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