74CB3Q3253PWJ

Overview

The Nexperia 74CB3Q3253PWJ is a dual high-bandwidth single-pole, quad-throw FET bus switch housed in a TSSOP16 package. It features an internal charge pump that increases the gate voltage of the NMOS pass transistor, enabling improved RON and RON(flat) performance. This architecture allows the device to switch 5 V signals even when operating at a VCC of 3.3 V. The component supports a wide supply voltage range from 2.3 V to 3.6 V and operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• Internal charge pump enables switching of 5 V signals with a 3.3 V supply
• High bandwidth capability for fast signal transmission
• Low input/output capacitance minimizes loading and signal distortion
• IOFF circuitry supports partial power-down mode operation

Applications

• Communication infrastructure
• Bus isolation
• Memory interleaving
• Sensor multiplexing

Procurement Notes

Verify the specific suffix 'PWJ' against official Nexperia documentation to confirm exact tape-and-reel packaging specifications and lot traceability requirements. Ensure the procurement channel provides valid manufacturer authorization. Confirm that the delivered components match the TSSOP16 (SOT403-1) package outline dimensions specified in the datasheet to prevent assembly issues.

Selection Notes

Select this component when designing circuits requiring the translation or switching of 5 V logic levels using a lower 3.3 V control supply. The integrated charge pump eliminates the need for external level-shifting components. Consider the low OFF-state capacitance for high-frequency applications where signal integrity is critical. Verify that the required ON resistance characteristics meet the specific load current demands of the target application.

Part Context

This part belongs to the 74CB3Q series of FET bus switches manufactured by Nexperia. These devices are designed for high-speed data routing and signal conditioning in digital systems. The 74CB3Q3253 variant specifically provides two independent 1-of-4 multiplexer/demultiplexer channels, offering flexible routing options for complex bus architectures.

Replacement Considerations

Check for direct pin-compatible substitutes such as the 74CB3Q3253BQ in DHVQFN16 package if space constraints differ. Verify functional equivalence regarding the charge pump mechanism and maximum switching voltages before substituting.