Overview
The SN74HCT541DWRG4 is an octal buffer and line driver produced by Texas Instruments. This device is part of the ’HCT series, designed to offer high performance and ease of use in various digital circuit applications. It features a data flow-through pinout, where all inputs are on one side of the package and all outputs are on the opposite side, greatly facilitating printed circuit board layout. The device is compatible with the popular ’HC240 series and provides true data at the outputs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5 | 5.5 | V |
| High-Level Input Voltage (VIH) | 2 | - | 2 | V |
| Low-Level Input Voltage (VIL) | 0.8 | - | 0.8 | V |
| Output Voltage (VO) | 0 | - | VCC | V |
| Propagation Delay (tpd) | 12 | - | 21 | ns |
| Output Drive Current | -6 | - | -6 | mA |
| Input Current | - | - | 1 | µA |
| Operating Free-Air Temperature | -40 | - | 85 | °C |
| Junction-to-Ambient Thermal Resistance (RθJA) | - | - | 109.1 | °C/W |
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 for easy PCB layout
Applications
The SN74HCT541DWRG4 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 large capacitive loads
- Implementing 3-state logic in digital circuits
Q & A
- What is the operating voltage range of the SN74HCT541DWRG4?
The operating voltage range is 4.5 V to 5.5 V.
- What is the maximum propagation delay of the SN74HCT541DWRG4?
The maximum propagation delay is 21 ns at 5 V.
- How many LSTTL loads can the SN74HCT541DWRG4 drive?
The device can drive up to 15 LSTTL loads.
- What is the typical output drive current of the SN74HCT541DWRG4?
The typical output drive current is ±6 mA at 5 V.
- What is the input current of the SN74HCT541DWRG4?
The input current is 1 µA max.
- Are the inputs of the SN74HCT541DWRG4 TTL-voltage compatible?
- What is the junction-to-ambient thermal resistance of the SN74HCT541DWRG4 in the SOIC package?
The junction-to-ambient thermal resistance is 109.1 °C/W.
- What is the purpose of the 3-state control gate in the SN74HCT541DWRG4?
The 3-state control gate is a 2-input NOR that puts all eight outputs in the high-impedance state if either output-enable input is high.
- What is the benefit of the data flow-through pinout in the SN74HCT541DWRG4?
The data flow-through pinout facilitates easy printed circuit board layout by having all inputs on one side and all outputs on the opposite side.
- What are some common applications of the SN74HCT541DWRG4?
