AVR128DB64-I/MR Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
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.
- 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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for AVR128DB64-I/MR:
suggested
suggested
suggested
suggested
suggested
suggested
suggested
RISC Microcontroller, 8-Bit, FLASH, AVR CPU, 24MHz, CMOS, PQCC64
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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.9770 | $1.98 |
| 1000+ | $1.8700 | $1870.00 |
| 5000+ | $1.7800 | $8900.00 |
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