Microchip Technology ATMEGA164P-20AQ

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Tray |
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 32
Program Memory Size 16KB (8K x 16)
Program Memory Type FLASH
EEPROM Size 512 x 8
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 44-TQFP (10x10)
Package / Case 44-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA164P-20AQ is a high-performance 8-bit AVR microcontroller from Microchip, featuring 16KB of flash memory and 1KB SRAM. It operates at up to 20MHz with a supply voltage range of 2.7V to 5.5V, making it ideal for industrial and automotive environments. The 44-TQFP package provides a compact footprint for space-constrained designs.

  • High-speed 20MHz AVR core: Enables fast processing for real-time applications.
  • Wide voltage range (2.7V-5.5V): Simplifies power supply design and supports battery operation.
  • Extended temperature range (-40°C to 105°C): Suitable for harsh environments.
  • Integrated Brown-out Detect and POR: Enhances system reliability during power fluctuations.

Industrial Control Systems

With a 20MHz AVR core and 16KB flash, it handles real-time control loops and sensor interfacing in PLCs and motor controllers.

Automotive Aftermarket

Its -40°C to 105°C temperature range and 5.5V tolerance make it suitable for engine bay sensors and body control modules.

Smart Energy Meters

The low-power sleep modes and integrated POR/Brown-out detect ensure reliable operation in utility metering applications.

Medical Monitoring Devices

1KB SRAM and PWM outputs support simple signal processing and actuator control in portable diagnostic tools.

Home Automation Gateways

Multiple I/O pins and WDT enhance robustness in Zigbee or Z-Wave bridge controllers.

Battery-Powered Instruments

Wide voltage range allows direct operation from 3xAA batteries without external regulation.

Q: What is the maximum operating frequency of the ATMEGA164P-20AQ?
A: The maximum operating frequency is 20 MHz.
Q: What is the supply voltage range?
A: It operates from 2.7V to 5.5V.
Q: What package is this device available in?
A: It comes in a 44-TQFP package.
Q: Does it include a watchdog timer?
A: Yes, it features a Watchdog Timer (WDT).
Base Product Number : ATMEGA164P
16KB Flash 20MHz 44-TQFP 8-bit MCU Automotive AVR Industrial PWM WDT
Q: What is the maximum operating frequency of the ATMEGA164P-20AQ?
A: The maximum operating frequency is 20 MHz.
Q: What is the supply voltage range?
A: It operates from 2.7V to 5.5V.
Q: What package is this device available in?
A: It comes in a 44-TQFP package.
Q: Does it include a watchdog timer?
A: Yes, it features a Watchdog Timer (WDT).