Overview
The SN74LVC541AQPWRQ1 is an octal buffer/driver with 3-state outputs, designed and manufactured by Texas Instruments. This device is optimized for operation in the 2.7-V to 3.6-V VCC range, making it suitable for a variety of applications, including driving bus lines and buffering memory address registers. It features inputs and outputs on opposite sides of the package, which facilitates easier printed circuit board layout. The device is also qualified for automotive applications and offers robust ESD protection, exceeding 2000 V per MIL-STD-883, Method 3015, and 200 V using the machine model (C = 200 pF, R = 0).
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage Range | 2 | - | 3.6 | V |
| VI Input Voltage Range | -0.5 | - | 6.5 | V |
| VO Output Voltage Range (High or Low State) | -0.5 | - | VCC + 0.5 | V |
| IOH High-Level Output Current | -100 µA | -12 mA | -24 mA | mA |
| IOL Low-Level Output Current | 100 µA | 12 mA | 24 mA | mA |
| Propagation Delay (tpd) A to Y | 5.6 ns | 5.1 ns | - | ns |
| Operating Free-Air Temperature Range | -40 | - | 125 | °C |
Key Features
- Operates from 2 V to 3.6 V, making it versatile for various voltage environments.
- Inputs accept voltages up to 5.5 V, allowing mixed-mode signal operation with 3.3-V VCC and 5-V input devices.
- 3-state control gate with active-low inputs, enabling all eight outputs to be in the high-impedance state if either output enable (OE1 or OE2) input is high.
- ESD protection exceeds 2000 V per MIL-STD-883, Method 3015, and 200 V using the machine model (C = 200 pF, R = 0).
- Ioff supports partial-power-down mode operation, preventing damaging current backflow through the device when powered down.
- Low propagation delay of 5.1 ns at 3.3 V, and typical output ground bounce (VOLP) < 0.8 V at VCC = 3.3 V, TA = 25°C.
Applications
- Driving bus lines in digital systems.
- Buffering memory address registers.
- Translator in mixed 3.3-V/5-V system environments.
- Automotive applications due to its qualification and robust ESD protection.
- General-purpose buffering and driving in various electronic circuits.
Q & A
- What is the operating voltage range of the SN74LVC541AQPWRQ1?
The device operates from 2 V to 3.6 V.
- What is the maximum input voltage the device can accept?
The device can accept input voltages up to 5.5 V.
- What is the propagation delay of the SN74LVC541AQPWRQ1 at 3.3 V?
The propagation delay is typically 5.1 ns at 3.3 V.
- Does the device support partial-power-down mode?
Yes, the device supports partial-power-down mode using Ioff circuitry.
- What is the ESD protection level of the SN74LVC541AQPWRQ1?
The device exceeds 2000 V per MIL-STD-883, Method 3015, and 200 V using the machine model (C = 200 pF, R = 0).
- What are the typical output ground bounce and output VOH undershoot values?
Typical output ground bounce (VOLP) is < 0.8 V, and output VOH undershoot is > 2 V at VCC = 3.3 V, TA = 25°C.
- Can the device be used in automotive applications?
Yes, the device is qualified for automotive applications.
- What are the package options available for the SN74LVC541AQPWRQ1?
The device is available in SOIC (DW) and TSSOP (PW) packages.
- What is the operating temperature range of the device?
The operating free-air temperature range is from -40°C to 125°C.
- How does the 3-state control gate function?
The 3-state control gate is a 2-input AND gate with active-low inputs, so if either output enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state.
