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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | 74HCT |
| 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 | 6mA, 6mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.209", 5.30mm Width) |
| Supplier Device Package | 20-SOIC |
| ROHS |  |
The MC74HCT244AFR2 is a non-inverting buffer from onsemi, designed for 5V systems. It operates from 4.5V to 5.5V and provides 6mA output current per channel. The 3-State outputs enable bus-oriented applications, while the 74HCT family offers TTL-compatible inputs. With an extended temperature range of -55°C to 125°C, it is well-suited for automotive and industrial applications. The 20-SOIC package provides a compact solution for signal buffering and line driving.
- Extended Temperature Range (-55°C to 125°C): Reliable operation in automotive and aerospace environments.
- TTL-Compatible Inputs: Easy interfacing with 3.3V logic without additional components.
- 3-State Outputs: Enables shared bus architectures with high-impedance control.
- Low Power Consumption: CMOS technology minimizes power draw in battery-powered systems.
Automotive ECU Signal Conditioning
The -55°C to 125°C temperature range makes this buffer ideal for automotive engine control units, where temperature extremes are common. It buffers sensor signals to the microcontroller without distortion.
Industrial Sensor Interfacing
In factory automation, this buffer isolates sensitive logic from noisy industrial environments. The 3-State outputs allow multiple sensors to share a single data line.
Level Shifting for Legacy 5V Systems
The TTL-compatible inputs allow direct connection to 3.3V logic while operating at 5V, enabling seamless integration of newer components with legacy 5V infrastructure.
Memory Address Buffering in Embedded Systems
For systems with multiple memory banks, this buffer provides the necessary drive to address lines while maintaining signal integrity over longer traces.
Port Expansion for Microcontrollers
By using 3-State outputs, designers can expand the number of peripherals connected to a single microcontroller port, reducing pin count requirements.
Test and Measurement Equipment
The wide temperature range and reliable performance make it suitable for benchtop instruments that must operate consistently across varying ambient conditions.
- Q: What logic family does the MC74HCT244AFR2 belong to?
- A: It is part of the 74HCT family, which is CMOS-based with TTL-compatible input thresholds.
- Q: What is the function of this device?
- A: It is a non-inverting buffer with 2 channels, used for signal amplification and isolation.
- Q: What is the output type?
- A: It has 3-State outputs, allowing multiple devices to share a common bus.
- Q: What is the voltage range?
- A: It operates from 4.5V to 5.5V, optimized for 5V logic systems.
- Q: What is the output current?
- A: It can source and sink 6mA, suitable for standard logic loads.
- Q: What is the operating temperature range?
- A: It operates from -55°C to 125°C, making it suitable for extreme environments.
MC74HCT244AFR2.pdf
- Q: What logic family does the MC74HCT244AFR2 belong to?
- A: It is part of the 74HCT family, which is CMOS-based with TTL-compatible input thresholds.
- Q: What is the function of this device?
- A: It is a non-inverting buffer with 2 channels, used for signal amplification and isolation.
- Q: What is the output type?
- A: It has 3-State outputs, allowing multiple devices to share a common bus.
- Q: What is the voltage range?
- A: It operates from 4.5V to 5.5V, optimized for 5V logic systems.
- Q: What is the output current?
- A: It can source and sink 6mA, suitable for standard logic loads.
- Q: What is the operating temperature range?
- A: It operates from -55°C to 125°C, making it suitable for extreme environments.