU - 8-bit AVR MCU, 32KB Flash, 20MHz | Microchip
ATMEGA329P-20MU ✓ ActiveMicrochip Technology
ATMEGA325P-20MU - 8-bit AVR MCU 32KB 20MHz 64-QFN | Microchip
ATMEGA325P-20MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329P-20MU | ATMEGA325P-20MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.78 | $2.21 |
| Core | 8-bit AVR RISC | — |
| Flash Program Memory | 32 KB (16K x 16) | 32 KB (16K x 16) |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB (1024B) |
| Maximum CPU Clock | 20 MHz | — |
| Supply Voltage (Vcc) | 2.7 V to 5.5 V | — |
| General-Purpose I/O Pins | 54 | — |
| Package | 64-QFN / MLF (9 x 9 mm) with exposed pad | 64-VFQFN Exposed Pad (9x9 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| ADC | 8-channel, 10-bit | 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 | 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) | — |
| RoHS Status | Compliant (Green) | — |
| Core Architecture | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| Maximum Clock Frequency | — | 20 MHz |
| Throughput | — | 20 MIPS at 20 MHz |
| Supply Voltage Range (family) | — | 1.8 V to 5.5 V |
| Supply Voltage Range (20 MHz grade) | — | 4.5 V to 5.5 V |
| Debug / Programming Interface | — | JTAG, ICSP |
| Programming Features | — | Self-programming Flash, In-System Programmable |
| Lifecycle Status | — | ACTIVE |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |