ATTINY861A-MU Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The ATTINY861A-MU is an 8-bit AVR RISC microcontroller from Microchip in a compact 32-pin QFN package, running up to 20 MHz with built-in ADC and low-voltage operation down to 1.8 V. It offers versatile peripheral support for embedded control and sensor interface applications. Available from authorized distributors globally with in-stock inventory and worldwide shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Datasheet
- ATTINY861A-MU Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1200(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
- 8-bit AVR RISC CPU running up to 20 MHz with low-voltage operation from 1.8 V minimum supply at 4 MHz
- Built-in ADC for direct analog signal acquisition without external conversion hardware
- Ultra-compact 32-pin QFN package (5x5 mm, 0.5 mm pitch) enabling high-density PCB integration
Applications
The ATTINY861A-MU is ideal for low-power embedded control applications such as sensor nodes, battery-operated instruments, and motor control interfaces. Its 1.8 V minimum operating voltage makes it well-suited for energy-harvesting and coin-cell powered designs. The built-in ADC and AVR instruction set make it a cost-effective solution for smart home devices, wearables, and industrial automation controllers.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | VQFN-32 |
| Factory Lead Time | 8Weeks |
| YTEOL | 14 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 1.8V MINIMUM SUPPLY AT 4 MHZ; AND 2.7V MINIMUM SUPPLY AT 10 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | AVR RISC |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FLOATING-POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-XQCC-N32 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of I/O Lines | 16 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC32,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 512 |
| ROM (words) | 8192 |
| ROM Programmability | FLASH |
| Speed | 20MHz |
| Supply Current-Max | 7mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ATTINY861A-MU:
Frequently Asked Questions
What is the maximum clock frequency and minimum operating voltage of the ATTINY861A-MU?
The ATTINY861A-MU operates at up to 20 MHz clock frequency. It can run at a minimum supply voltage of 1.8 V at 4 MHz, or 2.7 V minimum at 10 MHz, making it highly flexible for low-power embedded designs.
Does the ATTINY861A-MU have an analog-to-digital converter?
Yes, the ATTINY861A-MU includes a built-in ADC, allowing it to directly interface with analog sensors without requiring external ADC components. This simplifies circuit design and reduces overall BOM cost in sensor-based applications.
What package does the ATTINY861A-MU use and what are its dimensions?
The ATTINY861A-MU comes in a 32-pin QFN (Quad Flat No-Lead) package measuring 5 x 5 mm with a 1 mm height and 0.50 mm pitch. It uses the MO-220VHHD-2 package standard and is lead-free (Pb-free).
What CPU architecture does the ATTINY861A-MU use?
The ATTINY861A-MU is based on an 8-bit AVR RISC architecture, offering efficient instruction execution and low power consumption. The AVR core is widely supported by development tools, making firmware development straightforward for embedded engineers.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.6600 | $1.66 |
| 5+ | $1.6480 | $8.24 |
| 20+ | $1.2677 | $25.35 |
| 2940+ | $1.1400 | $3351.60 |
| 5390+ | $1.1300 | $6090.70 |
| 7840+ | $1.1200 | $8780.80 |
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