Overview
The SN74LV541A, produced by Texas Instruments, is an octal buffer/driver designed for operation over a wide voltage range of 2 V to 5.5 V. This device is ideal for driving bus lines or buffering memory address registers. It features inputs and outputs on opposite sides of the package, facilitating easy printed circuit board layout. The SN74LV541A includes a 3-state control gate with active-low inputs, allowing the outputs to be in a high-impedance state when either output-enable input is high. This device supports mixed-mode voltage operation on all ports and is fully specified for partial-power-down applications using the Ioff feature, which prevents damaging current backflow when the device is powered down.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Operating Voltage | 2 | 5.5 | V | |
| Maximum Propagation Delay (tpd) at 5 V | 6 | ns | ||
| Output Ground Bounce (VOLP) at VCC = 3.3 V, TA = 25°C | < 0.8 | V | ||
| Output VOH Undershoot (VOHV) at VCC = 3.3 V, TA = 25°C | > 2.3 | V | ||
| Operating Temperature (TA) | -40 | 125 | °C | |
| Output High, Low Current | 16 | mA | ||
| Package Type | 20-TSSOP, SSOP, SOIC, etc. |
Key Features
- Wide operating voltage range: 2 V to 5.5 V.
- Support for mixed-mode voltage operation on all ports.
- Ioff feature supports partial-power-down mode operation, preventing damaging current backflow.
- Latch-up performance exceeds 250 mA per JESD 17.
- ESD protection exceeds JESD 22: 3000-V Human-Body Model, 200-V Machine Model, and 2000-V Charged-Device Model.
- Inputs and outputs on opposite sides of the package to facilitate printed circuit board layout.
- 3-state control gate with active-low inputs.
Applications
- Smart grids.
- TVs and set-top-boxes.
- Audio and infotainment systems.
- Servers and network switches.
- Surveillance cameras.
Q & A
- What is the operating voltage range of the SN74LV541A?
The SN74LV541A operates over a voltage range of 2 V to 5.5 V.
- What is the maximum propagation delay at 5 V?
The maximum propagation delay at 5 V is 6 ns.
- What is the output ground bounce (VOLP) at VCC = 3.3 V and TA = 25°C?
The output ground bounce (VOLP) is less than 0.8 V at VCC = 3.3 V and TA = 25°C.
- Does the SN74LV541A support partial-power-down mode operation?
Yes, the SN74LV541A supports partial-power-down mode operation using the Ioff feature.
- What is the latch-up performance of the SN74LV541A?
The latch-up performance exceeds 250 mA per JESD 17.
- What types of ESD protection does the SN74LV541A have?
The SN74LV541A has ESD protection exceeding JESD 22: 3000-V Human-Body Model, 200-V Machine Model, and 2000-V Charged-Device Model.
- What are the typical applications of the SN74LV541A?
Typical applications include smart grids, TVs, set-top-boxes, audio systems, servers, surveillance cameras, and network switches.
- How does the 3-state control gate work in the SN74LV541A?
The 3-state control gate is a two-input AND gate with active-low inputs, so if either output-enable input is high, all corresponding outputs are in the high-impedance state.
- What is the package type of the SN74LV541A?
The SN74LV541A is available in various packages including 20-TSSOP, SSOP, SOIC, and others.
- What is the operating temperature range of the SN74LV541A?
The operating temperature range is from -40°C to 125°C.
