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| Product attributes | Property Value |
| Manufacturer | Fairchild Semiconductor |
| Product Series | 74FR |
| Packaging | Bulk | |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | - |
| Output Type | 3-State |
| Current - Output High, Low | 15mA, 12mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 20-SOP |
The 74FR2244SJ from Fairchild Semiconductor is a 2-channel non-inverting buffer designed for 5V systems. Operating from 4.5V to 5.5V, it features 3-state outputs with 15mA source and 12mA sink capability. This buffer is ideal for bus interfacing, memory driving, and signal distribution in high-speed digital systems. The 20-SOIC package offers a compact solution for space-constrained boards.
- High-Speed 74FR Family: Provides fast propagation delays for high-frequency applications.
- 3-State Outputs: Enables bus sharing and device isolation, improving system flexibility.
- 5V Operation: Compatible with legacy TTL systems and standard 5V power rails.
- Dual-Channel Design: Offers two independent buffered paths in a single package.
5V Bus Buffering
Use the 74FR2244SJ to buffer address or data lines in 5V microprocessor systems. The 3-state outputs allow multiple devices to share the bus without conflict, while the high-speed 74FR family ensures minimal propagation delay.
Memory Interface Driving
Drive SRAM or DRAM control lines with this buffer. The 15mA source and 12mA sink capabilities provide sufficient drive strength for capacitive loads on memory buses.
Backplane Signal Distribution
In telecom or industrial backplanes, this buffer can fan out signals to multiple card slots. The 3-state feature enables selective enabling of different sections.
Peripheral Device Isolation
Isolate peripherals from the main system bus using the 3-state outputs. This allows powering down peripherals without affecting the main logic.
Test and Measurement Equipment
Buffer test signals in ATE (Automatic Test Equipment) where 5V logic is still prevalent. The fast switching speed of the 74FR family is ideal for high-frequency test patterns.
Legacy System Interfacing
Interface older 5V logic with newer components that require buffered signals. The 74FR2244SJ provides a reliable bridge in mixed-technology designs.
- Q: What is the logic family of the 74FR2244SJ?
- A: It belongs to the 74FR fast logic family.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels.
- Q: What is the output type?
- A: It has 3-state outputs for bus-oriented applications.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, standard for 5V TTL systems.
- Q: What is the package?
- A: It is available in a 20-SOIC package (0.209", 5.30mm width).
- Q: What are the output current capabilities?
- A: It can source 15mA and sink 12mA.
74FR2244SJ.pdf
- Q: What is the logic family of the 74FR2244SJ?
- A: It belongs to the 74FR fast logic family.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels.
- Q: What is the output type?
- A: It has 3-state outputs for bus-oriented applications.
- Q: What is the operating voltage range?
- A: It operates from 4.5V to 5.5V, standard for 5V TTL systems.
- Q: What is the package?
- A: It is available in a 20-SOIC package (0.209", 5.30mm width).
- Q: What are the output current capabilities?
- A: It can source 15mA and sink 12mA.