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Product Detailed Parameters
- Description：IC MCU 8BIT 16KB FLASH 20VQFN
- Series：AVR® DD
- Mfr：Microchip Technology
- Package：Tray
- Core Processor：AVR
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：I2C, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：16
- Program Memory Size：16KB (16K x 8)
- Program Memory Type：FLASH
- EEPROM Size：256 x 8
- RAM Size：2K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 13x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-VQFN (3x3)
- Package / Case：20-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The AVR16DD20-I/REB is an 8-bit microcontroller from the AVR DD family, featuring a 16 KB Flash program memory and 2 KB SRAM. It operates at a maximum clock frequency of 24 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC with 13 channels, a 10-bit DAC, two USARTs, SPI, and TWI interfaces. It utilizes a VQFN-20 package and supports industrial temperature ranges.
Feature Summary
- Multi-Voltage I/O (MVIO) capability on PORTC for flexible interfacing
- Integrated Zero-Cross Detector (ZCD) for AC power control applications
- Configurable Custom Logic (CCL) with Look-up Tables for hardware logic implementation
- Event System for peripheral-to-peripheral signaling without CPU intervention
Applications
- Industrial control systems requiring real-time processing
- Smart home appliances with multi-voltage interface needs
- IoT devices utilizing low-power operation modes
- AC motor control applications leveraging ZCD features
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the 'I' designation matches the required industrial operating range. Confirm tape and reel specifications if automated assembly is planned. Cross-reference the Mouser or DigiKey part numbers for accurate stock availability and lead times.
Selection Notes
Select this model when 16 KB of Flash and 2 KB of RAM are sufficient for the application code and data storage requirements. Consider the 20-pin VQFN package constraints for PCB layout. Evaluate the need for the 12-bit ADC resolution and MVIO features compared to lower-end variants in the AVR DD family. Ensure the 24 MHz performance meets the timing requirements of the target system.
Part Context
This component belongs to the AVR DD family of 8-bit microcontrollers, which share pin compatibility across different memory sizes. It sits below the AVR32DD20 and AVR64DD20 models in terms of memory capacity but retains identical peripheral sets and pinouts within the 20-pin configuration. This allows for vertical migration within the family without hardware redesign.
Replacement Considerations
AVR16DD20T-I/REB offers the same specifications in a tape and reel package variant. AVR32DD20-I/REB provides increased memory while maintaining pin compatibility. AVR16DD14-I/REB reduces pin count and features. Verify that any substitute maintains the required VQFN-20 footprint and electrical characteristics.
