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Product Detailed Parameters
- Description：IC MCU 8BIT 16KB FLASH 28VFQFN
- Series：AVR® DD
- Mfr：Microchip Technology
- Package：Tube
- Core Processor：AVR
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：I2C, IrDA, LINbus, RS-485, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：22
- 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 19x12b SAR; D/A 1x10b
- Oscillator Type：External, Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：28-VQFN (4x4)
- Package / Case：28-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The AVR16DD28-E/STX is an 8-bit microcontroller from the AVR DD Family, featuring a 16 KB Flash memory, 2 KB SRAM, and 256 B EEPROM. It operates at clock speeds up to 24 MHz with a supply voltage range of 1.8 V to 5.5 V. The device includes a 12-bit ADC with 19 channels, a 10-bit DAC, two USARTs, SPI, TWI/I2C interfaces, and Multi-Voltage I/O (MVIO). It utilizes a VQFN-28 package and supports an extended temperature range of -40°C to +125°C.
Feature Summary
- Multi-Voltage I/O (MVIO) capability on PORT C for flexible voltage level interfacing
- Integrated Event System for CPU-independent peripheral signaling
- Configurable Custom Logic (CCL) with four Look-up Tables (LUTs)
- Single-pin Unified Program and Debug Interface (UPDI)
Applications
- Industrial control systems requiring multi-voltage operation
- Home appliance controllers
- Automotive embedded applications
- IoT sensor nodes
Procurement Notes
Verify the ordering suffix 'E' confirms the extended temperature rating (-40°C to +125°C) and 'STX' specifies the VQFN-28 package. Confirm that the base model corresponds to the 16 KB Flash variant within the AVR DD family. Ensure compatibility with existing design layouts for the specified package style.
Selection Notes
Select this component when 16 KB of program memory is sufficient for the application logic. The extended temperature grade is required for environments exceeding standard industrial limits. The VQFN-28 package offers a compact footprint suitable for space-constrained designs compared to larger pin-count variants.
Part Context
This part belongs to the AVR DD Family, which provides vertical migration compatibility with higher memory devices like the AVR32DD28 and AVR64DD28 without code modification. It shares the same pinout and peripheral features as these siblings, differing primarily in Flash and SRAM capacity.
Replacement Considerations
AVR16DD28T-E/SS
FAQ
What is the maximum operating frequency of the AVR16DD28-E/STX?
The device runs at clock speeds up to 24 MHz.
Does this microcontroller support simultaneous host and client operation on its I2C interface?
Yes, the TWI/I2C interface supports dual mode, allowing simultaneous host and client operation on different pins.
How many general-purpose I/O pins are available on this 28-pin device?
The device provides up to 23 or 26 programmable I/O pins depending on the specific configuration and pin usage.
