AVR128DB28T-I/SO

$1.57

Description：IC MCU 8BIT 128KB FLASH 28SOIC
Series：AVR® DB
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)
Core Processor：AVR

SKU:f74b4bc1e955 Category: Microcontrollers Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC MCU 8BIT 128KB FLASH 28SOIC
Series：AVR® DB
Mfr：Microchip Technology
Package：Tape & Reel (TR),Cut Tape (CT)
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 ~ 85°C (TA)
Mounting Type：Surface Mount
Supplier Device Package：28-SOIC
Package / Case：28-SOIC (0.295", 7.50mm Width)
Grade：-
Qualification：-

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AVR128DB28T-I/SO

Overview

The AVR128DB28T-I/SO is an 8-bit microcontroller from the AVR DB family, featuring a hardware multiplier CPU running at up to 24 MHz. It includes 128 KB of Flash memory, 16 KB of SRAM, and 512 bytes of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40°C to +85°C. Key peripherals include a 12-bit ADC with 10 channels, a 10-bit DAC, three analog comparators, and multiple communication interfaces such as SPI, TWI/I2C, and USART.

Feature Summary

Features Multi-Voltage I/O (MVIO) on Port C for flexible interface compatibility.
Includes an Analog Signal Conditioning subsystem with op amps and internal resistor ladders.
Supports CPU-independent inter-peripheral signaling via the Event System.
Provides automated cyclic redundancy check (CRC) scanning for program memory verification.

Applications

Industrial control systems requiring robust signal conditioning
Battery-powered devices utilizing low-power architecture
Applications needing multi-voltage logic level interfacing

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging configuration when ordering. Confirm that the '-I' designation aligns with the required industrial temperature range specifications for your deployment environment. Ensure the SOIC-28 package dimensions match your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this model when 128 KB of Flash memory is necessary for complex firmware applications. Choose this variant over lower-memory parts if full vertical migration within the AVR DB family is planned without code modification. Consider the 28-pin constraint against the available peripheral count to ensure sufficient I/O availability.

Part Context

This component belongs to the AVR128DB series, which shares pin and feature compatibility across different memory sizes. It utilizes the Unified Program and Debug Interface (UPDI) for programming and debugging. The device integrates advanced digital peripherals and accurate analog subsystems typical of the modern AVR DB architecture.