STMicroelectronics FC30TR

Overview

FC30TR from STMicroelectronics is a standalone MEMS-based 3D orientation and mechanical tap detection sensor in LGA-14 (3×5×0.9 mm) package. It detects six gravity-referenced orientations (portrait/landscape/face up/down), delivers dedicated interrupt outputs (PC, LC, SIGN), supports programmable single/double-click detection, and operates from 2.16–3.6 V with 0.4 mA typical supply current at 25 °C for mobile UI and image rotation applications.

For engineers reviewing the FC30TR datasheet, FC30TR pinout, FC30TR application, or FC30TR equivalent, key selection criteria include orientation accuracy (±3°), ultra-low power-down current (1 µA), interrupt-driven wake-up capability, post-assembly testability without motion, and compatibility with automated SMT assembly using tape-and-reel packaging.

Technical Context

The FC30TR implements a fully integrated MEMS sensing element with on-chip signal conditioning and digital logic to determine static orientation relative to gravity across three orthogonal axes. Its output consists of three dedicated open-drain interrupt lines-PC (portrait), LC (landscape), and SIGN (combined orientation)-each driven high when their respective condition is met.

Tap detection is implemented via internal acceleration thresholding and timing logic, enabling configurable single- and double-tap recognition with programmable inter-click interval. Power management is hardware-controlled via the PD pin, forcing full shutdown (1 µA) when pulled low, with 30 ms turn-on time to valid orientation data after exit.

Key Specifications

Pinout & Package

LGA-14 (3×5×0.9 mm) plastic full-moulded package with exposed pad; RoHS, ECOPACK®, and halogen-free compliant; hermetically sealed for post-reflow washability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3D orientation and tap detection applications.

Compared with LIS3DHTR and BMA253, the FC30TR delivers immediate orientation state via hardware-generated interrupts-reducing host processing overhead and firmware complexity-while offering superior shock survivability (10,000 g) and guaranteed post-assembly testability without motion.

Availability

FC30TR is available at Aetrix Electronics and suitable for smartphone auto-rotate, digital photo frame orientation, and motion-triggered wake-up applications requiring stable component supply, full tape-and-reel delivery, and long-term production continuity.

Supply support for FC30TR 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, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and analog components for automotive, industrial, and consumer markets.

The FC30TR belongs to ST's MEMS motion sensor product line, engineered specifically for ultra-low-power, interrupt-driven human interface applications where mechanical simplicity, reliability, and minimal host processing are critical design requirements.

FAQ

What is the difference between FC30TR and FC30?

The FC30TR is the tape-and-reel packaging variant of the FC30, identical in electrical and functional specifications. Both share the same LGA-14 package, −40 °C to +85 °C rating, and interrupt-driven orientation/tap detection behavior. The "TR" suffix denotes packaging format only-not a revision or performance variant-and is optimized for automated SMT assembly.

Can FC30TR detect orientation while moving?

No-the FC30TR is designed exclusively for static orientation detection relative to gravity and does not provide dynamic motion data. Its six-position output assumes steady-state conditions; acceleration during movement invalidates orientation interpretation. For motion tracking, a 3-axis accelerometer like LIS3DHTR is required instead.

How is tap detection configured on FC30TR?

Tap detection is factory-configured and non-programmable via pins or registers. Sensitivity and double-tap timing are fixed at design time; users select behavior solely through hardware connections (e.g., pull-up/pull-down on PD). No I²C/SPI interface exists-configuration is limited to power mode (PD pin) and output polarity (external pull-ups).

Is FC30TR compatible with lead-free reflow processes?

Yes-FC30TR uses an ECOPACK®-compliant LGA-14 package rated for standard lead-free reflow profiles (J-STD-020). Its hermetic molding allows post-reflow washing, and the package withstands peak temperatures up to 260 °C for ≤60 seconds, meeting IPC-A-610 Class 2 and Class 3 assembly requirements.