Overview
The 74LVC2244APW/AU118 is an octal buffer/line driver produced by NXP USA Inc., now part of Nexperia. This integrated circuit is designed to provide high-performance buffering and line driving capabilities in a variety of electronic systems. The device features 3-state outputs, making it versatile for use in different application environments. It is particularly useful in mixed 3.3 V and 5 V systems due to its input/output tolerance up to 5.5 V.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Type Number | 74LVC2244APW | Octal buffer/line driver |
| Package | TSSOP20 (SOT360-1) | Thin shrink small outline package, 20 leads |
| VCC (V) | 1.2 - 3.6 | Supply voltage range |
| Logic Switching Levels | CMOS/LVTTL | Logic family |
| Output Drive Capability (mA) | ± 12 | Maximum output current |
| fmax (MHz) | 175 | Maximum frequency |
| Number of Bits | 8 | Total number of bits in the buffer |
| Power Dissipation Considerations | Low power consumption | CMOS low-power consumption |
| Tamb (°C) | -40 to +125 | Operating temperature range |
| ESD Protection | HBM: >2000 V, CDM: >1000 V | Electrostatic discharge protection levels |
Key Features
- 3-State Outputs: The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs, allowing for high-impedance OFF-state when nOE is HIGH.
- Input/Output Tolerance: Inputs can be driven from either 3.3 V or 5 V devices, making it suitable for mixed voltage environments.
- Schmitt-Trigger Action: All inputs have Schmitt-trigger action, making the circuit tolerant of slower input rise and fall times.
- Integrated 30 Ω Termination Resistors: Reduces reflections and improves signal integrity.
- IOFF Circuitry: Provides partial power-down mode operation, preventing backflow current when the device is powered down.
- Overvoltage Tolerant Inputs: Inputs are tolerant up to 5.5 V.
- Compliance with JEDEC Standards: Meets JESD8-7A, JESD8-5A, and JESD8-C/JESD36 standards.
Applications
The 74LVC2244APW/AU118 is widely used in various electronic systems, including:
- Automotive Systems: For reliable and efficient signal buffering in automotive electronics.
- Industrial Control Systems: To ensure robust and stable signal transmission in industrial environments.
- Consumer Electronics: In devices such as smartphones, tablets, and other portable electronics where low power consumption and high reliability are crucial.
- Computing and Networking: For buffering and driving signals in computer peripherals and network equipment.
- Medical Devices: Where precise and reliable signal handling is essential.
Q & A
- What is the primary function of the 74LVC2244APW/AU118?
The primary function is to act as an octal buffer/line driver with 3-state outputs.
- What is the supply voltage range for this device?
The supply voltage range is from 1.2 V to 3.6 V.
- What type of package does the 74LVC2244APW/AU118 come in?
The device comes in a TSSOP20 (SOT360-1) package.
- What is the maximum frequency of operation for this device?
The maximum frequency of operation is 175 MHz.
- Does the 74LVC2244APW/AU118 support mixed voltage environments?
Yes, it supports mixed 3.3 V and 5 V environments.
- What is the purpose of the integrated 30 Ω termination resistors?
The integrated 30 Ω termination resistors reduce reflections and improve signal integrity.
- What is the IOFF circuitry used for?
The IOFF circuitry provides partial power-down mode operation, preventing backflow current when the device is powered down.
- What are the ESD protection levels for this device?
The device has HBM ESD protection exceeding 2000 V and CDM ESD protection exceeding 1000 V.
- What are the operating temperature ranges for the 74LVC2244APW/AU118?
The operating temperature range is from -40 °C to +125 °C.
- What standards does the 74LVC2244APW/AU118 comply with?
The device complies with JESD8-7A, JESD8-5A, and JESD8-C/JESD36 standards.
