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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Tape & Reel (TR) | NULL
Core Processor AVR
Core Size 8-Bit
Speed 12MHz
Connectivity UART/USART
Peripherals POR, PWM, WDT
Number of I/O 6
Program Memory Size 1KB (1K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 32 x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 5x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 8-UDFN (2x3)
Package / Case 8-UFDFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATTINY102-M8R is an 8-bit AVR microcontroller in a space-saving 8-UFDFN package with exposed pad. It operates from 1.8V to 5.5V at speeds up to 12MHz, featuring 1KB flash and 32 bytes RAM. Integrated PWM, Power-on Reset, and Watchdog Timer provide robust control in compact designs. Its extended temperature range makes it suitable for automotive and industrial applications.

  • Exposed pad enhances thermal dissipation for high-current PWM loads.
  • Ultra-small UFDFN package fits in miniaturized IoT devices.
  • 1.8V minimum supply supports single-cell coin battery operation.
  • Integrated WDT and POR reduce external supervision circuitry.

Wearable Fitness Devices

The tiny UFDFN package and 1.8V operation enable ultra-thin, battery-efficient step counters.

Automotive Sensor Modules

Exposed pad aids heat dissipation in exhaust temperature monitoring circuits rated to 125°C.

Smart Home Thermostats

PWM drives heating elements while WDT ensures failsafe operation during firmware hangs.

Industrial Vibration Monitors

12MHz speed processes accelerometer data in real-time for predictive maintenance.

Portable Instrumentation

1KB flash stores calibration constants, while low power extends field operation.

Security Key Fobs

Compact footprint fits in slim enclosures with reliable POR for instant wake-up.

Q: What package does this use?
A: It comes in an 8-UFDFN package with exposed pad for improved thermal performance.
Q: What is the voltage range?
A: It operates from 1.8V to 5.5V, compatible with standard digital supplies.
Q: Does it have PWM?
A: Yes, it includes PWM channels suitable for dimming and motor control.
Q: What is the temperature range?
A: It is rated for -40°C to 125°C, suitable for harsh environments.
Base Product Number : ATTINY102
12MHz 1KB flash 8-bit MCU 8-UFDFN AVR compact industrial POR PWM WDT
Q: What package does this use?
A: It comes in an 8-UFDFN package with exposed pad for improved thermal performance.
Q: What is the voltage range?
A: It operates from 1.8V to 5.5V, compatible with standard digital supplies.
Q: Does it have PWM?
A: Yes, it includes PWM channels suitable for dimming and motor control.
Q: What is the temperature range?
A: It is rated for -40°C to 125°C, suitable for harsh environments.