STMicroelectronics STEVAL-IFS017V5

Overview

STEVAL-IFS017V5 from STMicroelectronics is a USB-powered temperature sensor daughter card built around the STTS751-1WB3F SOT-23-8 digital temperature sensor with integrated real-time clock (RTC), ±0.5°C accuracy over –25°C to +100°C, 12-bit resolution, and I²C interface. It mounts directly onto the STEVAL-IFS017V1 motherboard for multi-zone thermal monitoring in embedded industrial control systems.

For engineers reviewing the STEVAL-IFS017V5 datasheet, STEVAL-IFS017V5 pinout, STEVAL-IFS017V5 application, or STEVAL-IFS017V5 equivalent, this board enables rapid validation of STTS751-based thermal sensing with RTC synchronization, I²C address configuration via solder jumpers, and USB-hosted firmware interaction without external power supplies.

Technical Context

The STEVAL-IFS017V5 implements a plug-in daughter card architecture that interfaces exclusively via the STEVAL-IFS017V1 motherboard's 10-pin expansion header. It routes all STTS751 signals-including SDA, SCL, ALERT, and VDD-through direct trace connections, with no level-shifting or buffering.

USB power delivery (5 V) is regulated down to 3.3 V using an on-board LDO to supply the STTS751 and supporting circuitry. The board includes two configurable address jumpers (ADDR0/ADDR1) enabling up to four unique I²C addresses on a single bus, and a 0.1 µF decoupling capacitor at the STTS751 VDD pin per datasheet requirements.

Key Specifications

Availability

STEVAL-IFS017V5 is available at Aetrix Electronics and suitable for industrial thermal validation, embedded RTC integration testing, and multi-sensor platform prototyping requiring stable component supply and documented ST reference design compatibility.

Supply support for STEVAL-IFS017V5 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.

This board belongs to ST's STEVAL (ST Evaluation) family-reference designs intended for quick functional verification, firmware development, and system-level interoperability testing of ST sensor and timing ICs.

FAQ

Does STEVAL-IFS017V5 operate independently, or does it require a host board?

No, STEVAL-IFS017V5 cannot function standalone. It is a daughter card designed exclusively for mechanical and electrical integration with the STEVAL-IFS017V1 motherboard. All power, communication, and signal routing depend on that host platform's 10-pin expansion interface and firmware stack.

What is the role of the ADDR0 and ADDR1 jumpers on the board?

The ADDR0 and ADDR1 solder jumpers configure the STTS751's I²C slave address by setting bits A1 and A0. With both open, address = 0x48; shorting ADDR0 sets A0=1 (0x49); shorting ADDR1 sets A1=1 (0x4A); both shorted yields 0x4B-enabling up to four sensors on one I²C bus.

Can the onboard RTC be used without connecting to the STEVAL-IFS017V1 motherboard?

No. The RTC functionality requires initialization, time-setting, and readout via the host motherboard's microcontroller over I²C. The daughter card has no local processing, user interface, or independent timekeeping circuitry beyond the STTS751's internal registers.

Is STEVAL-IFS017V5 RoHS compliant and lead-free?

Yes. As stated in the official data brief (Doc ID 022859 Rev 1), the board is RoHS compliant and uses lead-free solder and components. The STTS751-1WB3F IC itself is also RoHS-compliant and qualified per JEDEC J-STD-020 moisture sensitivity level MSL3.