PCA9509GM,125
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NXP USA Inc. PCA9509GM,125

Manufacturer No:
PCA9509GM,125
Manufacturer:
NXP USA Inc.
Package:
Tape & Reel (TR)
Description:
IC REDRIVER I2C 2CH 400KHZ 8XQFN
Delivery:
Payment:
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Product Introduction

Overview

The PCA9509GM,125 from NXP USA Inc. is a level translating I2C-bus/SMBus repeater designed to facilitate communication between low-voltage and standard-voltage I2C-bus or SMBus systems. This component enables seamless integration of processors operating at lower voltages with standard I2C-bus or SMBus interfaces, ensuring no degradation in system performance. The PCA9509GM,125 is particularly useful in mixed-voltage systems where compatibility between different voltage levels is crucial.

Key Specifications

ParameterMinTypMaxUnit
VCC(A) (Port A Supply Voltage)1.35--V
VCC(B) (Port B Supply Voltage)--5.5V
Supply Current (Port A, static HIGH)0.250.450.9mA
Supply Current (Port A, static LOW)1.253.05mA
Supply Current (Port B, static HIGH)0.50.91.1mA
Operating Temperature-40-85°C
Package TypeXQFN8---
Package Dimensions1.6 x 1.6 x 0.5 mm---

Key Features

  • Level Translation: Enables communication between low-voltage and standard-voltage I2C-bus or SMBus systems without performance degradation.
  • Bidirectional Open-Drain Buffers: Supports up-translation and down-translation between the two buses.
  • Over-Voltage Tolerance: Port B I/Os are tolerant to 5.5 V even when the device is unpowered.
  • Power-Up Circuitry: Keeps output drivers turned off until VCC(B) is above 2.5 V.
  • Low Power Consumption: Optimized for low power supply currents on both ports.

Applications

  • Mixed-Voltage Systems: Ideal for systems where processors operate at different voltage levels.
  • Industrial Automation: Used in industrial control systems that require communication between devices at different voltage levels.
  • Consumer Electronics: Suitable for various consumer electronic devices that need to interface with different voltage-level components.
  • Automotive Systems: Used in automotive systems for reliable communication between different modules operating at various voltage levels.

Q & A

  1. What is the primary function of the PCA9509GM,125? The PCA9509GM,125 is a level translating I2C-bus/SMBus repeater that enables communication between low-voltage and standard-voltage I2C-bus or SMBus systems.
  2. What is the minimum supply voltage for Port A? The minimum supply voltage for Port A (VCC(A)) is 1.35 V.
  3. Is the PCA9509GM,125 over-voltage tolerant? Yes, the Port B I/Os are over-voltage tolerant up to 5.5 V even when the device is unpowered.
  4. What is the operating temperature range of the PCA9509GM,125? The operating temperature range is from -40°C to 85°C.
  5. What package type is the PCA9509GM,125 available in? The PCA9509GM,125 is available in an XQFN8 package.
  6. How does the power-up circuitry work? The power-up circuitry keeps the output drivers turned off until VCC(B) is above 2.5 V.
  7. Can the PCA9509GM,125 handle bidirectional communication? Yes, it supports bidirectional open-drain buffers for up-translation and down-translation.
  8. What are some common applications of the PCA9509GM,125? Common applications include mixed-voltage systems, industrial automation, consumer electronics, and automotive systems.
  9. How does the PCA9509GM,125 manage power consumption? It is optimized for low power supply currents on both ports.
  10. Is the PCA9509GM,125 RoHS compliant? Yes, the PCA9509GM,125 is RoHS compliant.

Product Attributes

Type:Buffer, ReDriver
Applications:I²C
Input:2-Wire Bus
Output:2-Wire Bus
Data Rate (Max):400kHz
Number of Channels:2
Delay Time:- 
Signal Conditioning:- 
Capacitance - Input:2 pF
Voltage - Supply:3V ~ 5.5V
Current - Supply:3mA
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:8-XFQFN Exposed Pad
Supplier Device Package:8-XQFNU (1.6x1.6)
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Similar Products

Part Number PCA9509GM,125 PCA9509PGM,125 PCA9509AGM,125
Manufacturer NXP USA Inc. NXP USA Inc. NXP USA Inc.
Product Status Active Active Obsolete
Type Buffer, ReDriver Buffer, ReDriver Buffer, ReDriver
Applications I²C I²C I²C
Input 2-Wire Bus 2-Wire Bus 2-Wire Bus
Output 2-Wire Bus 2-Wire Bus 2-Wire Bus
Data Rate (Max) 400kHz 400kHz 400kHz
Number of Channels 2 2 2
Delay Time - - -
Signal Conditioning - - -
Capacitance - Input 2 pF 10 pF 2 pF
Voltage - Supply 3V ~ 5.5V 2.3V ~ 5.5V 2.3V ~ 5.5V
Current - Supply 3mA 5µA 5µA
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 8-XFQFN Exposed Pad 8-XFQFN Exposed Pad 8-XFQFN Exposed Pad
Supplier Device Package 8-XQFNU (1.6x1.6) 8-XQFN (1.6x1.6) 8-XQFN (1.6x1.6)

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