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Certus Semiconductor Digital I/O Library IP

The Digital I/O page reviewed on 12 November 2026 states Certus offers numerous Digital I/O libraries for project-specific needs, including a Multitool specialty circuit covering many GPIO/ODIO standards and off-the-shelf libraries with extreme-voltage and ESD features not available in foundry IP.

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Overview

The official Digital I/O page describes multi-voltage GPIO, I2C open-drain, and LVDS TX/RX offerings beyond foundry baseline IP.

GPIO section lists 1.8 V, 3.3 V, and switchable 1.8/2.5/3.3/5 V GPIO solutions with features such as ultra-low power/low leakage, multiple drive strengths, analog test point, OTP, extreme ESD protection, and rad-hard options; standards named include eMMC, RGMII, ONFI, LPDDR, plus advanced libraries with 1.8/2.5/3.3 V RGMII-compliant IO. ODIO section describes I2C open-drain IO up to 3.3–5 V tolerant supporting Fast Mode (400 kbps) and Fast Mode+ (1 Mbps), compatible with the Certus GPIO library and compliant with I2C, SMBUS, DDC, CEC, and HPD. High Speed Differential section lists LVDS TX/RX cells with OE/IE, built-in 100 Ω RX termination, fault-safe mode, and MIPI-compliant SLVS IOs in development. Digital I/O brochure download is offered; silicon IP navigation also points to TSMC, GlobalFoundries, Samsung, Dongbu HiTek, UMC, Tower, and Skywater IP collections.

Technical capabilities

  • Published as design IP

    Licensable semiconductor IP. This listing is not a finished controller chip.

  • Finder function

    GPIO / ODIO / LVDS I/O library

  • Numbered specification: 1.2/1.5/1.8/2.5/3.3/5 V GPIO families

    1.2/1.5/1.8/2.5/3.3/5 V GPIO families is named for this product on the reviewed page.

  • Numbered specification: I2C ODIO Fast/Fast+

    I2C ODIO Fast/Fast+ is named for this product on the reviewed page.

  • Recorded aliases

    Certus Digital I/O; Certus GPIO/ODIO; Certus LVDS I/O

Lifecycle and categories

Solution categories
Standard Cells & I/O
Supported versions
1.2/1.5/1.8/2.5/3.3/5 V GPIO families; I2C ODIO Fast/Fast+; LVDS TX/RX (SLVS in development)
Compatibility
Multi-foundry library collections named (TSMC, GF, Samsung, UMC, Tower, Skywater, etc.). Source

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Sofics Specialty I/O and ESD Protection IP

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Sofics Specialty I/O and ESD protection IP is licensable mixed-signal I/O IP. The official site describes silicon-proven specialty I/Os and ESD circuits on standard processes, with published datasheet examples for TSMC/Samsung advanced-node GPIO and I2C/I3C interfaces.

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