I3C I/O Library

The I3C library provides a bi-directional I/O driver designed for the I3C two-line interface. It is compliant with the MIPI Specification for I3C –Version 1.1, 27 Novenber 2019.
The design supports the IC3 push-pull and open-drain modes as well as legacy Fm and Fm+ open-drain modes at the bus operating voltages of 1.2V and 1.8V.
This 5nm library is available in an inline flip chip implementation.
To design a functional I/O power domain with this cell, an additional library is required – 1.8V Support: Power. That library contains isolated analog I/O, and a full complement of power cells along with spacer cells to assemble a complete pad ring by abutment. An included rail splitter allows multiple power domains to be isolated in the same pad ring while

• Supported I3C operating modes:
  • I3C push-pull mode – up to 12.5 MHz
  • I3C open-drain mode – up to 12.5 Mbps data rate
  • Legacy Fast mode (Fm) – up to 400 Kbps data rate
  • Legacy Fast mode (Fm+) – up to 1.0 Mbps data rate
  • Output enable and mode select
  • Receiver enable
  • Standard LVCMOS compatible input with optional Schmitt trigger (hysteresis)
  • ESD protection is accomplished with stacked NMOS breakdown devices
  • Power-on sequencing independent design with Power-On Control
  • DVDD = 1.2V or 1.8V
  • Pad VDDP (open-drain) = 1.65V to 1.95V or 1.20V to 1.30V – independent of DVDD
  • The circuit consumes no DC supply current in the static state in the open-drain modes
  • Fault-tolerant to 1.98V at PAD (no current flow when DVDD = 0V)
• In open-drain modes, this cell requires a pull-up to a high voltage power supply (VDDP). The sizing of an external resistor or appropriate pull-up network is application dependent.

• Physical abstract in LEF format (.lef)
• Timing models in Synopsys Liberty formats (.lib and .db)
• Calibre compatible LVS netlist in CDL format (.cdl)
• GDSII stream (.gds)
• Behavioral Verilog (.v)
• Layout Parasitic Extraction (LPE) SPICE netlist (.spice)
• Databook (.pdf)
• Library User Guide - ESD Guidelines (.pdf)