STMicroelectronics STEVAL-IFS012V1

Overview

STEVAL-IFS012V1 from STMicroelectronics is a multi-device temperature sensor demonstration kit comprising an ST72F651AR6 microcontroller-based motherboard and two pre-mounted daughterboards (STEVAL-IFS012V3 with STLM20 UDFN, STEVAL-IFS012V5 with STTS75 SO8), supporting up to six digital/analog temperature sensors via I²C and analog inputs. It operates in standalone (8–20 V external) or USB-powered mass-storage GUI mode for real-time sensor evaluation in thermal monitoring systems.

For engineers reviewing the STEVAL-IFS012V1 datasheet, STEVAL-IFS012V1 pinout, STEVAL-IFS012V1 application, or STEVAL-IFS012V1 equivalent, this kit enables rapid validation of ST's temperature sensing ecosystem-including STLM20, STTS75, STDS75, STLM75, STCN75, and STTS424E02-across dual power modes, LCD interface, RTC, and NAND flash data logging.

Technical Context

The motherboard integrates the ST72F651AR6 8-bit MCU with USB device interface, 64-pin LQFP package, internal 12 MHz oscillator, and hardware I²C (PF0/PF1), SPI (PC1–PC3), and 8-channel 10-bit ADC (PF2–PF4, PD6–PD7, PE0–PE3). It hosts dedicated sensor interface headers supporting hot-swappable daughterboards with independent I²C addressing and alert signaling.

System-level functionality includes graphic LCD (122×32) with contrast control, RTC powered by 3 V button cell (M41T81S), 512 Mbit NAND flash (NAND512W3A), and dual power regulation: 5 V from USB or external jack, plus 3.3 V/2.5 V/1.8 V selectable rails via voltage translator and LD29080/L78M05CV regulators.

Key Specifications

Availability

STEVAL-IFS012V1 is available at Aetrix Electronics and suitable for thermal test benches, HVAC sensor validation, industrial equipment qualification, and embedded temperature algorithm development requiring stable component supply and documented reference hardware.

Supply support for STEVAL-IFS012V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, sensors, power ICs, and analog/mixed-signal devices for industrial, automotive, and consumer applications.

The STEVAL-IFS012V1 belongs to ST's STEVAL evaluation kit product line, engineered to accelerate prototyping and validation of ST's temperature sensing portfolio-including digital I²C sensors and analog output devices-within unified MCU-based platforms.

FAQ

What daughterboards are included with the STEVAL-IFS012V1 kit?

The kit ships with two daughterboards: STEVAL-IFS012V3 (STLM20 in UDFN-6 package) and STEVAL-IFS012V5 (STTS75 in SO8 package). Both connect via standardized 20-pin headers and are individually orderable for system expansion or replacement.

How does the USB mass-storage mode function?

When powered via USB, the ST72F651AR6 enumerates as a USB Mass Storage Class (MSC) device. Sensor readings and configuration data are written to the onboard NAND flash and appear as a removable drive on Windows/macOS/Linux, enabling direct file-based data access without custom drivers.

Can the STEVAL-IFS012V1 operate without a PC connection?

Yes. In standalone mode, it accepts 8–20 V DC input via the barrel jack, powers the LCD and MCU, and displays real-time temperature values from connected sensors. RTC continues operation using the 3 V button cell, and NAND flash retains logged data independently of USB presence.

Which temperature sensors are supported beyond the included ones?

In addition to the STLM20 and STTS75 on board, the motherboard supports STDS75, STLM75, STCN75, and STTS424E02-all I²C-compatible digital sensors-and allows analog temperature measurement via the STLM20's voltage output on AIN7. Each requires its corresponding daughterboard (e.g., STEVAL-IFS012V2 for STDS75).