SN74CB3T3253PW

Overview

The SN74CB3T3253PW is a dual 1-of-4 FET multiplexer/demultiplexer from the Texas Instruments SN74CB3T3253 series. It operates on a single power supply ranging from 2.3 V to 3.6 V. The device features two independent channels, each configured as a 1:4 switch. Key electrical parameters include a maximum on-resistance of 8 ohms and a typical bandwidth of 100 MHz. It supports continuous input/output currents up to 128 mA and offers powered-off protection. The component is housed in a 16-pin TSSOP package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing two independent 1-of-4 switching paths for signal routing
• Low-voltage operation capability with a wide supply voltage range supporting 2.5-V and 3.3-V systems
• High-bandwidth performance suitable for high-speed data transmission applications
• Integrated powered-off protection to prevent current leakage when the device is unpowered

Applications

• Portable equipment requiring low-power signal switching
• Consumer electronics utilizing low-voltage logic interfaces
• Computing products needing high-speed bus exchange
• Telecommunications infrastructure involving signal multiplexing

Procurement Notes

Verify the specific ordering suffix 'PW' corresponds to the TSSOP-16 package variant during procurement. Confirm that the required quantity matches the manufacturer's standard packaging specifications. Ensure the application environment remains within the specified -40°C to +85°C temperature limits. Check for RoHS compliance status if environmental regulations apply to the final assembly. Validate pinout compatibility with the target PCB footprint before integration.

Selection Notes

Select this component when dual independent 1-of-4 switching is required within a low-voltage system. The SN74CB3T3253PW is appropriate for designs demanding high bandwidth and low on-resistance. Consider the TSSOP-16 package constraints regarding board space and thermal dissipation. Compare against similar devices like the SN74CB3Q3253PWR if automotive qualification or different packaging is needed. Ensure the 2.3-V to 3.6-V supply range aligns with the system power rails.

Part Context

This part belongs to the SN74CB3T3253 family of low-voltage high-bandwidth bus switches. It is manufactured by Texas Instruments and serves as a digital signal routing solution. The device complements other bus switches in the CB3T series by offering dual-channel multiplexing capabilities. It is designed for modern electronic systems requiring efficient signal management at reduced voltage levels.

Replacement Considerations

The SN74CB3Q3253PWR is a verified substitute offering identical dual 1-of-4 functionality. Other compatible variants include the SN74CB3T3253DGVR and SN74CB3T3253DBR, which provide the same logical operations in different package formats.