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Product Detailed Parameters
- Description：IC BUS SWITCH 4 X 1:1 20TVSOP
- Series：74CBT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Bus Switch
- Circuit：4 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：20-TFSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-TVSOP
- Grade：-
- Qualification：-
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Overview
The SN74CBT3244DGVR is an octal FET bus switch manufactured by Texas Instruments. It operates on a single power supply ranging from 4.5V to 5.5V and features bidirectional data flow across eight independent channels. The device utilizes a 20-TVSOP package with a width of 4.40mm. It supports an operating temperature range from -40°C to +85°C and includes low control input circuitry for high-speed switching applications.
Feature Summary
- Octal configuration providing eight independent bidirectional bus switches
- Low on-resistance FET technology for efficient signal transmission
- Compatible with TTL logic levels for simplified interface design
- Single-supply operation within the 4.5V to 5.5V voltage range
Applications
- High-speed data routing in digital systems
- Portable equipment requiring low power consumption
- Consumer electronics utilizing 5V logic interfaces
- Computing products needing bidirectional bus isolation
Procurement Notes
Verify the specific suffix DGVR confirms the 20-TVSOP surface-mount package and tape-and-reel shipping format. Ensure the component meets RoHS3 compliance standards as indicated in official documentation. Confirm the manufacturer is Texas Instruments to avoid counterfeit parts. Check for moisture sensitivity level requirements during storage and handling procedures.
Selection Notes
Select this component when an octal bus switch is required for 5V logic systems. The TVSOP-20 package suits space-constrained designs compared to larger footprints. Consider the bidirectional nature of the channels for complex data paths. Verify that the 4.5V to 5.5V supply range aligns with the system's power architecture.
Part Context
This part belongs to the SN74CBT3244 family of octal FET bus switches. Variants such as SN74CBT3244RGYR offer alternative QFN packaging, while SN74CBT3244CPWR provides a different plastic package option. All variants share the core octal switching functionality but differ in physical dimensions and mounting styles.
Replacement Considerations
SN74CBT3244DGVRG4 serves as a lead-free compliant replacement variant within the same package type. SN74CBT3244DGVRE4 is another equivalent option offering environmental compliance. These substitutes maintain identical electrical characteristics and pinouts.
