Overview
The SN74AHCT244PWG4 is an octal buffer/line driver integrated circuit produced by Texas Instruments. This device is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. It is designed to operate with a 5V supply voltage and is compatible with TTL voltage levels. The SN74AHCT244PWG4 features 3-state outputs, which can be set to a high-impedance state when the OE input is high, making it suitable for various digital logic applications.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Operating Supply Voltage | V | 4.5 | 5 | 5.5 |
| Min Operating Temperature | °C | -40 | ||
| Max Operating Temperature | °C | 85 | ||
| Propagation Delay | ns | 8.4 | ||
| Quiescent Current | μA | 4 | ||
| High Level Output Current | mA | -8 | ||
| Low Level Output Current | mA | 8 | ||
| Number of Bits | 8 | |||
| Number of Pins | 20 | |||
| Package Type | TSSOP |
Key Features
- VCC Optimized at 5V: The device is optimized to operate at a 5V supply voltage.
- Up Voltage Translation: Allows up voltage translation from 3.3V to 5V.
- TTL-Voltage Compatible Inputs: Inputs are compatible with TTL voltage levels.
- Slow Edge Rates: Minimize output ringing.
- 3-State Outputs: Outputs can be set to a high-impedance state when the OE input is high.
- Separate Output-Enable (OE) Inputs: Each 4-bit buffer/line driver has a separate OE input.
Applications
- Digital Logic Circuits: Suitable for various digital logic applications where buffering and line driving are required.
- Microprocessor and Microcontroller Systems: Can be used in systems where data needs to be buffered and driven over long distances.
- Communication Systems: Useful in communication systems for signal buffering and amplification.
- Industrial Control Systems: Can be used in industrial control systems for reliable data transmission.
Q & A
- What is the operating supply voltage range of the SN74AHCT244PWG4?
The operating supply voltage range is from 4.5V to 5.5V.
- What is the maximum operating temperature of the SN74AHCT244PWG4?
The maximum operating temperature is 85°C.
- What is the propagation delay of the SN74AHCT244PWG4?
The propagation delay is typically 8.4 ns.
- Is the SN74AHCT244PWG4 TTL-voltage compatible?
- How many bits does the SN74AHCT244PWG4 have?
The device has 8 bits, organized as two 4-bit buffers/line drivers.
- What type of outputs does the SN74AHCT244PWG4 have?
The device has 3-state outputs.
- How should the OE input be managed during power-up or power-down?
The OE input should be tied to VCC through a pullup resistor to ensure the high-impedance state during power-up or power-down.
- Is the SN74AHCT244PWG4 RoHS compliant?
- What is the package type of the SN74AHCT244PWG4?
The package type is TSSOP.
- What is the quiescent current of the SN74AHCT244PWG4?
The quiescent current is typically 4 μA.
