Overview
The SN74LVTH241DW is an octal buffer/driver IC produced by Texas Instruments. It is designed for low-voltage (3.3-V) VCC operation and can provide a TTL interface to a 5-V system environment. The device is organized as two 4-bit line drivers with separate output-enable inputs, allowing for flexible control over the output states. It features active bus-hold circuitry, which holds unused or undriven inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors. The SN74LVTH241DW is fully specified for hot-insertion applications and includes power-up 3-state and Ioff circuitry to prevent damaging current backflow and driver conflict during power transitions.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (DW) - 20 pins |
| Operating Temperature Range | -40°C to 85°C |
| VCC Range | 2.7 V to 3.6 V |
| Number of Bits | 8 |
| Maximum Frequency at Nominal Voltage | 160 MHz |
| ICC at Nominal Voltage (Max) | 0.005 mA |
| Output Drive (IOL/IOH) (Max) | -32 mA / 64 mA |
| Propagation Delay at Nominal Voltage (Max) | 4.1 ns |
| ESD Protection | 2000-V Human-Body Model, 200-V Machine Model |
| RoHS Compliance | Yes |
Key Features
- Support for mixed-mode signal operation (5-V input and output voltages with 3.3-V VCC)
- Support for unregulated battery operation down to 2.7 V
- Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C
- Ioff and power-up 3-state support for hot insertion
- Bus hold on data inputs eliminates the need for external pullup/pulldown resistors
- Latch-up performance exceeds 500 mA per JESD 17
- ESD protection exceeds JESD 22
Applications
The SN74LVTH241DW is suitable for various applications requiring low-voltage logic and interface solutions, including:
- Low-voltage (3.3-V) system designs
- Mixed-voltage systems needing a seamless interface between 3.3-V and 5-V components
- Hot-insertion applications where devices need to be powered up or down without causing system disruptions
- Systems requiring high ESD protection and latch-up immunity
- General-purpose buffering and line driving in digital circuits
Q & A
- What is the operating voltage range of the SN74LVTH241DW?
The operating voltage range is from 2.7 V to 3.6 V.
- What is the maximum frequency at nominal voltage for the SN74LVTH241DW?
The maximum frequency at nominal voltage is 160 MHz.
- Does the SN74LVTH241DW support hot insertion?
Yes, it supports hot insertion with Ioff and power-up 3-state circuitry.
- What is the purpose of the bus-hold feature in the SN74LVTH241DW?
The bus-hold feature holds unused or undriven inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.
- What is the ESD protection level of the SN74LVTH241DW?
The device has ESD protection exceeding 2000-V Human-Body Model and 200-V Machine Model.
- Is the SN74LVTH241DW RoHS compliant?
Yes, the device is RoHS compliant.
- What is the propagation delay at nominal voltage for the SN74LVTH241DW?
The propagation delay at nominal voltage is 4.1 ns.
- How many bits does the SN74LVTH241DW support?
The device supports 8 bits, organized as two 4-bit line drivers.
- What is the output drive capability of the SN74LVTH241DW?
The output drive capability is -32 mA / 64 mA.
- What package types are available for the SN74LVTH241DW?
The device is available in SOIC (DW) packages with 20 pins.
