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LM8335

ACTIVE

General-Purpose Output Expander with MIPI RFFE Host Interface

Product details

Number of I/Os 8 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Addresses 2 Rating Catalog Frequency (max) (MHz) 26 Operating temperature range (°C) -30 to 85
Number of I/Os 8 Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 3.6 Addresses 2 Rating Catalog Frequency (max) (MHz) 26 Operating temperature range (°C) -30 to 85
DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25
  • MIPI RFFE Interface Version 1.10 Compliant
  • Supports Output Expansion
  • Host Interface Address Select Pin:
    • ADR=GND, USID[3:0]=0001
    • ADR=VDD, USID[3:0]=1001
  • Pin-Configurable Initial State: VIO
    • CFG=GND, GPO High-z, with Weak Internal Pull-Down Resistor Enabled; GPO_OUT_DATA is Unmasked
    • CFG=VDD, GPO High-z, with Weak Internal Pull-Down Resistor Enabled; GPO_OUT_DATA is Masked
  • Three Sources for Chip Reset:
    • VIO Input Pin
    • POR
    • Software-Commanded Reset

Key Specifications

  • 1.8 ± 0.15V MIPI RFFE Operation (VIO)
  • 1.8 ± 0.15V Core Supply (VDD)
  • 1.65 to 3.6V GPO Supply (VDDIO)
  • Low Standby and Active Current
  • On-Chip Power-On Reset (POR)
  • −30 to +85°C Ambient Temperature Range
  • 16-Bump DSBGA Package
    • 1.965 mm x 1.965 mm x 0.6 mm, 0.5 mm Pitch (Nominal)

All trademarks are the property of their respective owners.

  • MIPI RFFE Interface Version 1.10 Compliant
  • Supports Output Expansion
  • Host Interface Address Select Pin:
    • ADR=GND, USID[3:0]=0001
    • ADR=VDD, USID[3:0]=1001
  • Pin-Configurable Initial State: VIO
    • CFG=GND, GPO High-z, with Weak Internal Pull-Down Resistor Enabled; GPO_OUT_DATA is Unmasked
    • CFG=VDD, GPO High-z, with Weak Internal Pull-Down Resistor Enabled; GPO_OUT_DATA is Masked
  • Three Sources for Chip Reset:
    • VIO Input Pin
    • POR
    • Software-Commanded Reset

Key Specifications

  • 1.8 ± 0.15V MIPI RFFE Operation (VIO)
  • 1.8 ± 0.15V Core Supply (VDD)
  • 1.65 to 3.6V GPO Supply (VDDIO)
  • Low Standby and Active Current
  • On-Chip Power-On Reset (POR)
  • −30 to +85°C Ambient Temperature Range
  • 16-Bump DSBGA Package
    • 1.965 mm x 1.965 mm x 0.6 mm, 0.5 mm Pitch (Nominal)

All trademarks are the property of their respective owners.

The LM8335 General Purpose Output Expander is a dedicated device to provide flexible and general purpose, host programmable output expansion functions. This device communicates with a host processor through a MIPI® RFFE Interface (Mobile Industry Processor Interface RF Front-End).

Eight general purpose outputs (GPO) can be configured by the host controller as drive high/low/high-z. Weak pull-ups (PU) or weak pull-downs (PD) can be enabled.

Upon power-on, the LM8335 default configuration is for all GPO to be set based on the state of the CFG pin.

After startup, any changes to the default configuration must be sent from the host via the MIPI RFFE host interface..

The LM8335 is available in a 16-bump lead-free DSBGA package of size 1.965 mm x 1.965 mm x 0.6 mm (0.5 mm pitch).

The LM8335 General Purpose Output Expander is a dedicated device to provide flexible and general purpose, host programmable output expansion functions. This device communicates with a host processor through a MIPI® RFFE Interface (Mobile Industry Processor Interface RF Front-End).

Eight general purpose outputs (GPO) can be configured by the host controller as drive high/low/high-z. Weak pull-ups (PU) or weak pull-downs (PD) can be enabled.

Upon power-on, the LM8335 default configuration is for all GPO to be set based on the state of the CFG pin.

After startup, any changes to the default configuration must be sent from the host via the MIPI RFFE host interface..

The LM8335 is available in a 16-bump lead-free DSBGA package of size 1.965 mm x 1.965 mm x 0.6 mm (0.5 mm pitch).

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Technical documentation

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Type Title Date
* Data sheet LM8335 General-Purpose Output Expander with MIPI RFFE Host Interface datasheet (Rev. B) 02 May 2013
Application note Choosing the Correct I2C Device for New Designs PDF | HTML 07 Sep 2016
Application note Understanding the I2C Bus PDF | HTML 30 Jun 2015
Application note Maximum Clock Frequency of I2C Bus Using Repeaters 15 May 2015
Application note I2C Bus Pull-Up Resistor Calculation PDF | HTML 13 Feb 2015
User guide LM8335 Evaluation Module (Rev. A) 03 May 2013

Design & development

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Evaluation board

LM8335EVM — LM8335 General-Purpose Output Expander with MIPI RFFE Host Interface Evaluation Module Board

General-Purpose Output Expander with MIPI RFFE Host Interface Evaluation Module - I2C IO Expander

The EVM operates from USB supplied power. This board supports USB to MIPI RFFE communication to support evaluation of the LM8335 MIPI RFFE to General Purpose Output (GPO) expansion.
User guide: PDF
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Simulation tool

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Package Pins Download
DSBGA (YZR) 16 View options

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