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CY74FCT138CTQC
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Product Detailed Parameters
- Description：DECODER/DRIVER, FCT SERIES
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Type：-
- Circuit：-
- Independent Circuits：-
- Current - Output High, Low：-
- Voltage Supply Source：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The CY74FCT138CTQC is a 1-of-8 decoder manufactured by Texas Instruments, belonging to the FCT logic series. It features one input line and eight output lines within a single circuit configuration. The device operates on a supply voltage ranging from 4.75 V to 5.25 V and exhibits a propagation delay of 6 ns. It is housed in an SSOP-16 package suitable for surface mount installation. The component supports an operating temperature range from -40°C to +85°C and includes moisture sensitivity classification.
Feature Summary
- Provides 1-to-8 decoding functionality with active low outputs
- Includes three enable inputs (two active low, one active high) for cascading applications
- Supports surface mount technology via SSOP-16 packaging
Applications
- Memory address decoding
- Data routing systems
- Industrial control logic circuits
Procurement Notes
Verify the specific suffix 'C' against official datasheets to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with existing board layouts regarding pin pitch and thermal requirements. Confirm RoHS compliance status through current manufacturer documentation before finalizing procurement orders.
Selection Notes
Select this component when designing systems requiring fast switching speeds within standard CMOS voltage limits. The FCT series offers performance comparable to Schottky TTL while maintaining lower power consumption. Verify that the application environment remains within the specified -40°C to +85°C operational temperature range for reliable operation.
Part Context
This part belongs to the broader CY74FCT138T family of decoders produced by Texas Instruments. It shares functional similarities with other industry-standard 3-to-8 line decoders but utilizes specific FCT technology for optimized speed and drive capability. The designation indicates a commercial grade variant within the manufacturer's logic IC portfolio.
Replacement Considerations
Compatible substitutes include SN74F138D and CD74HC138. Verify pinout compatibility and electrical characteristics such as voltage tolerance and propagation delay before implementing any cross-manufacturer replacements in existing designs.
