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Product Detailed Parameters
- Description：16KB, 2KB SRAM, 24MHZ, USB, 10B
- Series：AVR® DU
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：AVR
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：I2C, IrDA, SMBus, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：14
- 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 11x10b
- Oscillator Type：External, 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 AVR16DU20T-I/REB is an 8-bit microcontroller from the AVR DU family, featuring a 16 KB Flash memory, 2 KB SRAM, and 256 B EEPROM. It operates at a maximum clock frequency of 24 MHz within a voltage range of 1.8 V to 5.5 V. The device includes a USB 2.0 full-speed interface, two USARTs, one SPI, and one TWI/I2C module. Analog capabilities consist of a 10-bit ADC with 11 channels and an analog comparator. It utilizes a 20-pin VQFN package and supports industrial temperature ranges.
Feature Summary
- Integrates a USB 2.0 full-speed device-compliant interface for communication applications.
- Features Program and Debug Interface Disable (PDID) to secure firmware against unauthorized access.
- Includes an Event System for CPU-independent inter-peripheral signaling to reduce software overhead.
- Supports read-while-write operations in Flash memory for continuous code execution during updates.
Applications
- USB-enabled peripheral devices
- Industrial control systems requiring secure firmware updates
- Battery-powered applications utilizing low-power sleep modes
- Data acquisition systems using the integrated ADC
Procurement Notes
Verify that the specific ordering suffix matches the required tape and reel packaging configuration. Confirm the temperature grade corresponds to the industrial specification range. Ensure the component revision aligns with the preliminary datasheet version referenced for design validation. Cross-reference pinout compatibility if migrating from other AVR series devices.
Selection Notes
Select this model when a balance of moderate Flash capacity and integrated USB connectivity is required. The 20-pin form factor suits space-constrained designs needing multiple serial interfaces. Consider the 10-bit ADC resolution for standard analog sensing tasks. Evaluate power consumption requirements against the available sleep modes for battery-operated implementations.
Part Context
This component belongs to the AVR DU family, which emphasizes vertical migration compatibility across different pin counts and memory sizes. The architecture integrates intelligent analog features and advanced digital peripherals. It shares core CPU and peripheral structures with larger variants like the AVR32DU20, allowing for scalable design transitions without significant code modifications.
Replacement Considerations
AVR32DU20T-I/REB offers increased memory while maintaining pin compatibility. AVR16DU20T-E/REB provides an extended temperature range for harsher environments. Verify electrical specifications and firmware compatibility before substituting with these alternatives.
