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TCA9545APWR The Texas Instruments TCA9545APWR is a 4-channel bidirectional translating I2C/SMBus switch. It supports voltage-level translation between 1.8V, 2.5V, 3.3V, and 5V buses.
Mfr Part #:

TCA9545APWR

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA9545APWR is a 4-channel bidirectional translating I2C/SMBus switch. It supports voltage-level translation between 1.8V, 2.5V, 3.3V, and 5V buses.
✓ Total Stock: 41,018 pcs
$ Price Range: $0.45

TCA9545APWR Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
30,675 pcs
On Request
30675 pcs On Request 1 On Request On Request 18+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
6,697 pcs
On Request
6697 pcs On Request 1 On Request On Request 18+ On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
2,000 pcs
On Request
2000 pcs On Request 1 On Request On Request 23+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,646 pcs
On Request
1646 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TCA9545APWR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Clock Frequency
ESD Protection
Independent Circuits
Latch-up Performance
Lead Spacing
Mounting Type
Operating Temperature
Package Quantity
Supplier Device Package
Supplier Package
Type
Voltage
Voltage Supply Source
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TCA9545APWR Description

Short technical summary and product information.

The TCA9545APWR from Texas Instruments is a versatile quad bidirectional translating switch designed for I2C and SMBus applications. It features four channels that can be individually selected via the I2C bus, allowing for flexible routing of data.

 

This device operates over a wide supply voltage range of 1.65V to 5.5V, with 5.5V tolerant inputs, making it suitable for various system designs. It supports clock frequencies up to 400kHz and includes features like active-low interrupt inputs, an active-low reset input, and two address terminals for multiple device configurations on the I2C bus.

 

The TCA9545APWR is available in a 20-TSSOP package, suitable for surface mounting. Its design incorporates features like no glitch on power-up and support for hot insertion, enhancing system reliability. The switch also offers voltage-level translation capabilities between common logic levels.

 

Key electrical characteristics include a low standby current and latch-up performance exceeding 100 mA per JESD 78. ESD protection is provided, meeting JESD 22 standards for human-body and charged-device models.

TCA9545APWR Quick Information

Product Type: I2C/SMBus Switch
Series: I2C & I3C switches & multiplexers
Canonical Name: TCA9545A 4-channel I2C/SMBus Switch with Interrupt, Reset & Voltage Translation
Subcategory: I2C & I3C Switches & Multiplexers

TCA9545APWR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TCA9545APWR Estimated Pricing

Qty Low High
1+ $0.45 $0.45

Estimated market price range - modelled values for guidance only, not live distributor offers.

TCA9545APWR Features

  • 4-channel bidirectional translating I2C/SMBus switch.
  • Supports voltage-level translation between buses.
  • Wide operating voltage range of 1.65V to 5.5V.
  • Operates at clock frequencies up to 400kHz.
  • Available in a 20-TSSOP surface mount package.

TCA9545APWR Applications

  • Ideal for multi-voltage I2C systems.
  • Facilitates communication between different logic levels.
  • Used in systems requiring flexible bus routing.
  • Supports hot-swapping of I2C devices.

TCA9545APWR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA9545APWR?

The operating voltage range is 1.65V to 5.5V.

What package type is the TCA9545APWR available in?

The TCA9545APWR is available in a 20-TSSOP package.

What is the operating temperature range for this I2C switch?

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

What is the RoHS status of the TCA9545APWR?

The TCA9545APWR is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the TCA9545APWR?

The MSL is Level 1 Unlimited.

What is the maximum clock frequency supported by the TCA9545APWR?

The TCA9545APWR supports clock frequencies up to 400kHz.

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