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| Product attributes | Property Value |
| Manufacturer | Harris Corporation |
| Product Series | |
| Packaging | Bulk | |
| Part Status | Active |
| 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) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 56-BSSOP (0.295", 7.50mm Width) |
| Supplier Device Package | 56-BSSOP (0.295", 7.50mm Width) |
The CD74FCT162543TSM from Harris Corporation is a 2-channel non-inverting transceiver designed for bidirectional 5V bus communication. Operating from 4.5V to 5.5V, it provides 3-State outputs on both ports, enabling flexible bus direction control. With 24mA source and sink capability, it ensures reliable signal integrity on medium-length traces. Packaged in a 56-pin BSSOP, this IC is suitable for memory bus isolation, industrial data acquisition, and telecom interfaces.
- Bidirectional 3-State Operation: Allows flexible bus direction control without external logic.
- Wide 4.5V to 5.5V Supply: Accommodates various 5V system tolerances and slight undervoltage conditions.
- Balanced 24mA Drive: Ensures symmetric signal strength for both sourcing and sinking, reducing skew.
- Compact BSSOP Package: Saves board space in high-density designs.
Bidirectional Bus Transceiving
Use the CD74FCT162543TSM to interface two 5V data buses in a multiplexed system. The 3-State outputs on both ports allow the direction to be controlled via a direction pin, preventing data collisions.
Memory Data Bus Isolation
In a memory controller, this transceiver can isolate the CPU data bus from the memory array. When not reading or writing, the outputs can be placed in high-impedance, allowing other devices to use the bus.
Level-Shifting Between 5V and 4.5V Systems
With a supply range down to 4.5V, this device can interface between 5V logic and lower-voltage peripherals that operate at 4.5V, providing a simple level-shifting solution.
Industrial Sensor Data Acquisition
In industrial control systems, this transceiver can buffer and route sensor data from multiple 5V analog-to-digital converters to a central processor, ensuring clean signal transfer over longer PCB traces.
Telecommunications Line Card Interface
For telecom line cards, the CD74FCT162543TSM can manage data flow between the backplane and line interface units, providing robust 24mA drive for high-speed signaling.
- Q: What is the logic family of the CD74FCT162543TSM?
- A: It is part of the 74FCT logic family, offering high-speed CMOS performance with TTL-compatible inputs.
- Q: What is the function of this device?
- A: It is a non-inverting transceiver with 2 channels, enabling bidirectional data flow between two buses.
- Q: What type of outputs does it have?
- A: It features 3-State outputs on both sides, allowing for controlled bus isolation and direction selection.
- Q: What is the operating voltage range?
- A: The supply voltage range is 4.5V to 5.5V, supporting both 5V and slightly lower voltage systems.
- Q: What is the package type?
- A: It is available in a 56-pin BSSOP (0.295", 7.50mm Width) surface-mount package.
- Q: What is the output current capability?
- A: It can source and sink 24mA on each channel, providing balanced drive for bidirectional lines.
CD74FCT162543TSM.pdf
- Q: What is the logic family of the CD74FCT162543TSM?
- A: It is part of the 74FCT logic family, offering high-speed CMOS performance with TTL-compatible inputs.
- Q: What is the function of this device?
- A: It is a non-inverting transceiver with 2 channels, enabling bidirectional data flow between two buses.
- Q: What type of outputs does it have?
- A: It features 3-State outputs on both sides, allowing for controlled bus isolation and direction selection.
- Q: What is the operating voltage range?
- A: The supply voltage range is 4.5V to 5.5V, supporting both 5V and slightly lower voltage systems.
- Q: What is the package type?
- A: It is available in a 56-pin BSSOP (0.295", 7.50mm Width) surface-mount package.
- Q: What is the output current capability?
- A: It can source and sink 24mA on each channel, providing balanced drive for bidirectional lines.