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CY74FCT16543CTPVCT
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Product Detailed Parameters
- Description：IC TXRX NON-INVERT 5.5V 56SSOP
- Series：74FCT
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),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：32mA, 64mA
- Voltage - Supply：4.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：56-BSSOP (0.295", 7.50mm Width)
- Supplier Device Package：56-SSOP
- Grade：-
- Qualification：-
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Overview
The CY74FCT16543CTPVCT is a 16-bit registered bus transceiver from the FCT logic series, manufactured by Texas Instruments. It features two independent circuits, each handling eight bits of data with non-inverting true outputs and three-state capability. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports TTL input and output levels. Key electrical specifications include a propagation delay of 6.5 ns, a low-level output current of 64 mA, and a high-level output current of -32 mA. It is housed in a 56-pin SSOP package and functions reliably across an operating temperature range of -40°C to +85°C.
Feature Summary
- Provides latched data storage for bidirectional bus communication via registered architecture
- Enables controlled signal isolation through independent three-state outputs
- Supports direct interface with TTL-compatible logic systems
Applications
- High-speed parallel data buffering in computer systems
- Clocked data transmission between microprocessors and memory modules
- Bus driver applications requiring latched signal integrity
Procurement Notes
Verify component authenticity due to discontinuation status. Confirm package marking matches original Cypress or Texas Instruments standards. Check datasheet revisions for pinout consistency. Validate RoHS compliance documentation. Ensure replacement sources provide traceable manufacturing records.
Selection Notes
Evaluate thermal performance under maximum load conditions. Verify power supply stability within specified voltage limits. Assess signal integrity requirements against propagation delay specifications. Consider package availability constraints given end-of-life status. Compare alternative registered transceivers if lead times are critical.
Part Context
This component belongs to the 74FCT16543 family of registered bus transceivers. Originally developed by Cypress Semiconductor, production was transferred to Texas Instruments following corporate acquisitions. The part represents a standard solution for 16-bit data path management in legacy industrial and computing hardware designs.
Replacement Considerations
Texas Instruments lists CY74FCT16543CTPVCT as obsolete. Potential substitutes include CY74FCT16543ATPACT or CY74FCT16543CTPAG8. Verify pin compatibility and electrical parameters before integration.
