3.3V Wide-Range General Purpose I/O Pad Set

Overview

The 3.3V General Purpose I/O library provides bidirectional I/O, isolated analog I/O, and a full complement of power cells along with corner and 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 maintaining continuous VDD/VSS for robust ESD protection.

* Programmable bidirectional GPIO
* Fault-tolerant programmable bidirectional GPIO
* Input-only buffer
* Isolated analog I/O
* Full complement of power, corner, and spacer cells

ESD Protection:
* JEDEC compliant
* 2KV ESD Human Body Model (HBM)
* 200 V ESD Machine Model (MM)
* 500 V ESD Charge Device Model (CDM)
Latch-up Immunity:
* JEDEC compliant
* Tested to I-Test criteria of ± 100mA @ 125°C

Key Features

  • Multi-Voltage (1.2V, 1.5V, 1.8V)
  • LVCMOS / LVTTL input with selectable hysteresis
  • Programmable drive strength (rated 2mA to 12mA)
  • Selectable output slew rate
  • Optimized for EMC with SSO factor of 8
  • Open-drain output mode
  • Programmable input options (pull-up/pull-down/repeater)
  • Power-On Start (POS) capable
  • Power sequencing independent design with Power-On Control
  • In full-drive mode, this driver can operate to frequencies in excess of 100MHz with 15pF external load and 125 MHz with 10pF load.
  • Actual frequency limits are load and system dependent. A maximum of 200 MHz can be achieved under small capacitive loads.

Deliverables

  • 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)

Technical Specifications

Foundry, Node
SMIC 28nm
Maturity
Pre-Silicon
Availability
Available Now
SMIC
Silicon Proven: 40nm LL
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Semiconductor IP