AVR128DB64-I/MR Microchip Integrated Circuit (Quad Flat No-Lead) In Stock

Name: AVR128DB64-I/MR
Brand: Microchip
SKU: AVR128DB64-I/MR
Availability: InStock

Microchip AVR128DB64-I/MR is an 8-bit AVR microcontroller with 128KB Flash, 24 MHz clock, 12-bit ADC, integrated op-amps, DAC, and Multi-Voltage I/O (MVIO). Includes UART, SPI, and TWI interfaces plus zero-cross detection in a 64-pin QFN package. Available from stock worldwide.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

AVR128DB64-I/MRQuad Flat No-Lead

Quick Facts

Manufacturer: Microchip
Package: Quad Flat No-Lead
Pin Count: 64
Lifecycle: ACTIVE
Datasheet: AVR128DB64-I/MR Datasheet PDF
Category: Integrated Circuit
Price: From $1.7800(MOQ 1)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of AVR128DB64-I/MR?

Multi-Voltage I/O (MVIO) allows direct interfacing with 1.8V, 3.3V, and 5V logic domains without external level shifters
Integrated analog peripherals including 12-bit ADC, DAC, op-amps, comparator, and Zero-Cross Detector (ZCD) for signal conditioning on-chip
128KB Flash program memory with 24 MHz AVR core in a compact 64-pin QFN package for high-density mixed-signal embedded designs

What is AVR128DB64-I/MR used for?

The AVR128DB64-I/MR is designed for mixed-signal embedded applications such as motor control, power conversion, and industrial sensor interfaces where on-chip analog peripherals like op-amps and a 12-bit ADC eliminate external signal-conditioning components. Its MVIO capability makes it ideal for multi-rail systems common in IoT gateways, smart meters, and building automation controllers that must communicate across 1.8V, 3.3V, and 5V domains simultaneously. The zero-cross detection and DAC also make this device well-suited for AC dimmer controls, audio signal generation, and precision closed-loop feedback systems.

What are the specifications of AVR128DB64-I/MR?

Manufacturer Package Code	QFN-64
Factory Lead Time	7Weeks
YTEOL	19
Has ADC	YES
Bit Size	8
Boundary Scan	NO
CPU Family	AVR
Clock Frequency-Max	24MHz
DAC Channels	YES
DMA Channels	NO
Format	FIXED POINT
Integrated Cache	NO
JESD-30 Code	S-PQCC-N64
JESD-609 Code	e3
Low Power Mode	YES
Number of External Interrupts	55
Number of I/O Lines	55
Number of Serial I/Os	6
Number of Timers	8
On Chip Data RAM Width	8
On Chip Program ROM Width	8
PWM Channels	YES
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	LCC64,.35SQ,20
Package Shape	SQUARE
Package Style	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
RAM (bytes)	16384
RAM (words)	16384
ROM (words)	131072
ROM Programmability	FLASH
Speed	24MHz
Supply Voltage-Max	5.5V
Supply Voltage-Min	3V
Supply Voltage-Nom	3V
Surface Mount	YES
Technology	CMOS
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn)
Terminal Form	NO LEAD
Terminal Pitch	0.5mm
Terminal Position	QUAD
uPs/uCs/Peripheral ICs Type	MICROCONTROLLER, RISC
## AVR128DB64-I/MR Alternates Showing results	Image
Package	Quad Flat No-Lead

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
HTS Code	8542.31.00.15
Country of Origin	Thailand

Where can I find the AVR128DB64-I/MR datasheet?

AVR128DB64-I/MR Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for AVR128DB64-I/MR?

Compatible alternatives and drop-in replacements for AVR128DB64-I/MR:

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AVR128DA64-I/MRMicrochip Technology Inc

RISC Microcontroller, 8-Bit, FLASH, AVR CPU, 24MHz, CMOS, PQCC64

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Frequently Asked Questions

How does the MVIO feature on the AVR128DB64-I/MR simplify designs with mixed 3.3V and 5V peripherals?

The AVR128DB64-I/MR Multi-Voltage I/O (MVIO) allows one port group to operate at a different voltage, typically 1.8V to 5.5V, enabling direct connections to both 3.3V sensors and 5V peripherals without external level-shift ICs, saving board space and component count.

What ADC resolution does the AVR128DB64-I/MR provide and how many input channels are available?

The AVR128DB64-I/MR features a 12-bit ADC with multiple input channels, delivering 4096 discrete steps per measurement. This precision is suitable for industrial sensor readings, battery voltage monitoring, and analog signal digitization in embedded control applications.

For a motor-control design at 24 MHz, does the AVR128DB64-I/MR include sufficient memory to run both application code and a real-time scheduler?

The AVR128DB64-I/MR provides 128KB Flash for program storage and 16KB SRAM for data, running at up to 24 MHz. This memory configuration comfortably accommodates a real-time scheduler alongside motor-control algorithms, PID loops, and communication stack code.

When would an AVR128DB64-I/MR be preferred over an AVR64DB64 in a power-metering application?

Designers choose the AVR128DB64-I/MR over the AVR64DB64 when firmware exceeds 64KB, such as in power-metering systems that combine a Modbus RTU stack with metrology algorithms and a local display driver. The doubled 128KB Flash removes the code-space constraint without changing the 64-pin QFN footprint.

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AvailabilityIn Stock

Reference Price (USD)

From $1.7800

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Qty.	Unit Price	Ext. Price
1+	$1.9770	$1.98
1000+	$1.8700	$1870.00
5000+	$1.7800	$8900.00

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OriginChina (Authorized)

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AVR128DB64-I/MR Microchip Integrated Circuit (Quad Flat No-Lead) In Stock

What are the key features of AVR128DB64-I/MR?

What is AVR128DB64-I/MR used for?

What are the specifications of AVR128DB64-I/MR?

Compliance & Regulatory

Where can I find the AVR128DB64-I/MR datasheet?

What are equivalent replacements for AVR128DB64-I/MR?

Frequently Asked Questions

How does the MVIO feature on the AVR128DB64-I/MR simplify designs with mixed 3.3V and 5V peripherals?

What ADC resolution does the AVR128DB64-I/MR provide and how many input channels are available?

For a motor-control design at 24 MHz, does the AVR128DB64-I/MR include sufficient memory to run both application code and a real-time scheduler?

When would an AVR128DB64-I/MR be preferred over an AVR64DB64 in a power-metering application?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

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About Microchip

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