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TCA9543APWR The Texas Instruments TCA9543APWR is a 2-channel, 1.65V to 5.5V I2C/SMBus switch. It is available in a 14-TSSOP package.
Mfr Part #:

TCA9543APWR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA9543APWR is a 2-channel, 1.65V to 5.5V I2C/SMBus switch. It is available in a 14-TSSOP package.
✓ Total Stock: 101,173 pcs
$ Price Range: $0.37

TCA9543APWR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
100,000 pcs
On Request
100000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,173 pcs
On Request
1173 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.

TCA9543APWR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Circuit
Clock Frequency
Independent Circuits
Latch-up Performance
Mounting Type
Operating Temperature
Supplier Device Package
Tape & Reel
Type
Voltage
Voltage Supply Source
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TCA9543APWR Description

Short technical summary and product information.

The TCA9543APWR from Texas Instruments is a dual bidirectional translating switch designed for I2C and SMBus applications. It operates over a wide supply voltage range of 1.65V to 5.5V, making it suitable for various system designs.

 

This switch features two active-low interrupt inputs and one active-low interrupt output, which acts as an AND of the two interrupt inputs. It also includes an active-low reset input for recovering from bus issues. The device supports voltage-level translation between 1.8V, 2.5V, 3.3V, and 5V buses, and its inputs are 5.5V tolerant. The clock frequency can be up to 400 kHz.

 

Packaged in a 14-TSSOP, the TCA9543APWR is designed for surface mount applications. It offers features such as low R ON switches, no glitch on power-up, and support for hot insertion. The device is rated for an operating temperature range of -40°C to 85°C.

TCA9543APWR Quick Information

Product Type: I2C/SMBus Switch
Series: I2C & I3C switches & multiplexers
Canonical Name: TCA9543A Dual Bidirectional Translating Switch
Subcategory: Bus Switch

TCA9543APWR Compliance

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

TCA9543APWR Estimated Pricing

Qty Low High
1+ $0.37 $0.37

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

TCA9543APWR Features

  • Dual bidirectional translating switch.
  • 1.65V to 5.5V operating supply voltage.
  • Supports voltage-level translation.
  • Includes interrupt and reset functions.
  • 14-TSSOP surface mount package.

TCA9543APWR Applications

  • I2C bus and SMBus applications.
  • System designs requiring bus isolation.
  • Voltage level translation circuits.
  • Systems with multiple I2C devices.

TCA9543APWR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the TCA9543APWR?

1.65V to 5.5V.

What is the operating temperature range?

-40°C to 85°C.

What package does the TCA9543APWR come in?

14-TSSOP (0.173", 4.40mm Width).

What is the maximum clock frequency?

Up to 400 kHz.

What ESD protection does the TCA9543APWR have?

±4000V HBM and ±1500V CDM.

What is the circuit configuration?

2 x 1:2 bus switch.

What is the latch-up performance?

Exceeds 100 mA per JESD78.

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