Microchip Technology ATTINY84A-MUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.05 | $1.05 |
| 15+ | $1.01 | $15.15 |
| 25+ | $0.99 | $24.75 |
| 50+ | $0.94 | $47.00 |
| 100+ | $0.83 | $83.00 |
| N+ | $0.17 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Number of I/O | 12 |
| Program Memory Size | 8KB (4K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-QFN-EP (4x4) |
| Package / Case | 20-WFQFN Exposed Pad |
| ROHS |
The Microchip ATTINY84A is a high-performance 8-bit AVR MCU in a compact 20-WFQFN package. It offers 8KB flash, 512B SRAM, and runs at up to 20MHz. Integrated features include a temperature sensor, PWM, and brown-out detection. Its 1.8V to 5.5V supply range makes it versatile for battery and industrial applications.
- Ultra-low voltage (1.8V) – extends battery life in portable devices.
- Integrated temperature sensor – eliminates external thermistor and calibration.
- 20MHz AVR core – handles complex algorithms faster than typical 8-bit MCUs.
- Exposed pad QFN – improves heat transfer for reliable high-current operation.
Wearable Health Monitors
The 1.8V operation and 512B RAM allow continuous biometric sampling with minimal power draw.
Industrial Sensor Nodes
Its 20MHz AVR core and 8KB flash process vibration or temperature data in factory automation.
Smart Agriculture Probes
With a temp sensor and WDT, it logs soil conditions over long periods in remote fields.
Battery Management Systems
The wide voltage range and PWM enable cell balancing and state-of-charge estimation.
Portable Instrumentation
Small QFN package and low sleep current make it perfect for handheld multimeters or calibrators.
IoT Endpoint Controllers
It pre-processes sensor data before sending to a radio, reducing wireless transmission time.
- Q: What is the program memory size of the ATTINY84A-MUR?
- A: It has 8KB of in-system programmable flash (4K x 16 bits).
- Q: Does this MCU have a temperature sensor?
- A: Yes, it includes an internal temperature sensor for monitoring.
- Q: What is the package type?
- A: It is a 20-WFQFN with exposed pad for thermal dissipation.
- Q: What voltage does it require?
- A: It operates from 1.8V to 5.5V, supporting low-power and standard logic.
- Q: What is the program memory size of the ATTINY84A-MUR?
- A: It has 8KB of in-system programmable flash (4K x 16 bits).
- Q: Does this MCU have a temperature sensor?
- A: Yes, it includes an internal temperature sensor for monitoring.
- Q: What is the package type?
- A: It is a 20-WFQFN with exposed pad for thermal dissipation.
- Q: What voltage does it require?
- A: It operates from 1.8V to 5.5V, supporting low-power and standard logic.

ATTINY84A-MUR.pdf