ATMEGA164A-AU vs ATMEGA328P-AUR Comparison
Detailed side-by-side comparison of ATMEGA164A-AU by Microchip Technology and ATMEGA328P-AUR 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
ATMEGA164A-AU - 8-bit AVR MCU, 16KB Flash, 20MHz, 44-TQFP
ATMEGA164A-AU ✓ ActiveMicrochip Technology
ATMEGA328P-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, TQFP-32 | Microchip
ATMEGA328P-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA164A-AU | ATMEGA328P-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.65 | $2.18 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| Program Memory (Flash) | 16 KB (8K x 16) | 32 KB |
| EEPROM | 512 B | 1 KB |
| SRAM | 1 KB | 2 KB |
| 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 | — |
| ADC | 8-channel, 10-bit | 10-bit, up to 8 channels |
| Timers/Counters | Two 8-bit, One 16-bit | — |
| PWM Channels | 6 | 6 |
| Communication Interfaces | 2x USART, SPI, I2C (TWI) | USART, SPI, I2C (TWI) |
| Operating Temperature | -40C to +85C (industrial) | — |
| Package | 44-TQFP (10x10 mm) | 32-pin TQFP, 7x7 mm, 0.8 mm pitch |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant |
| 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 |
| Timers | — | 2 x 8-bit, 1 x 16-bit |
| 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) |
| Throughput | — | 20 MIPS at 20 MHz |