This specific IP macro is designed in TSMC 65nm LP and is available using either 3.3V or 2.5V I/O transistors. The 2.5V transistor option supports 3.3V VDDIO operation. Core supply VDD is 1.2V, with supported I/O modes from 1.8V to 3.3V. It can be ported to other technologies upon request using Sofics in-house design tool flow.
Sofics Datasheets – [DS-TS65N-3V3-GPIO] | [DS-TS65N-3V3-GPIO-2V5]
Key Highlights
- Broad portfolio of IO configurations from a single base architecture
- Modular design enables fast and reliable turnaround and low NRE
- Proven across multiple advanced nodes
- Optimized for performance, power, and area trade-offs
Details
| Parameter | Value |
|---|---|
| VDD | 1.2V ±10% |
| VDDIO | 3.3V ±10%; 1.8V selectable mode |
| Temperature Tj | -40C to 125C |
Key Features
| Parameter | Value |
|---|---|
| I/O transistors | 3.3V or 2.5V I/O transistor option |
| Maximum bit rate | 3.3V: 50MHz with 40pF 1.8V: 208MHz with 21pF (other options available) |
| Drive strength | 2 / 4 / 8 / 10 / 12 / 16mA (other options available) |
| ESD robustness | 2kV HBM | 500V CDM (standard) |
Summary
Sofics specialty I/Os offer configurable GPIOs with multi-voltage support, over-voltage tolerance (OVT), and high-speed or ultra-low-power modes. Designed for advanced nodes, they enable reliable interfacing between low-voltage cores and higher-voltage or legacy systems.
An integrated voltage regulator ensures stable operation across wide voltage ranges, for auxiliary supply domains, supporting multi-voltage and OVT functionality without external components.
Pin Schematic
Features
- Overvoltage tolerant design
- Supports multiple supply voltages
- Fail-safe
- Schmitt Trigger available with the 2.5V I/O transistor option
- Input enable/disable
- Tri-state output
- Pull select | Pull-up/Pull-down
- Compatible with TSMC I/O ring
- Integrated 1.8V voltage regulator in 3.3V operation available with the 2.5V I/O transistor option; external supply available as an option
- Other analog features such as SD, SIM, eMMC, I2C, I3C, SPI, UART, JTAG, PWM, WDT, slew rate control, drive strength options/control and more
Sofics offers a broad portfolio of configurable specialty I/Os enabling flexible integration across multiple voltage domains and applications. Explore our specialty GPIO circuits and TSMC IP solutions. Additional variants and features can be supported upon request, allowing fast customization through minimal design changes. For more information, visit www.sofics.com or contact us at bd@sofics.com.
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