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Product Detailed Parameters
- Description：IC BUS SWITCH 1 X 1:1 8TSSOP
- Series：74CBT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Bus Switch
- Circuit：1 x 1:1
- Independent Circuits：2
- Current - Output High, Low：-
- Voltage Supply Source：Single Supply
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
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Overview
The SN74CBT3306PWRG4 is a dual FET bus switch from Texas Instruments' CBT logic family, housed in an 8-TSSOP package. It operates on a single supply voltage ranging from 2.3V to 3.6V. The device features two independent 1:1 switches with low on-resistance and fast propagation delay. It supports -40°C to +85°C operating temperatures and includes undershoot protection.
Feature Summary
- Dual FET bus switch architecture providing two independent signal paths
- Low on-resistance for minimal signal attenuation
- Integrated level shifting capability for mixed-voltage interfaces
- -2 V undershoot protection for input signal integrity
Applications
- Portable consumer electronics requiring low power consumption
- Battery-powered systems utilizing single-supply operation
- High-speed data buses in mobile devices
- Level translation between different voltage domains
Procurement Notes
Verify the specific suffix 'G4' indicates RoHS compliance and manufacturing changes as per Texas Instruments documentation. Confirm the package type matches the design footprint requirements. Ensure the voltage range aligns with the system's power supply rails. Check for any obsolescence notices or product change notifications associated with this part number before finalizing procurement plans.
Selection Notes
Select this component when designing circuits that require bidirectional switching between 2.3V and 3.6V domains. It is suitable for applications needing low on-resistance and high bandwidth. Consider the 8-TSSOP package constraints for PCB layout. Verify that the current drive capabilities meet the load requirements of the connected signals.
Part Context
This part belongs to the SN74CBT3306 series, which are dual FET bus switches designed for low-voltage applications. The 'G4' suffix typically denotes Green/RoHS-compliant packaging and manufacturing processes. It is part of Texas Instruments' broader portfolio of signal switching ICs aimed at portable and battery-operated devices.
Replacement Considerations
SN74CBT3306PWR is the non-RoHS equivalent. SN74CBT3306CDR is a SOIC-8 variant with similar electrical characteristics but different package dimensions. SN74CB3T3306DCUR is a VSSOP-8 version within the same functional family.
