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PCA9515B

ACTIVE

2-bit bidirectional 2.3- to 3.6-V 400-kHz I2C/SMBus buffer

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Data sheet

PCA9515B

ACTIVE
Data sheet Order now

Product details

Features Buffer, Enable pin Protocols I2C Frequency (max) (MHz) 0.4 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
Features Buffer, Enable pin Protocols I2C Frequency (max) (MHz) 0.4 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
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • 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)
  • 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)

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.

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

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Type Title Date
* Data sheet PCA9515B Dual Bidirectional I2C Bus and SMBus Repeater datasheet (Rev. B) PDF | HTML 24 Mar 2016
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
Application note Why, When, and How to use I2C Buffers 23 May 2018
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Choosing the Correct I2C Device for New Designs PDF | HTML 07 Sep 2016
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
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
Application note Programming Fun Lights With TI's TCA6507 30 Nov 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004

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