AVR128DA28-I/SO

$1.45

Description：IC MCU 8BIT 128KB FLASH 28SOIC
Series：AVR® DA
Mfr：Microchip Technology
Package：Tube
Core Processor：AVR

SKU:b42b1498f7da Category: Microcontrollers Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC MCU 8BIT 128KB FLASH 28SOIC
Series：AVR® DA
Mfr：Microchip Technology
Package：Tube
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：512 x 8
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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AVR128DA28-I/SO

Overview

The AVR128DA28-I/SO is an 8-bit microcontroller from the AVR® DA family, featuring a 24 MHz CPU with hardware multiplier. It includes 128 KB Flash, 16 KB SRAM, and 512 B EEPROM. The device provides 23 I/O pins in a 28-pin SOIC package. Peripherals include a 12-bit ADC, 10-bit DAC, three analog comparators, three zero-cross detectors, and a Peripheral Touch Controller.

Feature Summary

Integrates intelligent analog features including a 12-bit differential ADC, 10-bit DAC, and multiple voltage references for signal conditioning.
Supports capacitive touch applications via the Peripheral Touch Controller (PTC) with Driven Shield+ technology.
Features an Event System for CPU-independent inter-peripheral signaling to improve processing efficiency.
Includes a single-pin Unified Program and Debug Interface (UPDI) for simplified programming and debugging.

Applications

Industrial control systems requiring multi-voltage I/O
Smart home and building automation devices
Consumer appliances with touch interface capabilities
Energy monitoring and metering equipment

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing design constraints regarding pinout and memory allocation. Cross-reference datasheet revision history for any errata or functional clarifications relevant to production implementation.

Selection Notes

Select this component when vertical migration within the AVR® DA family is required without code modification. Consider the 28-pin form factor for space-constrained designs needing 128 KB of program memory. Evaluate the peripheral count against application requirements for timers, communication interfaces, and analog channels.

Part Context

This part belongs to the AVR® DA family, which offers horizontal and vertical migration paths. It shares architectural similarities with other DA series devices but is distinguished by its 28-pin configuration and 128 KB Flash capacity. The 'I' suffix denotes industrial temperature range operation.