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| Product attributes | Property Value |
| Manufacturer | Quality Semiconductor |
| Product Series | |
| 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, 64mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC (0.295", 7.50mm Width) |
The QS5244SO is a dual-channel, non-inverting buffer from Quality Semiconductor. It features 3-State outputs and operates from a 4.75V to 5.25V supply. With a sink current of 15mA and a source current of 64mA, it is well-suited for driving high-current loads such as LEDs and relays. The 20-SOIC package is compact and suitable for space-constrained designs. This buffer is ideal for bus buffering, signal fan-out, and peripheral driving in 5V logic systems.
- High Source Current (64mA): Directly drives LEDs and other high-current loads without external drivers.
- 3-State Outputs: Allows multiple devices to share a bus safely.
- Non-Inverting Buffer: Preserves signal polarity, simplifying design.
- Standard 5V Operation: Compatible with legacy 5V logic systems.
LED Driving
The QS5244SO's high source current (64mA) makes it ideal for directly driving LED arrays in display panels or indicator lights without additional transistors.
Bus Buffering
Use it to buffer address or data buses in 5V systems. The 3-State outputs allow multiple buffers to be connected to the same bus.
Signal Fan-Out
In clock distribution, this buffer can drive multiple loads. The non-inverting function ensures the clock polarity is preserved.
Peripheral Drivers
In microcontroller systems, it can drive peripheral devices like relays or small motors. The high source current handles inrush currents.
Memory Systems
Employ it to buffer control signals to memory chips. The 15mA sink current is sufficient for most memory interfaces.
Test and Measurement
In test equipment, it can provide buffered outputs to drive external instruments. The 3-State feature allows output isolation during calibration.
- Q: What is the logic family of the QS5244SO?
- A: It is a standard CMOS logic device, not a specific family like 74LS or 74ACT.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, providing signal amplification and isolation.
- Q: What is the output type?
- A: It has 3-State outputs, allowing the outputs to be disabled for bus sharing.
- Q: What is the voltage range?
- A: It operates from 4.75V to 5.25V, compatible with standard 5V logic.
- Q: What is the package?
- A: It is available in a 20-SOIC (0.295", 7.50mm Width) package.
- Q: What are the output current ratings?
- A: It can sink 15mA and source 64mA, making it suitable for driving high-current loads like LEDs.
QS5244SO.pdf
- Q: What is the logic family of the QS5244SO?
- A: It is a standard CMOS logic device, not a specific family like 74LS or 74ACT.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, providing signal amplification and isolation.
- Q: What is the output type?
- A: It has 3-State outputs, allowing the outputs to be disabled for bus sharing.
- Q: What is the voltage range?
- A: It operates from 4.75V to 5.25V, compatible with standard 5V logic.
- Q: What is the package?
- A: It is available in a 20-SOIC (0.295", 7.50mm Width) package.
- Q: What are the output current ratings?
- A: It can sink 15mA and source 64mA, making it suitable for driving high-current loads like LEDs.