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Product Detailed Parameters
- Description：IC MCU 8BIT 128KB FLASH 28SSOP
- Series：AVR® DB
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- 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：23
- Program Memory Size：128KB (128K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：16K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 10x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：28-SSOP
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Grade：-
- Qualification：-
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Overview
The AVR128DB28T-E/SS is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz CPU, 128 KB Flash, 16 KB SRAM, and 512 B EEPROM. It includes a 12-bit ADC with 9 channels, three analog comparators, one 10-bit DAC, and up to three zero-cross detectors. The device supports I2C, SPI, and USART interfaces within a 28-pin SSOP package.
Feature Summary
- Multi-Voltage I/O (MVIO) on Port C for flexible voltage level interfacing
- Configurable Custom Logic (CCL) with Look-up Tables for hardware logic implementation
- Event System for CPU-independent peripheral signaling
- Automated CRC scan for Flash program memory verification
Applications
- Industrial control systems requiring signal conditioning
- Power monitoring applications utilizing zero-cross detection
- General-purpose embedded controllers with multi-voltage requirements
Procurement Notes
Verify the 'T' suffix indicates tape-and-reel packaging rather than tube packaging when ordering. Confirm the '-E' designation corresponds to the extended industrial temperature range of -40°C to +125°C. Ensure the specific revision matches the required datasheet version for accurate electrical characteristics.
Selection Notes
Select this variant for projects requiring high pin density in a 28-pin package. The AVR128DB series offers vertical migration compatibility within the family without code modification. Consider the Event System and CCL features if hardware offloading is necessary to reduce CPU load.
Part Context
This component belongs to the AVR DB family, which utilizes the latest Microchip technologies including low-power architecture and advanced analog subsystems. The family supports horizontal migration to lower pin counts and vertical migration to higher memory variants while maintaining pin and feature compatibility.
Replacement Considerations
AVR128DB28-I/SS
FAQ
What is the maximum operating frequency of the AVR128DB28T-E/SS?
The device runs at clock speeds up to 24 MHz.
Does the AVR128DB28T-E/SS support simultaneous master and slave operation?
Yes, the TWI/I2C interface can operate simultaneously as master and slave on different pins.
How many analog-to-digital converter channels are available?
The device features one 12-bit differential ADC with 9 channels.
