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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | 74FCT |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Transceiver, Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 15mA, 64mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 24-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 24-SOIC |
The 74FCT544ASC is a 1-channel inverting transceiver from National Semiconductor, part of the 74FCT logic family. It operates from 4.75V to 5.25V and features 3-State outputs with 64mA sink capability. Housed in a 24-SOIC package, it is designed for high-speed bus applications in commercial computing and telecommunications systems.
- High Sink Current (64mA): Provides excellent drive for high-capacitance bus lines.
- Fast Propagation Delay: Supports high-frequency data transfer in critical timing applications.
- 3-State Outputs: Enables bus sharing and isolation in multi-device systems.
- Industry-Standard 24-SOIC Package: Easy to integrate into existing PCB designs.
High-Speed Bus Transceivers
The 74FCT544ASC is ideal for high-speed data buses in computing systems. Its 64mA sink capability drives heavily loaded backplanes with minimal signal degradation.
Memory Controller Interfacing
In memory controllers, this transceiver provides bidirectional data transfer between the controller and DRAM, with inverting logic to match specific bus architectures.
Peripheral Component Interconnect
For PCI-like buses, the high drive current and fast propagation delay ensure reliable data transfer between the CPU and peripheral cards.
Telecommunications Switching
In telecom switches, the 3-State outputs allow multiple line cards to share a common data bus, with the transceiver providing necessary isolation.
Industrial Control Backplanes
For industrial controllers, this transceiver buffers data between the CPU and I/O modules, ensuring clean signals in noisy factory environments.
Test Equipment Data Acquisition
The high sink current makes it suitable for driving test equipment data lines, where fast, reliable signal transmission is critical.
- Q: What is the logic family of the 74FCT544ASC?
- A: It belongs to the 74FCT family, known for fast CMOS/TTL-compatible performance.
- Q: What is the function of this IC?
- A: It is a 1-channel, inverting transceiver with 3-State outputs.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, ideal for standard 5V systems.
- Q: What is the output current capability?
- A: It can sink 64mA and source 15mA, providing strong drive for bus lines.
- Q: What package is available?
- A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
- Q: What is the temperature range?
- A: It operates from 0°C to 70°C, suitable for commercial applications.
74FCT544ASC.pdf
- Q: What is the logic family of the 74FCT544ASC?
- A: It belongs to the 74FCT family, known for fast CMOS/TTL-compatible performance.
- Q: What is the function of this IC?
- A: It is a 1-channel, inverting transceiver with 3-State outputs.
- Q: What is the operating voltage range?
- A: It operates from 4.75V to 5.25V, ideal for standard 5V systems.
- Q: What is the output current capability?
- A: It can sink 64mA and source 15mA, providing strong drive for bus lines.
- Q: What package is available?
- A: It comes in a 24-SOIC (0.295", 7.50mm Width) package.
- Q: What is the temperature range?
- A: It operates from 0°C to 70°C, suitable for commercial applications.