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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 | Through Hole |
| Package / Case | 24-DIP (0.600", 15.24mm) |
| Supplier Device Package | 24-PDIP |
The 74FCT544ASPC 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. Packaged in a 24-DIP (0.600", 15.24mm) format, it is ideal for through-hole PCB designs, prototyping, and legacy system upgrades.
- Through-Hole DIP Package: Ideal for prototyping, breadboarding, and easy manual assembly.
- High Sink Current (64mA): Provides excellent drive for high-capacitance bus lines.
- 3-State Outputs: Enables bus sharing and isolation in multi-device systems.
- Drop-In Replacement: Compatible with legacy 5V logic sockets, simplifying upgrades.
Prototype and Breadboard Development
The 24-DIP package of the 74FCT544ASPC is perfect for prototyping. Engineers can easily insert it into breadboards or wire-wrap sockets for testing bus interface designs.
Legacy System Upgrades
For upgrading older 5V systems, this transceiver provides a drop-in replacement for slower bipolar logic, improving speed and drive capability without redesign.
Educational Laboratory Equipment
In university labs, the DIP package allows students to experiment with bus transceivers, learning about 3-State logic and bidirectional data flow.
Industrial Controller I/O
For industrial controllers with through-hole PCBs, this transceiver buffers data between the CPU and I/O modules, ensuring reliable operation in factory settings.
Test Fixture Design
In test fixtures, the DIP package allows for easy socketing and replacement, facilitating quick changes in test setups.
Low-Volume Production Runs
For small-batch production, through-hole components like this are often preferred for ease of assembly and rework.
- Q: What is the logic family of the 74FCT544ASPC?
- 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-DIP (0.600", 15.24mm) package.
- Q: What is the temperature range?
- A: It operates from 0°C to 70°C, suitable for commercial applications.
74FCT544ASPC.pdf
- Q: What is the logic family of the 74FCT544ASPC?
- 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-DIP (0.600", 15.24mm) package.
- Q: What is the temperature range?
- A: It operates from 0°C to 70°C, suitable for commercial applications.