Overview
The 74LVC244APW is an octal buffer/line driver with 3-state outputs, produced by Nexperia. This device is part of the 74LVC244A and 74LVCH244A series, which are 8-bit buffer/line drivers. They can be used as two 4-bit buffers or one 8-bit buffer, making them versatile for various applications. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. This allows for flexible control over the output states.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Package name |
|---|---|---|---|---|---|---|---|---|
| 74LVC244APW | 1.2 - 3.6 | CMOS/LVTTL | ± 24 | 175 | 8 | low | -40~125 | TSSOP20 |
Key Features
- Wide supply voltage range from 1.2 V to 3.6 V
- CMOS low-power consumption
- Direct interface with TTL levels
- Overvoltage tolerant inputs to 5.5 V
- IOFF circuitry provides partial power-down mode operation
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times
- Bus hold on all data inputs (74LVCH244A only)
- ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V), CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V)
Applications
The 74LVC244APW is suitable for a variety of applications, including:
- Mixed 3.3 V and 5 V environments due to its 5 V tolerant inputs and outputs
- Partial power-down applications using IOFF circuitry
- Systems requiring low power consumption and high output drive capability
- Buffering and line driving in digital circuits
Q & A
- What is the primary function of the 74LVC244APW?
The primary function of the 74LVC244APW is to act as an octal buffer/line driver with 3-state outputs.
- What is the supply voltage range for the 74LVC244APW?
The supply voltage range is from 1.2 V to 3.6 V.
- What are the logic switching levels of the 74LVC244APW?
The logic switching levels are CMOS/LVTTL.
- What is the maximum output drive capability of the 74LVC244APW?
The maximum output drive capability is ± 24 mA.
- What is the maximum frequency of operation for the 74LVC244APW?
The maximum frequency of operation is 175 MHz.
- What type of package does the 74LVC244APW come in?
The 74LVC244APW comes in a TSSOP20 package.
- Does the 74LVC244APW support partial power-down mode?
Yes, it supports partial power-down mode using IOFF circuitry.
- What is the temperature range for the 74LVC244APW?
The operating temperature range is from -40°C to 125°C.
- Is the 74LVC244APW ESD protected?
Yes, it has ESD protection: HBM (ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V), CDM (ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V).
- Can the 74LVC244APW be used in mixed voltage environments?
Yes, it can be used in mixed 3.3 V and 5 V environments due to its 5 V tolerant inputs and outputs.
