| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,804 pcs
|
1804 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
50 pcs
|
50 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Applications | |
| Frequency | |
| Interface | |
| Lead Spacing | |
| Mounting Type | |
| Number of Channels | |
| Operating Temperature | |
| Supplier Device Package | |
| Supplier Package | |
| Voltage |
The PCA9543ADR from Texas Instruments is a versatile 2-channel I2C and SMBus switch. It supports voltage-level translation between 1.8-V, 2.5-V, 3.3-V, and 5-V buses, making it suitable for mixed-voltage environments. The device operates with a power supply voltage ranging from 2.3V to 5.5V and features 5.5V tolerant inputs.
Key features include active-low interrupt inputs and an active-low reset input, along with two address pins that allow up to four PCA9543A devices on the I2C bus. Channel selection is performed via the I2C bus in any combination. The switch is designed for bidirectional translation and is compatible with I2C and SMBus protocols, supporting clock frequencies up to 400 kHz.
Packaged in a 14-SOIC (0.154", 3.90mm Width) surface-mount package, the PCA9543ADR is suitable for various applications requiring I2C bus expansion or level shifting. It offers features like no glitch on power-up and support for hot insertion, along with low standby current.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.79 | $0.79 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9543ADR operates within a supply voltage range of 2.3 V to 5.5 V.
The PCA9543ADR is available in a 14-SOIC package.
The operating temperature range for the PCA9543ADR is -40°C to 85°C.
The PCA9543ADR supports 2 channels.
The PCA9543ADR supports I2C and SMBus interface protocols.