onsemi MC74HC244ADWR2G-Q
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.35 | $1.35 |
| 15+ | $1.31 | $19.65 |
| 25+ | $1.28 | $32.00 |
| 50+ | $1.21 | $60.50 |
| 100+ | $1.07 | $107.00 |
| N+ | $0.21 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74HC |
| Packaging | Factory | Cut Tape (CT) |
| 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 | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
| ROHS |  |
The MC74HC244ADWR2G-Q from onsemi is a dual-channel, non-inverting buffer from the 74HC logic family. It operates over a wide 2V to 6V supply range, making it versatile for both 3.3V and 5V applications. Each of its two channels can source or sink 7.8mA, providing robust signal driving capability. The 3-State outputs enable bus-oriented designs where multiple outputs can share a common line. Housed in a compact 20-SOIC package, this buffer is ideal for signal conditioning, bus interfacing, and driving moderate loads in industrial and consumer electronics.
- Wide 2V to 6V Supply Range: Compatible with both 3.3V and 5V logic systems, simplifying mixed-voltage designs.
- 3-State Outputs: Enables bus sharing and prevents bus contention in multi-device systems.
- High-Temperature Range (-55°C to 125°C): Suitable for harsh automotive and industrial environments.
- 7.8mA Output Drive: Sufficient for driving LEDs, relays, and multiple logic inputs without extra components.
Bus Line Driving
Use the MC74HC244ADWR2G-Q to buffer address or data lines in microprocessor systems. The 3-State outputs allow multiple devices to share the same bus without contention, as the high-impedance state effectively disconnects inactive devices.
Signal Buffering for High-Capacitance Loads
When a logic signal needs to drive a long PCB trace or multiple IC inputs, the buffer's 7.8mA output current and low output impedance prevent signal degradation, ensuring clean edges and reliable logic levels.
Level Shifting Between 3.3V and 5V Logic
With a wide 2V to 6V supply range, this buffer can be powered at 5V to accept 3.3V input signals (which are above the VIH threshold) and output a full 5V logic level, simplifying mixed-voltage system design.
LED and Relay Driving
The 7.8mA sink/source capability is sufficient to directly drive indicator LEDs with a series resistor, eliminating the need for separate transistor driver stages in control panels and status displays.
Industrial Sensor Interfacing
In industrial controls, sensors often have weak outputs. This buffer conditions and strengthens these signals before they reach the main controller, improving noise immunity over longer cable runs.
Memory Address Decoding
Use the buffer to fan out address signals to multiple memory banks or peripherals. The 3-State feature is particularly useful for memory expansion, allowing selective enabling of different memory blocks.
- Q: What is the logic family of the MC74HC244ADWR2G-Q?
- A: It belongs to the 74HC (High-Speed CMOS) logic family, offering a good balance of speed and power efficiency.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, designed to strengthen signals for driving heavier loads.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing the outputs to be disabled (high-impedance) for bus-oriented applications.
- Q: What is the operating voltage range?
- A: The supply voltage range is 2V to 6V, making it compatible with 3.3V and 5V systems.
- Q: What is the output current capability?
- A: It can source or sink 7.8mA per output, suitable for driving LEDs and logic inputs.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.295", 7.50mm Width) package, ideal for surface-mount PCBs.
MC74HC244ADWR2G-Q.pdf
- Q: What is the logic family of the MC74HC244ADWR2G-Q?
- A: It belongs to the 74HC (High-Speed CMOS) logic family, offering a good balance of speed and power efficiency.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, designed to strengthen signals for driving heavier loads.
- Q: What type of output does it have?
- A: It features 3-State outputs, allowing the outputs to be disabled (high-impedance) for bus-oriented applications.
- Q: What is the operating voltage range?
- A: The supply voltage range is 2V to 6V, making it compatible with 3.3V and 5V systems.
- Q: What is the output current capability?
- A: It can source or sink 7.8mA per output, suitable for driving LEDs and logic inputs.
- Q: What package is available?
- A: It comes in a 20-SOIC (0.295", 7.50mm Width) package, ideal for surface-mount PCBs.
