Overview
The SN74HC541DWR is an octal buffer and line driver produced by Texas Instruments. This device is part of the SNx4HC541 family and is known for its wide operating voltage range and high-current 3-state outputs. It features a data flow-through pinout, where inputs and outputs are located on opposite sides of the package, facilitating easy printed circuit board layout. The device is suitable for a variety of applications due to its robust performance and versatile design.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | -0.5 | 7 | V | |
| Operating Free-Air Temperature (SN74HC541) | -40 | 85 | °C | |
| Input Voltage | 0 | VCC | V | |
| Output Voltage | 0 | VCC | V | |
| Continuous Output Current | ±35 | mA | ||
| Input Transition Rise and Fall Time (VCC = 6 V) | 400 | ns | ||
| Propagation Delay Time (tpd) at VCC = 5 V, CL = 50 pF | 29 | 38 | ns | |
| Output Drive at VCC = 5 V | ±6 | mA | ||
| Low Input Current | 1 | µA | ||
| Power Consumption (ICC) at VCC = 6 V | 8 | µA |
Key Features
- Wide operating voltage range of 2 V to 6 V
- High-current 3-state outputs capable of driving bus lines directly or up to 15 LSTTL loads
- Low power consumption with a maximum ICC of 80 µA
- Typical propagation delay time (tpd) of 10 ns
- ±6-mA output drive at 5 V
- Low input current of 1 µA maximum
- Data flow-through pinout with inputs and outputs on opposite sides of the package
- Output enables controlled by two-input NOR gate
Applications
- LEDs
- Servers
- PCs and Notebooks
- Wearable Health and Wellness Devices
- Electronic Points of Sale
Q & A
- What is the operating voltage range of the SN74HC541DWR?
The operating voltage range is from 2 V to 6 V.
- What is the maximum output current of the SN74HC541DWR?
The maximum continuous output current is ±35 mA.
- How many inputs and outputs does the SN74HC541DWR have?
The device has 8 inputs and 8 outputs.
- What is the typical propagation delay time (tpd) of the SN74HC541DWR at VCC = 5 V and CL = 50 pF?
The typical propagation delay time is 29 ns.
- How are the output enables controlled in the SN74HC541DWR?
The output enables are controlled by a two-input NOR gate. Both OE1 and OE2 must be low to enable the outputs.
- What is the power consumption of the SN74HC541DWR at VCC = 6 V?
The maximum power consumption (ICC) is 8 µA.
- What is the input current of the SN74HC541DWR?
The maximum input current is 1 µA.
- What are the typical applications of the SN74HC541DWR?
Typical applications include LEDs, servers, PCs and notebooks, wearable health and wellness devices, and electronic points of sale.
- How does the pinout of the SN74HC541DWR facilitate PCB layout?
The data flow-through pinout, with inputs and outputs on opposite sides of the package, greatly facilitates printed circuit board layout.
- What is the thermal information for the SN74HC541DWR?
The thermal information varies by package type, with detailed specifications available in the datasheet.
