Overview
The SN74LVTH244ARGYR is a 3.3-V ABT (Advanced BiCMOS Technology) octal buffer/driver with 3-state outputs, manufactured by Texas Instruments. This device is designed for low-voltage operation and is capable of providing a TTL interface to a 5-V system environment. It is organized as two 4-bit line drivers with separate output-enable (OE) inputs, making it suitable for asynchronous communication between data buses.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range (VCC) | 2.7 to 3.6 | V |
| Input Voltage Range (VI) | -0.5 to 7 | V |
| Operating Temperature Range | -40 to 85 | °C |
| High-Level Output Current (IOH) | -24 to -32 | mA |
| Low-Level Output Current (IOL) | 48 to 64 | mA |
| Propagation Delay Time (tPLH, tPHL) | 1.1 to 4.1 | ns |
| Package Type | QFN (RGY) | |
| Pins | 20 |
Key Features
- Operates from 2.7 V to 3.6 V VCC.
- Inputs accept voltages up to 5.5 V.
- Specified from -40°C to +85°C and -40°C to +125°C.
- Maximum propagation delay of 4.1 ns at 3.3 V.
- Supports mixed-mode signal operation on all ports (5-V input or output voltage with 3.3-V VCC).
- Ioff supports live insertion, partial-power-down mode, and back-drive protection.
- Can be used as a down translator to translate inputs from a maximum of 5.5 V down to the VCC level.
- Available in ultra-small logic QFN package (0.5 mm maximum height).
- Latch-up performance exceeds 250 mA per JESD 17.
- ESD protection exceeds JESD 22: 2000-V Human-Body Model and 1000-V Charged-Device Model.
- Active bus-hold circuitry to hold unused or floating data inputs at a valid logic level.
Applications
The SN74LVTH244ARGYR is suitable for various applications requiring low-voltage operation and high-speed data transfer, such as:
- Asynchronous communication between data buses.
- Hot-insertion applications.
- Mixed-mode signal operation environments.
- Systems requiring 3-state output capabilities.
- Embedded systems and microcontrollers.
- Industrial control systems.
Q & A
- What is the operating voltage range of the SN74LVTH244ARGYR?
The operating voltage range is from 2.7 V to 3.6 V.
- What is the maximum propagation delay time at 3.3 V?
The maximum propagation delay time is 4.1 ns at 3.3 V.
- Can the SN74LVTH244ARGYR handle inputs up to 5 V?
- What is the purpose of the output-enable (OE) inputs?
The OE inputs control the state of the outputs; when OE is low, the outputs are active, and when OE is high, the outputs are in the high-impedance state.
- Does the SN74LVTH244ARGYR support hot-insertion applications?
- What type of ESD protection does the SN74LVTH244ARGYR have?
The device has ESD protection exceeding JESD 22: 2000-V Human-Body Model and 1000-V Charged-Device Model.
- What is the package type and pin count of the SN74LVTH244ARGYR?
The device is available in a QFN (RGY) package with 20 pins.
- What is the operating temperature range of the SN74LVTH244ARGYR?
The operating temperature range is from -40°C to +85°C and -40°C to +125°C.
- Does the SN74LVTH244ARGYR have bus-hold circuitry?
- Can the SN74LVTH244ARGYR be used as a down translator?
