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CD74FCT543M
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Product Detailed Parameters
- Description：BUS TRANSCEIVER, FCT SERIES
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Number of Elements：-
- Number of Bits per Element：-
- Input Type：-
- Output Type：-
- Current - Output High, Low：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The CD74FCT543M is an octal registered bus transceiver from the BiCMOS FCT logic series, manufactured by Texas Instruments. It features three-state outputs and operates within a supply voltage range of 4.75 V to 5.25 V. The device provides a propagation delay of 8.5 ns, with low-level output current capability of 64 mA and high-level output current of -32 mA. It is housed in a 24-pin SOIC package and supports TTL input and output levels. The component functions as a non-inverting register/transceiver with one circuit configuration.
Feature Summary
- Octal registered bus transceiver architecture for bidirectional data transfer
- BiCMOS FCT technology ensuring high-speed performance with low power consumption
- Three-state outputs allowing direct connection to system buses
- TTL-compatible input and output voltage levels
Applications
- High-performance memory mapping systems
- Clock drivers and buffered oscillators
- Bus-oriented architectures requiring registered transmission
Procurement Notes
Verify the specific suffix 'M' corresponds to the standard SOIC-24 package and commercial temperature range (0°C to 70°C) on the official datasheet. Confirm RoHS compliance status through the manufacturer's documentation. Ensure the ordering part number matches the exact pinout and electrical specifications required for your design integration.
Selection Notes
Select this component when an octal registered transceiver with three-state outputs is required for bus applications. It is suitable for designs needing TTL compatibility and BiCMOS speed. Consider the 24-SOIC package constraints and the 0°C to 70°C operating temperature range during thermal management planning.
Part Context
This part belongs to the Texas Instruments 74FCT family, which utilizes BiCMOS technology to combine the speed of bipolar devices with the low power of CMOS. The 543 variant specifically adds registration capabilities to the standard bus transceiver function, making it distinct from unregistered counterparts like the 541 or 542.
Replacement Considerations
The CY74FCT543M is a compatible alternative offering extended industrial temperature range (-40°C to 85°C). Verify pin compatibility and electrical parameter equivalence before substitution.
