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Product details

Parameters

Features Buffer, Enable Pin Frequency (Max) (kHz) 400 VCCA (Min) (V) 2.3 VCCA (Max) (V) 3.6 VCCB (Min) (V) 2.3 VCCB (Max) (V) 3.6 Supply restrictions VCC Single Supply Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other I2C level shifters, buffers & hubs

Package | Pins | Size

VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other I2C level shifters, buffers & hubs

Features

  • Two-Channel Bidirectional Buffers
  • I2C Bus and SMBus Compatible
  • Support for I2C Standard Mode (100-kHz) and
    Fast Mode (400-kHz)
  • Active-High Repeater-Enable Input
  • Open-Drain I2C Input and Output
  • 5.5-V Tolerant I2C Input and Output and
    Enable Input Support Mixed-Mode Signal Operation
  • Lockup-Free Operation
  • Accommodates Standard Mode, Fast Mode I2C
    Devices, and Multiple Masters
  • Supports Arbitration and Clock Stretching Across
    Repeater
  • Powered-Off High-Impedance I2C Pins
  • Latch-Up Performance Exceeds 100-mA Per
    JESD 78, Class I
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 1000-V Charged-Device Model (C101)
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Description

The PCA9515B is a BiCMOS dual bidirectional buffer integrated circuit intended for I2C bus and SMBus applications. The device contains two identical bidirectional open-drain buffer circuits that enables I2C and similar bus systems to be extended (or add slaves) without degrading system performance. The dual bidirectional I2C buffer is operational at 2.3 V to 3.6 V VCC.

The PCA9515B buffers both the serial data (SDA) and serial clock (SCL) signals on the I2C bus, while retaining all the operating modes and features of the I2C system. The device allows two buses, of 400-pF bus capacitance, to be connected in an I2C application.

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet PCA9515B Dual Bidirectional I2C Bus and SMBus Repeater datasheet (Rev. B) Mar. 24, 2016
Application notes Why, When, and How to use I2C Buffers May 23, 2018
Selection guides Logic Guide (Rev. AB) Jun. 12, 2017
Application notes Choosing the Correct I2C Device for New Designs Sep. 07, 2016
Application notes Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
Application notes Understanding the I2C Bus Jun. 30, 2015
Application notes Maximum Clock Frequency of I2C Bus Using Repeaters May 15, 2015
Application notes I2C Bus Pull-Up Resistor Calculation Feb. 13, 2015
Application notes Programming Fun Lights With TI's TCA6507 Nov. 30, 2007
Application notes Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

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PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI 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 (...)
document-generic User guide
DESIGN TOOLS Download
I2C designer tool
I2C-DESIGNER — Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard with (...)
Features
  • GUI-based web application
  • Exportable designs
  • JSON file uploader
  • Bill of materials generator

CAD/CAE symbols

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VSSOP (DGK) 8 View options

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