Texas Instruments Unveils World’s Smallest Microcontroller

At Embedded World 2025, Texas Instruments announced the MSPM0C1104 microcontroller, which it claims is the world’s smallest. The device, measuring just 1.38 mm², is designed for medical wearables and miniature electronics.

The microcontroller is equipped with a 32-bit Arm Cortex-M0+ core with a clock frequency of up to 24 MHz. There is 1 KB of SRAM memory and up to 16 KB of flash memory. Support for 1×UART, 1×I2C, 1×SPI, 18×GPIO is implemented. There is an analog-to-digital converter (ADC) with support for up to ten external channels and a built-in temperature sensor.

The supply voltage can vary from 1.62 to 3.6 V. Various low-power modes are implemented: Run – 87 μA / MHz, Stop – 609 μA at 4 MHz or 311 μA at 32 kHz, as well as Standby – 5 μA with preservation of the SRAM memory contents. The operating temperature range extends from -40 to +125 °C. The Texas Instruments MSPM0C1104 microcontroller is available in the following versions:

DSBGA (YCJ) – 8 contacts, 1.6 × 0.861 mm (1.3776 mm2);

SOT-23-THN (DDF) – 8 contacts, 2.9 × 2.8 mm (8.12 mm2);

SOT-23-THN (DYY) – 16 contacts, 4.2 × 2 mm (8.4 mm2);

TSSOP (PW) — 20 contacts, 6.5×6.4 mm (41.6 mm2);

VSSOP (DGS) — 20 contacts, 5.1×4.9 mm (24.99 mm2);

WQFN (RUK) — 20 contacts, 3×3 mm (9 mm2);

WSON (DSG) — 8 contacts, 2×2 mm (4 mm2).

The manufacturer notes that MSPM0C1104 is especially useful in gadgets such as wireless headphones, medical probes, and other miniature devices. It is noted that in bulk purchases the price for a microcontroller will not exceed 20 cents.