PCA9517ADMR2G
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onsemi PCA9517ADMR2G

Manufacturer No:
PCA9517ADMR2G
Manufacturer:
onsemi
Package:
Tape & Reel (TR)
Description:
IC VOLT LEVEL TRANSLATOR US8
Delivery:
Payment:
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iso45001
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Product Introduction

Overview

The PCA9517ADMR2G, produced by onsemi, is a level-translating I2C-bus repeater designed to facilitate communication between I2C-bus or SMBus systems operating at different voltage levels. This device supports voltage level translation from as low as 0.9 V to as high as 5.5 V, making it versatile for various applications. It retains all the operating modes and features of the I2C-bus system during level shifts and provides bidirectional buffering for both the data (SDA) and clock (SCL) lines, enabling the extension of the I2C-bus and isolation of bus segments for better system performance.

Key Specifications

Parameter Conditions Min Typ Max Unit
VCC(A) and VCC(B) Operating Voltage Range 2.7 - 5.5 V
VCC(A) Minimum Operating Voltage 0.9 - - V
ICC(A) Supply Current (Port A) - 1 5 mA
ICC(A)c Contention Port A Supply Current - 1.5 5 mA
VIH High-Level Input Voltage - 0.7 x VCC(B) - V
VIL Low-Level Input Voltage - 0.4 x VCC(B) - V
TA Operating Free-Air Temperature -40 - 85 °C

Key Features

  • Provides level shifting between low voltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) for I2C-bus or SMBus applications.
  • 2-channel, bidirectional buffer isolates capacitance and allows 400 pF on either side of the device.
  • All inputs and I/Os are overvoltage tolerant to 5.5 V even when the device is unpowered.
  • Power-up circuit keeps the output drivers turned off until VCC(B) is above 2.5 V and VCC(A) is above 0.8 V.
  • Supports star and series configurations for multiple PCA9517A devices.
  • Enables extension of the I2C-bus by providing bidirectional buffering for both the data (SDA) and clock (SCL) lines.

Applications

  • I2C-bus or SMBus systems requiring voltage level translation.
  • Extension of I2C-bus segments to increase the number of devices on the bus.
  • Isolation of bus segments for improved system performance and noise reduction.
  • Star and series configurations for complex I2C-bus networks.
  • Embedded systems, industrial control systems, and consumer electronics where I2C-bus communication is necessary across different voltage domains.

Q & A

  1. What is the primary function of the PCA9517ADMR2G?

    The PCA9517ADMR2G is a level-translating I2C-bus repeater that provides voltage level shifting between low voltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) for I2C-bus or SMBus applications.

  2. What is the operating voltage range for the PCA9517ADMR2G?

    The operating voltage range for VCC(A) and VCC(B) is from 2.7 V to 5.5 V, with VCC(A) supporting as low as 0.9 V.

  3. How does the PCA9517ADMR2G handle overvoltage conditions?

    All inputs and I/Os are overvoltage tolerant to 5.5 V even when the device is unpowered.

  4. What is the significance of the power-up circuit in the PCA9517ADMR2G?

    The power-up circuit keeps the output drivers turned off until VCC(B) is above 2.5 V and VCC(A) is above 0.8 V.

  5. Can multiple PCA9517ADMR2G devices be connected in series or star configurations?

    Yes, multiple PCA9517ADMR2G devices can be connected in both series and star configurations to support complex I2C-bus networks.

  6. What is the maximum capacitance allowed on either side of the PCA9517ADMR2G?

    The device allows up to 400 pF on either side of the repeater.

  7. How does the PCA9517ADMR2G handle arbitration or clock stretching events?

    Arbitration or clock stretching events require that the LOW level on the B bus side at the input of the PCA9517ADMR2G be at or below 0.4 V to be recognized and transmitted to the A bus side.

  8. What are the typical applications of the PCA9517ADMR2G?

    The PCA9517ADMR2G is used in I2C-bus or SMBus systems, embedded systems, industrial control systems, and consumer electronics where voltage level translation is necessary.

  9. What is the operating temperature range for the PCA9517ADMR2G?

    The operating free-air temperature range is from -40°C to 85°C.

  10. How does the PCA9517ADMR2G support the extension of the I2C-bus?

    The device provides bidirectional buffering for both the data (SDA) and clock (SCL) lines, enabling the extension of the I2C-bus and isolation of bus segments.

Product Attributes

Type:Buffer, ReDriver
Applications:I²C
Input:- 
Output:- 
Data Rate (Max):- 
Number of Channels:2
Delay Time:- 
Signal Conditioning:- 
Capacitance - Input:5 pF
Voltage - Supply:0.9V ~ 5.5V
Current - Supply:1mA
Operating Temperature:-55°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:8-MSOP
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In Stock

$2.42
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Similar Products

Part Number PCA9517ADMR2G PCA9617ADMR2G PCA9511ADMR2G
Manufacturer onsemi onsemi onsemi
Product Status Not For New Designs Not For New Designs Active
Type Buffer, ReDriver Buffer, ReDriver -
Applications I²C I²C -
Input - 2-Wire Bus -
Output - 2-Wire Bus -
Data Rate (Max) - - -
Number of Channels 2 1 -
Delay Time - - -
Signal Conditioning - - -
Capacitance - Input 5 pF 10 pF -
Voltage - Supply 0.9V ~ 5.5V 2.7V ~ 5.5V -
Current - Supply 1mA 8µA -
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -
Mounting Type Surface Mount Surface Mount -
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) -
Supplier Device Package 8-MSOP 8-MSOP -

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