Overview
The 74LVC244AD,112 is an octal buffer/line driver with 3-state outputs, manufactured by Nexperia (previously part of NXP Semiconductors). This device is part of the 74LVC244A and 74LVCH244A series, which are 8-bit buffer/line drivers capable of operating as two 4-bit buffers or one 8-bit buffer. The 74LVC244AD,112 features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. This allows for flexible control over the output states, making it suitable for various digital logic applications.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC244AD | 1.2 - 3.6 | CMOS/LVTTL | ± 24 | 175 | 8 | low | -40 ~ 125 | 85 | 8 | SO20 (SOT163-1) |
Key Features
- 3-State Outputs: The device features 3-state outputs, allowing the outputs to be set to a high-impedance OFF-state when the output enable (nOE) is HIGH.
- Wide Supply Voltage Range: Operates with a supply voltage range from 1.2 V to 3.6 V.
- CMOS Low-Power Consumption: Designed for low power consumption, making it energy-efficient.
- Direct Interface with TTL Levels: Compatible with TTL logic levels, facilitating integration with other TTL-based systems.
- Overvoltage Tolerant Inputs: Inputs are tolerant up to 5.5 V, enhancing robustness in mixed voltage environments.
- IOFF Circuitry: Provides partial power-down mode operation, preventing backflow current when the device is powered down.
- Schmitt-Trigger Action: Inputs feature Schmitt-trigger action, making the circuit tolerant of slower input rise and fall times.
- ESD Protection: Offers high ESD protection, exceeding 2000 V for HBM and 1000 V for CDM.
Applications
- Digital Logic Systems: Suitable for use in various digital logic circuits where buffering and line driving are required.
- Mixed Voltage Environments: Ideal for applications involving mixed 3.3 V and 5 V logic levels due to its input voltage tolerance.
- Low Power Designs: Used in designs where low power consumption is critical, such as in battery-powered devices.
- Industrial and Automotive Systems: Can be used in industrial and automotive applications due to its wide operating temperature range (-40 °C to +125 °C).
Q & A
- Q: What is the primary function of the 74LVC244AD,112?
A: The primary function is to act as an octal buffer/line driver with 3-state outputs.
- Q: What is the supply voltage range for the 74LVC244AD,112?
A: The supply voltage range is from 1.2 V to 3.6 V.
- Q: What is the output drive capability of the 74LVC244AD,112?
A: The output drive capability is ± 24 mA.
- Q: Is the 74LVC244AD,112 compatible with TTL logic levels?
A: Yes, it is compatible with TTL logic levels.
- Q: What is the maximum operating frequency of the 74LVC244AD,112?
A: The maximum operating frequency is 175 MHz.
- Q: Does the 74LVC244AD,112 have ESD protection?
A: Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- Q: Can the 74LVC244AD,112 be used in mixed voltage environments?
A: Yes, it can be used in mixed 3.3 V and 5 V environments due to its input voltage tolerance.
- Q: What is the package type of the 74LVC244AD,112?
A: The package type is SO20 (SOT163-1).
- Q: Is the 74LVC244AD,112 RoHS compliant?
A: Yes, it is RoHS compliant.
- Q: What is the operating temperature range of the 74LVC244AD,112?
A: The operating temperature range is from -40 °C to +125 °C.
