Overview
The SN74HCT541PWT is an octal buffer and line driver produced by Texas Instruments. This component is designed to offer high performance and ease of use in various digital circuit applications. It is part of the ’HCT541 series, which is known for its compatibility with the popular ’HC240 series devices. The SN74HCT541PWT features a pinout with inputs and outputs on opposite sides of the package, greatly facilitating printed circuit board layout.
Key Specifications
| Parameter | Unit | Min | Nom | Max |
|---|---|---|---|---|
| VCC (Supply Voltage) | V | 4.5 | 5 | 5.5 |
| VIH (High-Level Input Voltage) | V | 2 | 2 | |
| VIL (Low-Level Input Voltage) | V | 0.8 | 0.8 | |
| IOH (High-Level Output Current) | mA | -20 | -6 | |
| IOL (Low-Level Output Current) | mA | 20 | 6 | |
| ICC (Supply Current) | µA | 8 | 80 | |
| tpd (Propagation Delay) | ns | 12 | 21 | |
| TA (Operating Free-Air Temperature) | °C | -40 | 85 | |
| RθJA (Junction-to-Ambient Thermal Resistance) | °C/W | 131.8 |
Key Features
- Operating voltage range of 4.5 V to 5.5 V
- High-current 3-state outputs that can interface directly with system bus or drive up to 15 LSTTL loads
- Low power consumption, with a maximum ICC of 80 µA
- Typical propagation delay of 12 ns
- ±6-mA output drive at 5 V
- Low input current of 1 µA max
- Inputs are TTL-voltage compatible
- Data flow-through pinout with inputs and outputs on opposite sides of the package
Applications
The SN74HCT541PWT is suitable for a variety of digital circuit applications, including:
- Buffering and driving signals in digital systems
- Interface circuits between different logic families
- Driving long cables or lines in digital systems
- Implementing 3-state logic in digital circuits
Q & A
- What is the operating voltage range of the SN74HCT541PWT?
The operating voltage range is from 4.5 V to 5.5 V.
- What is the maximum number of LSTTL loads that the SN74HCT541PWT can drive?
The SN74HCT541PWT can drive up to 15 LSTTL loads.
- What is the typical propagation delay of the SN74HCT541PWT?
The typical propagation delay is 12 ns.
- What is the maximum supply current (ICC) of the SN74HCT541PWT?
The maximum supply current is 80 µA.
- Are the inputs of the SN74HCT541PWT TTL-voltage compatible?
- What is the thermal resistance (RθJA) for the TSSOP package of the SN74HCT541PWT?
The junction-to-ambient thermal resistance for the TSSOP package is 131.8 °C/W.
- What is the purpose of the 3-state control gate in the SN74HCT541PWT?
The 3-state control gate is a 2-input NOR gate. If either output-enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state.
- What are the benefits of the data flow-through pinout in the SN74HCT541PWT?
The data flow-through pinout, with inputs and outputs on opposite sides of the package, greatly facilitates printed circuit board layout.
- What is the recommended operating temperature range for the SN74HCT541PWT?
The recommended operating temperature range is from -40°C to 85°C.
- What is the maximum continuous output current for the SN74HCT541PWT?
The maximum continuous output current is ±35 mA.
