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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Tube |
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 14-SOIC
Package / Case 14-SOIC (0.154", 3.90mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATTINY84A-SSU from Microchip Technology is a powerful 8-bit AVR microcontroller with 8KB of flash memory and 512 bytes of SRAM. Operating at up to 20MHz, it delivers high performance in a 14-SOIC package. With a supply range of 1.8V to 5.5V, it is versatile for both low-power and standard applications. The device integrates a temperature sensor, brown-out reset, power-on reset, PWM, and watchdog timer, making it an excellent choice for industrial control, smart agriculture, and portable medical devices.

  • 8KB flash provides ample space for complex firmware.
  • 512B SRAM supports larger data buffers and state machines.
  • 1.8V-5.5V operation enables flexible power design.
  • Integrated temperature sensor and reset features enhance system reliability.

Industrial Process Controllers

The 8KB flash and 20MHz speed allow complex control algorithms for temperature or pressure regulation in industrial equipment, with the SOIC package fitting standard PCBs.

Smart Agriculture Sensors

Its low power consumption and temperature sensor make it ideal for soil moisture and climate monitoring nodes in remote fields, powered by solar or batteries.

Home Automation Hubs

With ample memory and PWM, it can manage multiple sensor inputs and control relays in smart home systems, operating reliably across temperature ranges.

Medical Device Peripherals

The 1.8V operation and small footprint suit portable medical monitors like glucose meters or pulse oximeters, ensuring long battery life.

Automotive Sensor Interfaces

Its robust features and wide voltage range make it suitable for reading pressure or position sensors in automotive systems, withstanding harsh conditions.

Data Loggers

The 512B SRAM and low-power modes enable efficient data logging in environmental or energy monitoring devices, storing data over extended periods.

Q: What is the supply voltage range?
A: The ATTINY84A-SSU operates from 1.8V to 5.5V, supporting low-voltage and standard logic.
Q: What is the maximum clock speed?
A: It runs at up to 20MHz, offering fast processing for control applications.
Q: How much flash memory is available?
A: It has 8KB of flash (4K x 16-bit words) and 512 bytes of SRAM.
Q: What package does it use?
A: It comes in a 14-SOIC package (3.90mm width), suitable for surface-mount assembly.
Q: Does it include a temperature sensor?
A: Yes, it features an internal temperature sensor, brown-out reset, and watchdog timer.
Base Product Number : ATTINY84A
20MHz 512B SRAM 8-bit MCU 8KB Flash AVR Industrial Medical PWM SOIC-14 Temp Sensor WDT
Q: What is the supply voltage range?
A: The ATTINY84A-SSU operates from 1.8V to 5.5V, supporting low-voltage and standard logic.
Q: What is the maximum clock speed?
A: It runs at up to 20MHz, offering fast processing for control applications.
Q: How much flash memory is available?
A: It has 8KB of flash (4K x 16-bit words) and 512 bytes of SRAM.
Q: What package does it use?
A: It comes in a 14-SOIC package (3.90mm width), suitable for surface-mount assembly.
Q: Does it include a temperature sensor?
A: Yes, it features an internal temperature sensor, brown-out reset, and watchdog timer.