Overview
The 74LVC244ABQ115 is an octal buffer/line driver with 3-state outputs, manufactured by NXP USA Inc. This device is part of the 74LVC family and is designed to operate in a wide range of supply voltages, making it versatile for various applications. It can be used as two 4-bit buffers or one 8-bit buffer, and it features two output enables (1OE and 2OE) that control the 3-state outputs. This component is particularly useful in mixed 3.3 V and 5 V environments due to its ability to interface with both TTL and CMOS logic levels.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC supply voltage | 1.2 | - | 3.6 | V |
| Logic switching levels | CMOS/LVTTL | - | - | - |
| Output drive capability | - | - | ±24 | mA |
| fmax (MHz) | - | - | 175 | MHz |
| Number of bits | - | - | 8 | - |
| Power dissipation considerations | - | - | Low | - |
| Tamb (°C) | -40 | - | 125 | °C |
| Package name | - | - | DHVQFN20 | - |
Key Features
- Wide supply voltage range from 1.2 V to 3.6 V, allowing operation in mixed 3.3 V and 5 V environments.
- CMOS low-power consumption for energy-efficient operation.
- Direct interface with TTL levels, enhancing compatibility with various logic systems.
- Overvoltage tolerant inputs up to 5.5 V, providing robustness against voltage spikes.
- IOFF circuitry for partial power-down mode operation, preventing backflow current when the device is powered down.
- Schmitt-trigger action at all inputs, making the circuit tolerant of slower input rise and fall times.
- Bus hold on all data inputs (for the 74LVCH244A variant).
- Compliance with JEDEC standards: JESD8-7A, JESD8-5A, and JESD8-C/JESD36.
- ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V) and CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
Applications
The 74LVC244ABQ115 is suitable for a variety of applications, including:
- Mixed 3.3 V and 5 V environments where voltage translation is necessary.
- Buffering and line driving in digital circuits.
- Partial power-down applications where IOFF circuitry is beneficial.
- Systems requiring low-power CMOS logic.
- Applications needing robust ESD protection and overvoltage tolerance.
Q & A
- What is the supply voltage range of the 74LVC244ABQ115?
The supply voltage range is from 1.2 V to 3.6 V. - Can the 74LVC244ABQ115 operate in mixed 3.3 V and 5 V environments?
Yes, it can operate in mixed 3.3 V and 5 V environments. - What is the maximum output drive capability of the 74LVC244ABQ115?
The maximum output drive capability is ±24 mA. - What is the maximum operating frequency of the 74LVC244ABQ115?
The maximum operating frequency is 175 MHz. - What type of package does the 74LVC244ABQ115 come in?
The device comes in a DHVQFN20 package. - Does the 74LVC244ABQ115 have ESD protection?
Yes, it has ESD protection: HBM (exceeds 2000 V) and CDM (exceeds 1000 V). - Is the 74LVC244ABQ115 suitable for partial power-down applications?
Yes, it is suitable due to its IOFF circuitry. - What are the operating temperature ranges for the 74LVC244ABQ115?
The operating temperature ranges are from -40 °C to +125 °C. - Does the 74LVC244ABQ115 have Schmitt-trigger action at the inputs?
Yes, it does have Schmitt-trigger action at all inputs. - Is the 74LVC244ABQ115 compliant with any JEDEC standards?
Yes, it complies with JEDEC standards: JESD8-7A, JESD8-5A, and JESD8-C/JESD36.
