ATMEGA164P-20MU vs ATMEGA164A-MU Comparison
Detailed side-by-side comparison of ATMEGA164P-20MU by Microchip Technology and ATMEGA164A-MU 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
ATMEGA164P-20MU
ATMEGA164P-20MU - 8-bit AVR MCU 20MHz 16KB Flash | Microchip
ATMEGA164P-20MU β ActiveMicrochip Technology
ATMEGA164A-MU
ATMEGA164A-MU - 8-bit AVR MCU 16KB Flash 20MHz VQFN-44 | Microchip
ATMEGA164A-MU β ActiveSpecification Comparison
| Parameter | ATMEGA164P-20MU | ATMEGA164A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.98 | $3.01 |
| Core Processor | AVR | β |
| Core Size | 8-Bit | β |
| Speed | 20 MHz | β |
| Program Memory Size | 16 KB (8K x 16) FLASH | β |
| EEPROM Size | 512 B | β |
| RAM Size | 1 KB SRAM | β |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Number of I/O | 32 | β |
| Timers/Counters | 3 (with compare modes and PWM) | β |
| Communication Interfaces | 2x USART, TWI (I2C), SPI | β |
| ADC | 8-channel 10-bit | 10-bit ADC (per family datasheet) |
| RTC | Yes (real-time counter) | β |
| Instructions | 133 (advanced RISC, mostly single-cycle) | β |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | -40C to +85C (industrial) |
| Package | 44-VQFN (7x7 mm) with Exposed Pad | 44-VQFN (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Low Power Technology | picoPower | β |
| Programming | ISP (In-System Programming), read-while-write | β |
| Core Architecture | β | AVR 8-bit RISC |
| Program Memory (FLASH) | β | 16 KB (8K x 16) ISP |
| EEPROM | β | 512 B |
| SRAM | β | 1 KB |
| Maximum Clock Frequency | β | 20 MHz |
| Throughput | β | Up to 20 MIPS (approx. 1 MIPS per MHz) |
| Instruction Set | β | 133 powerful instructions, most single-cycle |
| General Purpose I/O | β | 32 I/O lines |
| General Purpose Registers | β | 32 |
| Peripherals | β | Real-time counter, timers/PWM, WDT, brown-out detection |
| Programming Interface | β | ISP (In-System Programmable), read-while-write |
| Life Cycle Stage | β | Active |