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See Technical Specifications

PCA9545ADWR +BOM

Translating Switch Interface 20-SOIC

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

PCA9545ADWR
Datasheet:

PCA9545ADWR Datasheet (PDF)
Applications:

Translating Switch
Interface:

I²C, SMBus
Voltage - Supply:

2.3V ~ 5.5V
Mounting Type:

Surface Mount
EDA/CAD Models:

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PCA9545ADWR General Description

The PCA9545ADWR stands out as a reliable and efficient quad bidirectional translating switch that is well-suited for a variety of applications requiring complex channel control. Its integration with the I2C bus enables seamless communication between components, while the ability to select specific channels based on user-defined parameters adds a layer of customization and flexibility. The presence of interrupt inputs for each downstream pair ensures timely monitoring and response, enhancing overall system performance. Additionally, the device's robust design, including the active-low reset feature and 5.5V tolerance on all I/O terminals, provides users with a dependable solution for managing multiple channels and facilitating smooth communication between devices operating at different voltage levels

Key Features

1-of-4 Bidirectional Translating Switches
I²C Bus and SMBus Compatible
Four Active-Low Interrupt Inputs
Active-Low Interrupt Output
Active-Low Reset Input
Two Address Terminals, Allowing up to Four Devices on the I²C Bus
Channel Selection via I²C Bus, in Any Combination
Power-Up With All Switch Channels Deselected
Low R_ON Switches
Allows Voltage-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V Buses
No Glitch on Power-Up
Supports Hot Insertion
Low Standby Current
Operating Power-Supply Voltage Range of 2.3 V to 5.5 V
5.5 V Tolerant Inputs
0 to 400-kHz Clock Frequency
Latch-Up Performance Exceeds 100 mA per JESD 78
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 1000-V Charged-Device Model (C101)

Specifications

Category	Integrated Circuits (ICs)InterfaceSpecialized	Series	-
Applications	Translating Switch	Interface	I²C, SMBus
Voltage - Supply	2.3V ~ 5.5V	Mounting Type	Surface Mount
Base Product Number	PCA9545