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| Product attributes | Property Value |
| Manufacturer | Fairchild Semiconductor |
| Product Series | 74F |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Inverting |
| Number of Elements | 1 |
| Number of Bits per Element | 10 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 15mA, 64mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 24-DIP (0.300", 7.62mm) |
| Supplier Device Package | 24-PDIP |
| ROHS |  |
The 74F828SC is a high-speed inverting buffer from Fairchild Semiconductor, designed for 5V systems. It features a single channel with 3-State outputs, capable of sinking 64mA and sourcing 15mA. Operating from 4.5V to 5.5V, it is ideal for bus-oriented applications requiring strong drive and signal inversion. The 24-DIP package ensures easy integration into through-hole designs. Typical uses include memory address driving, backplane communication, and general-purpose signal buffering in industrial and computing equipment.
- High Drive Current (64mA Sink): Drives heavy capacitive loads and long bus lines without signal degradation.
- 3-State Outputs: Enables bus multiplexing and shared data lines, reducing system complexity.
- Wide 4.5V to 5.5V Supply Range: Directly compatible with standard 5V TTL logic, simplifying power design.
- Inverting Function: Eliminates the need for external inverter ICs in active-low signal paths.
- Proven 74F Family: High-speed bipolar technology ensures fast propagation delays for time-critical applications.
High-Speed Bus Interfacing
Use the 74F828SC to buffer and invert address or data lines in 5V microprocessor systems. Its 64mA sink current handles high-capacitance traces, reducing signal degradation.
Memory Address Driving
In DRAM or SRAM controllers, this buffer provides the necessary drive strength and 3-State capability to multiplex address buses without additional logic.
Signal Inversion in Control Logic
When active-low control signals are needed, the inverting function converts standard logic levels, simplifying PCB layout by eliminating external inverter gates.
Peripheral Interface Buffering
Connect the 74F828SC between a microcontroller and peripheral devices to protect sensitive outputs from external noise and provide a clean, inverted signal path.
Backplane Drivers
In telecom or industrial backplanes, the 3-State outputs allow multiple boards to share a common bus, with the high drive current ensuring signal integrity over long traces.
Test Equipment Signal Conditioning
For benchtop instruments, this buffer can condition and invert TTL-level signals, providing a robust interface for measurement probes and logic analyzers.
- Q: What is the logic family of the 74F828SC?
- A: The 74F828SC belongs to the 74F logic family, known for high-speed bipolar performance.
- Q: What is the function of this IC?
- A: It is a single-channel inverting buffer with 3-State outputs, ideal for bus driving and signal inversion.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses with high-impedance states.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it compatible with standard 5V TTL systems.
- Q: What is the package type?
- A: It comes in a 24-DIP (0.300", 7.62mm) package, suitable for through-hole mounting.
- Q: What are the output current capabilities?
- A: It can source or sink 15mA and 64mA respectively, providing strong drive for capacitive loads.
74F828SC.pdf
- Q: What is the logic family of the 74F828SC?
- A: The 74F828SC belongs to the 74F logic family, known for high-speed bipolar performance.
- Q: What is the function of this IC?
- A: It is a single-channel inverting buffer with 3-State outputs, ideal for bus driving and signal inversion.
- Q: What is the output type?
- A: The outputs are 3-State, allowing connection to shared buses with high-impedance states.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, making it compatible with standard 5V TTL systems.
- Q: What is the package type?
- A: It comes in a 24-DIP (0.300", 7.62mm) package, suitable for through-hole mounting.
- Q: What are the output current capabilities?
- A: It can source or sink 15mA and 64mA respectively, providing strong drive for capacitive loads.