PCA9511AD,112
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NXP USA Inc. PCA9511AD,112

Manufacturer No:
PCA9511AD,112
Manufacturer:
NXP USA Inc.
Package:
Bulk
Description:
BUFFER, ACCELERATOR 1 CHANNEL 40
Delivery:
Payment:
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Product Introduction

Overview

The PCA9511A, produced by NXP USA Inc., is a hot swappable I²C-bus and SMBus buffer designed to facilitate the insertion and removal of I/O cards into a live backplane without corrupting the data and clock buses. This component ensures seamless integration and operation in multipoint backplane systems, making it ideal for applications requiring robust and reliable communication over the I²C and SMBus protocols.

Key Specifications

ParameterValue
Operating Power Supply Voltage2.7 V to 5.5 V
Clock Frequency0 Hz to 400 kHz
CompatibilityI²C-bus Standard-mode, I²C-bus Fast-mode, and SMBus standards
Rise Time AcceleratorsBuilt-in ∆V/∆t rise time accelerators on all SDA and SCL lines (0.6 V threshold)
ENABLE InputActive HIGH ENABLE input
READY OutputActive HIGH READY open-drain output
ESD ProtectionExceeds 2000 V HBM per JESD22-A114
SDA and SCL PinsHigh-impedance for VCC = 0 V, 1 V precharge on all SDA and SCL lines

Key Features

  • Bidirectional buffer for SDA and SCL lines to increase fan out and prevent corruption during live board insertion and removal.
  • Compatible with I²C-bus Standard-mode, I²C-bus Fast-mode, and SMBus standards.
  • Built-in ∆V/∆t rise time accelerators on all SDA and SCL lines.
  • Active HIGH ENABLE input and Active HIGH READY open-drain output.
  • High-impedance SDA and SCL pins for VCC = 0 V.
  • 1 V precharge on all SDA and SCL lines to minimize current required during insertion.
  • Supports clock stretching and multiple master arbitration/synchronization.

Applications

The PCA9511A is suitable for various applications requiring hot swappable I/O cards, including but not limited to:

  • Multipoint backplane systems.
  • Industrial control systems.
  • Automotive systems.
  • Medical devices.
  • Any system where I/O cards need to be inserted or removed without disrupting the bus operation.

Q & A

  1. What is the primary function of the PCA9511A? The PCA9511A is a hot swappable I²C-bus and SMBus buffer that allows I/O card insertion into a live backplane without corrupting the data and clock buses.
  2. What are the compatible bus standards for the PCA9511A? The PCA9511A is compatible with I²C-bus Standard-mode, I²C-bus Fast-mode, and SMBus standards.
  3. What is the operating power supply voltage range for the PCA9511A? The operating power supply voltage range is from 2.7 V to 5.5 V.
  4. What is the purpose of the ENABLE input pin? The ENABLE input pin enables the device when asserted HIGH and forces the device into a low current mode when asserted LOW.
  5. What is the function of the READY output pin? The READY output pin indicates that the backplane and card sides are connected together (HIGH) or not (LOW).
  6. Does the PCA9511A support clock stretching and multiple master arbitration? Yes, the PCA9511A supports clock stretching and multiple master arbitration/synchronization.
  7. What is the ESD protection level of the PCA9511A? The ESD protection exceeds 2000 V HBM per JESD22-A114.
  8. How do the rise time accelerators work on the PCA9511A? The built-in ∆V/∆t rise time accelerators on all SDA and SCL lines allow the use of weaker DC pull-up currents while meeting rise time requirements.
  9. What is the significance of the 1 V precharge on SDA and SCL lines? The 1 V precharge minimizes the current required to charge the parasitic capacitance of the chip during insertion.
  10. In what types of systems is the PCA9511A typically used? The PCA9511A is typically used in multipoint backplane systems, industrial control systems, automotive systems, and medical devices.

Product Attributes

Type:Buffer, Accelerator
Applications:I²C - Hotswap
Input:2-Wire Bus
Output:2-Wire Bus
Data Rate (Max):400kHz
Number of Channels:1
Delay Time:- 
Signal Conditioning:- 
Capacitance - Input:5 pF
Voltage - Supply:2.7V ~ 5.5V
Current - Supply:6mA
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SO
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Same Series
PCA9511AD,118
PCA9511AD,118
IC BUFFER I2C/SMBUS HOTSWAP 8SO
PCA9511AD,112
PCA9511AD,112
BUFFER, ACCELERATOR 1 CHANNEL 40

Similar Products

Part Number PCA9511AD,112 PCA9511AD,118 PCA9516AD,112 PCA9511D,112 PCA9515AD,112 PCA9512AD,112 PCA9513AD,112 PCA9514AD,112 PCA9517AD,112 PCA9510AD,112
Manufacturer NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc.
Product Status Obsolete Active Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete Obsolete
Type Buffer, Accelerator Buffer, Accelerator Buffer, ReDriver Buffer, Accelerator Buffer, ReDriver Buffer, Accelerator Buffer, Accelerator Buffer, Accelerator Buffer, ReDriver Buffer, ReDriver
Applications I²C - Hotswap I²C - Hotswap I²C I²C - Hotswap I²C I²C - Hotswap I²C - Hotswap I²C - Hotswap I²C I²C - Hotswap
Input 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus
Output 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus 2-Wire Bus
Data Rate (Max) 400kHz 400kHz 400kHz 400kHz 400kHz 400kHz 400kHz 400kHz 400kHz 400kHz
Number of Channels 1 1 5 1 1 1 1 1 2 1
Delay Time - - - - - - - - - -
Signal Conditioning - - - - - - - - - -
Capacitance - Input 5 pF 5 pF 6 pF 5 pF 6 pF 10 pF 1.9 pF 1.9 pF 6 pF 1.9 pF
Voltage - Supply 2.7V ~ 5.5V 2.7V ~ 5.5V 3V ~ 3.6V 2.7V ~ 5.5V 2.3V ~ 3.6V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V
Current - Supply 6mA 6mA 5mA 6mA 800µA 1.8mA 3.5mA 3.5mA 5mA 6mA
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 16-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO 8-SO 16-SO 8-SO 8-SO 8-SO 8-SO 8-SO 8-SO 8-SO

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