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Product Detailed Parameters
- Description：IC BUS SWITCH 8 X 1:1 20SOIC
- Series：74CBT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Bus Switch
- Circuit：8 x 1:1
- Independent Circuits：1
- Current - Output High, Low：-
- Voltage Supply Source：Single Supply
- Voltage - Supply：4V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Grade：-
- Qualification：-
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Overview
The SN74CBT3245CDWR is an octal FET bus switch manufactured by Texas Instruments. It features bidirectional data transmission with a maximum propagation delay of 150 ps and a maximum on-resistance of 12 ohms. The device operates within a supply voltage range of 4 V to 5.5 V and supports a maximum operating temperature of +85 °C. It is housed in a 20-pin SOIC package and includes powered-off protection capabilities.
Feature Summary
- Provides bidirectional data transmission for eight channels
- Includes powered-off protection to prevent current leakage
- Features low on-resistance for efficient signal switching
Applications
- Portable applications requiring low power consumption
- Consumer electronics utilizing 5-V supplies
- Computing platforms needing high-speed data routing
Procurement Notes
Verify the specific ordering suffix to confirm the tape and reel packaging configuration, as standard bulk quantities may vary. Ensure the component meets RoHS compliance requirements for your manufacturing process. Confirm the moisture sensitivity level and recommended reflow soldering profile prior to assembly to maintain device integrity during production.
Selection Notes
Select this component when designing systems that require an octal bus switch operating specifically at 5-V logic levels. It is suitable for applications demanding fast switching speeds with minimal signal distortion. Consider the 20-pin SOIC package constraints for PCB layout and thermal management requirements relative to other available package options.
Part Context
This part belongs to the SN74CBT3245 family of octal FET bus switches. It shares functional similarities with variants like the SN74CBT3245CDBQR but differs in package type and specific electrical characteristics such as undershoot protection ratings. It serves as a key interface component for managing data flow between different system buses.
Replacement Considerations
The SN74CBT3245CDBQR is a documented substitute offering similar functionality with -2 V undershoot protection. Verify pin compatibility and electrical specifications before substitution.
