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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | 54FCT |
| Packaging | | |
| Part Status | Active |
| Logic Type | Transceiver, Non-Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 12mA, 48mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 28-CLCC |
| Supplier Device Package | 28-LCCC (11.43x11.43) |
| ROHS |  |
The CY54FCT646CTLMB is a high-performance, non-inverting transceiver from Texas Instruments, part of the 54FCT logic family. It features a single channel with 3-state outputs, capable of sinking 48mA and sourcing 12mA. Operating from a 4.5V to 5.5V supply, it is designed for 5V systems requiring robust bidirectional data transfer. Housed in a 28-CLCC package, it operates over the full military temperature range of -55°C to 125°C, making it ideal for aerospace, defense, and high-reliability industrial applications.
- High Drive Current (48mA Sink): Ensures reliable driving of heavy capacitive loads and long bus lines, improving signal integrity.
- Wide Temperature Range (-55°C to 125°C): Suitable for extreme environments, ensuring reliable operation in military and aerospace applications.
- 3-State Outputs: Allows multiple devices to share a common bus without contention, enhancing system flexibility.
- 54FCT Family Speed: Provides fast propagation delays, critical for high-speed data processing and communication.
High-Speed Bus Interfacing
Use the CY54FCT646CTLMB in microprocessor or DSP systems to buffer and drive high-speed data buses. The 54FCT family's fast propagation delay ensures minimal signal latency, critical for high-frequency operation.
Bidirectional Data Transmission
As a transceiver, it enables bidirectional data flow on a single bus, controlled by direction and output-enable pins. This is essential in memory interfaces and peripheral controllers where data must move in both directions.
5V Legacy System Integration
With a 4.5V to 5.5V supply range, this IC seamlessly integrates into existing 5V logic systems, providing a reliable interface for legacy components without the need for level shifting.
Military and Aerospace Electronics
Rated for -55°C to 125°C, it is suitable for harsh environments like avionics and satellite systems, where extreme temperature tolerance is mandatory.
Industrial Control Systems
In PLCs and industrial automation, this transceiver can drive long bus lines with its 48mA sink capability, ensuring robust signal integrity over extended distances.
Redundant System Design
The 3-state outputs allow multiple transceivers to be connected to the same bus, enabling redundant or fault-tolerant architectures where a failed device can be isolated.
- Q: What is the logic family of the CY54FCT646CTLMB?
- A: It belongs to the 54FCT logic family, known for high-speed, low-power operation.
- Q: What function does this IC perform?
- A: It is a non-inverting transceiver with 3-state outputs, ideal for bidirectional bus communication.
- Q: How many channels does it have?
- A: It has 1 channel, typically an 8-bit bus transceiver.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for high-impedance states to enable bus sharing.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
- Q: What package is available?
- A: It comes in a 28-CLCC (ceramic leadless chip carrier) package.
CY54FCT646CTLMB.pdf
- Q: What is the logic family of the CY54FCT646CTLMB?
- A: It belongs to the 54FCT logic family, known for high-speed, low-power operation.
- Q: What function does this IC perform?
- A: It is a non-inverting transceiver with 3-state outputs, ideal for bidirectional bus communication.
- Q: How many channels does it have?
- A: It has 1 channel, typically an 8-bit bus transceiver.
- Q: What is the output type?
- A: The outputs are 3-State, allowing for high-impedance states to enable bus sharing.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it suitable for 5V systems.
- Q: What package is available?
- A: It comes in a 28-CLCC (ceramic leadless chip carrier) package.