AVR64DB28-I/SS

$1.39

Description：IC MCU 8BIT 64KB FLASH 28SSOP
Series：AVR® DB
Mfr：Microchip Technology
Package：Tube
Core Processor：AVR

SKU:f1331d76ece9 Category: Microcontrollers Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC MCU 8BIT 64KB FLASH 28SSOP
Series：AVR® DB
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：21
Program Memory Size：64KB (64K x 8)
Program Memory Type：FLASH
EEPROM Size：512 x 8
RAM Size：8K x 8
Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
Data Converters：A/D 9x12b; D/A 1x10b
Oscillator Type：Internal
Operating Temperature：-40°C ~ 85°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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AVR64DB28-I/SS

Overview

The AVR64DB28-I/SS is an 8-bit microcontroller from the AVR DB family, featuring a hardware multiplier CPU running at up to 24 MHz. It includes 64 KB of Flash memory, 8 KB of SRAM, and 512 bytes of EEPROM. The device provides 22 general-purpose I/O pins in a 28-pin SSOP package. Key peripherals include a 12-bit ADC with 13 channels, three analog comparators, one 10-bit DAC, three zero-cross detectors, and three op amps. Communication interfaces consist of two SPIs, one TWI/I2C, and three USARTs. Operating voltage ranges from 1.8 V to 5.5 V, with an industrial temperature range of -40°C to +85°C.

Feature Summary

Multi-Voltage I/O (MVIO) capability on Port C for flexible interface levels
Integrated Analog Signal Conditioning subsystem with op amps and internal resistor ladders
Configurable Custom Logic (CCL) utilizing Look-up Tables for hardware logic implementation
Event System enabling CPU-independent peripheral signaling

Applications

Industrial control systems requiring robust analog signal processing
Power management applications utilizing zero-cross detection
Embedded devices needing multi-voltage I/O interfacing
General-purpose automation controllers

Procurement Notes

Verify the specific ordering suffix 'I' confirms the industrial temperature range (-40°C to +85°C). Confirm the '/SS' suffix corresponds to the SSOP-28 package style required for your PCB layout. Ensure compatibility with the AVR DB family pinout if migrating from other variants within the series.

Selection Notes

Select this model when 64 KB of program memory and 8 KB of RAM are sufficient for the application. Choose this variant over higher-memory parts if cost or pin count optimization is prioritized. Verify that the 28-pin form factor accommodates the necessary 22 I/O lines and peripheral connections.

Part Context

This component belongs to the AVR64DB28/32/48/64 subset of the AVR DB family. These devices share vertical migration compatibility, allowing code reuse across different pin counts and memory sizes within the same family. The AVR64DB28 specifically offers the entry-level pin count for the 64 KB Flash tier.