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CD74FCT162543CTMT
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Product Detailed Parameters
- Description：IC TXRX NON-INVERT 5.5V 56SSOP
- Series：-
- Mfr：Harris Corporation
- Package：Bulk
- Logic Type：Transceiver, Non-Inverting
- Number of Elements：2
- Number of Bits per Element：8
- Input Type：-
- Output Type：3-State
- Current - Output High, Low：24mA, 24mA
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：56-TFSOP (0.240", 6.10mm Width)
- Supplier Device Package：56-SSOP
- Grade：-
- Qualification：-
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Overview
The CD74FCT162543CTMT is a CMOS registered bus transceiver from the FCT series, manufactured by Harris Corporation. It features two independent 8-bit functions with true outputs in a 56-pin TSSOP package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of -40 °C to 85 °C. Key electrical characteristics include a propagation delay of 5.7 ns, a load capacitance of 50 pF, and a maximum output current of 0.024 A. Outputs are three-state with series resistors.
Feature Summary
- Registered bus transceiver architecture supporting multiplexed transmission of registered or real-time data via selectable inputs.
- Non-inverting bidirectional data transfer capability with independent control for each 8-bit function.
- Three-state outputs integrated with series resistors to manage signal integrity and termination requirements.
Applications
- Multiplexed data transmission systems requiring registered buffering.
- High-speed digital bus interfaces utilizing FCT logic families.
- System architectures needing non-inverting bidirectional data routing with controlled impedance outputs.
Procurement Notes
Verify the manufacturer origin, as Harris Corporation's logic assets were acquired by Texas Instruments. Confirm that the specific part number corresponds to the original Harris production run rather than a TI equivalent. Ensure the package marking and date codes align with legacy Harris specifications if historical authenticity is required for the application.
Selection Notes
Select this component when a registered, non-inverting 8-bit bus transceiver is required for bidirectional data flow. It is suitable for designs needing independent control of two 8-bit channels with low propagation delay. Consider the 56-pin TSSOP footprint for space-constrained surface-mount applications requiring high-density I/O connections.
Part Context
This device belongs to the Harris FCT (Fast CMOS) family, designed for high-speed digital applications. It complements other Harris logic components like the CD74FCT162H543ATMT, which offers similar bus transceiver functionality but may differ in specific input features such as bus hold capabilities. The FCT series bridges the performance gap between standard TTL and advanced CMOS technologies.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with Texas Instruments equivalents, such as the SN74FCT162543, ensuring pinout and electrical parameters match the original Harris specification.
