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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| 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 | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 20-DIP (0.300", 7.62mm) |
| Supplier Device Package | 20-PDIP |
The SN74HCT244AN from Texas Instruments is a reliable non-inverting buffer in the 74HCT logic family. It features two channels with 3-State outputs, operating from a 4.5V to 5.5V supply. With 6mA source and sink capability, it is well-suited for driving logic inputs and small loads. The 20-DIP package is perfect for through-hole designs and breadboard prototyping, making it a versatile choice for both new designs and legacy system maintenance.
- TTL-Compatible Inputs: Ensures seamless integration with 5V TTL logic, reducing design complexity.
- 3-State Outputs: Provides bus isolation and allows multiple devices to share a common data path.
- Wide 4.5V-5.5V Supply: Accommodates standard 5V power rails with tolerance for voltage fluctuations.
- DIP Package: Ideal for prototyping, repair, and applications requiring through-hole components.
Microcontroller I/O Expansion
Use this buffer to increase the fan-out of a microcontroller's GPIO pins. The 3-State outputs allow multiple peripherals to share the same data lines.
TTL to CMOS Interfacing
The 74HCT family is designed to be pin-compatible and electrically compatible with TTL logic, making it perfect for mixed-logic systems.
Legacy System Buffering
In systems with older 5V TTL components, this buffer provides a reliable interface, ensuring signal levels are maintained.
Through-Hole Prototyping
The DIP package is breadboard-friendly, making it excellent for prototyping and educational purposes.
Peripheral Driver
It can drive multiple low-power peripherals like LEDs (with resistors) or optocouplers, providing a clean buffered signal.
Bus Isolation
The 3-State control allows the buffer to be placed in high-impedance mode, effectively isolating sections of a circuit when needed.
- Q: What is the logic family of the SN74HCT244AN?
- A: It is from the 74HCT family, which is TTL-compatible CMOS logic.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, used for signal buffering and line driving.
- Q: What is the output type?
- A: It has 3-State outputs, allowing for connection to multiplexed buses.
- Q: What is the supply voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for 5V applications.
- Q: What is the output current capability?
- A: It can source and sink 6mA, suitable for driving standard logic inputs.
- Q: What package is available?
- A: It is available in a 20-DIP (0.300", 7.62mm) package, ideal for through-hole prototyping.
SN74HCT244AN.pdf
- Q: What is the logic family of the SN74HCT244AN?
- A: It is from the 74HCT family, which is TTL-compatible CMOS logic.
- Q: What is the function of this IC?
- A: It is a non-inverting buffer with 2 channels, used for signal buffering and line driving.
- Q: What is the output type?
- A: It has 3-State outputs, allowing for connection to multiplexed buses.
- Q: What is the supply voltage range?
- A: It operates from 4.5V to 5.5V, making it ideal for 5V applications.
- Q: What is the output current capability?
- A: It can source and sink 6mA, suitable for driving standard logic inputs.
- Q: What package is available?
- A: It is available in a 20-DIP (0.300", 7.62mm) package, ideal for through-hole prototyping.