| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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63 pcs
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63 pcs | On Request | 1 | On Request | On Request | 18+ | On Request | On Request | |
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5 pcs
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5 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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1 pcs
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1 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
1 pcs
|
1 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The PCA9548A is an octal bidirectional translating switch designed for I2C-bus applications. It features a programmable control register that allows any individual SCx/SDx channel or combination of channels to be selected. The device supports voltage level translation between 1.8 V, 2.5 V, 3.3 V, and 5 V buses, with external pull-up resistors setting the desired voltage level for each channel. All I/O pins are 6 V tolerant.
Key features include an active LOW reset input for bus recovery and three address pins enabling up to eight devices on the I2C-bus. The switch operates with a supply voltage range of 2.3 V to 5.5 V and supports clock frequencies up to 400 kHz. It is available in a 24-HVQFN package and is surface-mount compatible.
This specialized interface IC is suitable for applications requiring flexible bus management and voltage level shifting within I2C or SMBus systems. Its design supports hot insertion and provides low standby current.
| Qty | Low | High |
|---|---|---|
| 1+ | $6.39 | $6.39 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating power supply voltage range is 2.3 V to 5.5 V.
The interface is I2C and SMBus.
The maximum clock frequency supported is 400 kHz.
The I/O pins are 6 V tolerant.
Yes, it allows voltage level translation between 1.8 V, 2.5 V, 3.3 V, and 5 V buses.
It provides 8 bidirectional translating channels.
Yes, it features an active LOW reset input.