ATMEGA328P-AUR vs ATMEGA164A-AU Comparison
Detailed side-by-side comparison of ATMEGA328P-AUR by Microchip Technology and ATMEGA164A-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
ATMEGA328P-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, TQFP-32 | Microchip
ATMEGA328P-AUR ✓ ActiveMicrochip Technology
ATMEGA164A-AU - 8-bit AVR MCU, 16KB Flash, 20MHz, 44-TQFP
ATMEGA164A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328P-AUR | ATMEGA164A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.18 | $2.65 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| Program Memory (Flash) | 32 KB | 16 KB (8K x 16) |
| SRAM | 2 KB | 1 KB |
| EEPROM | 1 KB | 512 B |
| Maximum Clock Frequency | 20 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| Operating Temperature Range | -40 C to +85 C (Industrial) | — |
| I/O Pins | 23 programmable | — |
| ADC | 10-bit, up to 8 channels | 8-channel, 10-bit |
| PWM Channels | 6 | 6 |
| Timers | 2 x 8-bit, 1 x 16-bit | — |
| Communication Interfaces | USART, SPI, I2C (TWI) | 2x USART, SPI, I2C (TWI) |
| Package | 32-pin TQFP, 7x7 mm, 0.8 mm pitch | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Instruction Set | 131 instructions, mostly single-cycle | — |
| Working Registers | 32 x 8-bit | — |
| Watchdog Timer | Yes, with separate on-chip oscillator | — |
| Brown-out Detection | Yes | — |
| Power-Saving Modes | 6 software-selectable | — |
| MSL Level | 3 (168 hours) | — |
| RoHS Status | Compliant | Compliant |
| Throughput | 20 MIPS at 20 MHz | — |
| Maximum CPU Speed | — | 20 MHz (20 MIPS) |
| Supply Voltage | — | 2.7 V to 5.5 V (4.5V-5.5V at 20MHz) |
| General Purpose I/O | — | 32 |
| Timers/Counters | — | Two 8-bit, One 16-bit |
| Operating Temperature | — | -40C to +85C (industrial) |