ATMEGA164A-AU vs ATMEGA164PA-AUR Comparison
Detailed side-by-side comparison of ATMEGA164A-AU by Microchip Technology and ATMEGA164PA-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
ATMEGA164PA-AUR - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA164PA-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA164A-AU | ATMEGA164PA-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.65 | $2.05 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR enhanced RISC |
| Program Memory (Flash) | 16 KB (8K x 16) | 16 KB (8K x 16) in-system programmable |
| EEPROM | 512 B | 512 B |
| SRAM | 1 KB | 1 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 | 8-channel, 10-bit successive approximation |
| Timers/Counters | Two 8-bit, One 16-bit | — |
| PWM Channels | 6 | — |
| Communication Interfaces | 2x USART, SPI, I2C (TWI) | — |
| Operating Temperature | -40C to +85C (industrial) | — |
| Package | 44-TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant |
| Maximum Clock Frequency | — | 20 MHz |
| Throughput | — | Up to 20 MIPS at 20 MHz (1 MIPS/MHz) |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| General Purpose I/O Lines | — | 32 |
| General Purpose Working Registers | — | 32 |
| Serial Interfaces | — | 2x USART, 1x TWI (I2C), 1x SPI |
| Timers | — | 2x 8-bit, 1x 16-bit with PWM and compare modes |
| Real-Time Counter | — | Yes, with separate oscillator |
| Operating Temperature Range | — | -40 C to +85 C (industrial) |
| Packaging | — | Tape & Reel (AUR suffix) |
| Instruction Set | — | 131 powerful instructions, most single clock cycle |
| Programming Interfaces | — | SPI, JTAG (IEEE 1149.1), debugWIRE |