ATTINY1634-MU

$1.07

Description：IC MCU 8BIT 16KB FLASH 20QFN
Series：AVR® ATtiny
Mfr：Microchip Technology
Package：Tray
Core Processor：AVR

SKU:7fb5543c46c1 Category: Microcontrollers Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC MCU 8BIT 16KB FLASH 20QFN
Series：AVR® ATtiny
Mfr：Microchip Technology
Package：Tray
Core Processor：AVR
Core Size：8-Bit
Speed：12MHz
Connectivity：I2C, SPI, UART/USART, USI
Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O：18
Program Memory Size：16KB (16K x 8)
Program Memory Type：FLASH
EEPROM Size：256 x 8
RAM Size：1K x 8
Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
Data Converters：A/D 12x10b
Oscillator Type：Internal
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Supplier Device Package：20-QFN-EP (4x4)
Package / Case：20-WFQFN Exposed Pad
Grade：-
Qualification：-

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ATTINY1634-MU

Overview

The ATtiny1634-MU is an 8-bit AVR microcontroller in a 20-pad QFN/MLF package. It features 16 kB of self-programmable Flash, 1 kB of SRAM, and 256 bytes of EEPROM. The device operates at speeds up to 12 MHz within the 4.5 V to 5.5 V supply range. It includes two USARTs, a slave I2C interface, a USI, a 10-bit ADC with 12 external channels, and dedicated hardware support for capacitive touch sensing.

Feature Summary

Supports capacitive touch sensing via dedicated hardware and QTouch library integration
Features dual full-duplex USARTs equipped with start frame detection capabilities
Includes calibrated internal oscillators for both high-speed and ultra-low power applications

Applications

Capacitive touch sensor interfaces
Industrial communication systems requiring dual serial links
Battery-powered devices utilizing low-power sleep modes

Procurement Notes

Verify the specific speed grade suffix (e.g., -MU) matches the required operating voltage and frequency constraints. Confirm the MLF package dimensions align with PCB footprint requirements. Ensure the industrial temperature range (-40°C to +85°C) meets environmental specifications. Check for any silicon errata regarding ULP oscillator usage if PB3 is utilized as an input.

Selection Notes

Select this component when dual independent UART connections are necessary alongside analog signal acquisition. The integrated touch sensing hardware reduces CPU load compared to software-based solutions. Consider the extended temperature variant (-MN) if operation exceeds standard industrial limits. Evaluate power consumption profiles across different sleep modes for battery efficiency.

Part Context

This part belongs to the tinyAVR family, designed for cost-sensitive embedded applications. It utilizes the enhanced RISC architecture to achieve high throughput per megahertz. The MLF package provides a compact form factor suitable for space-constrained designs while maintaining robust thermal performance through the exposed pad.