Overview
The 74AHC244PW,112 is an 8-bit buffer/line driver with 3-state outputs, manufactured by Nexperia USA Inc. This device is part of the 74AHC series and can be used as two 4-bit buffers or one 8-bit buffer. It features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. This component is designed for use in mixed voltage environments due to its overvoltage tolerant inputs and supports a wide supply voltage range from 2.0 V to 5.5 V.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 74AHC244PW | 2.0 - 5.5 | CMOS | ± 8 | 60 | 8 | low | -40 ~ 125 | 100 | 44.7 | TSSOP20 |
Key Features
- Wide supply voltage range: Operates from 2.0 V to 5.5 V.
- 3-state outputs: Controlled by two output enables (1OE and 2OE), allowing the outputs to assume a high-impedance OFF-state when nOE is HIGH.
- Overvoltage tolerant inputs: Inputs can tolerate voltages up to 5.5 V, making it suitable for mixed voltage environments.
- Schmitt-trigger action on inputs: Enhances noise immunity.
- Low power dissipation: CMOS technology ensures low power consumption.
- ESD protection: HBM (Human Body Model) exceeds 2000 V and CDM (Charged Device Model) exceeds 1000 V.
- Latch-up performance: Exceeds 100 mA per JESD 78 Class II Level A.
- Multiple package options: Available in TSSOP20, among other packages.
Applications
The 74AHC244PW is versatile and can be used in various applications across different industries, including:
- Automotive: For signal buffering and level translation in automotive systems.
- Industrial: In industrial control systems and automation.
- Consumer electronics: For signal buffering and level translation in consumer devices.
- Mobile and wearables: Due to its low power consumption and compact package.
- Computing and power systems: For reliable signal transmission and level translation.
Q & A
- What is the primary function of the 74AHC244PW?
The primary function is to act as an 8-bit buffer/line driver with 3-state outputs.
- What is the supply voltage range for the 74AHC244PW?
The supply voltage range is from 2.0 V to 5.5 V.
- What type of logic switching levels does the 74AHC244PW support?
The 74AHC244PW supports CMOS logic switching levels.
- What is the maximum output drive capability of the 74AHC244PW?
The maximum output drive capability is ± 8 mA.
- What is the maximum operating frequency of the 74AHC244PW?
The maximum operating frequency is 60 MHz.
- What type of package is the 74AHC244PW available in?
The 74AHC244PW is available in a TSSOP20 package, among others.
- Does the 74AHC244PW have ESD protection?
- What is the temperature range for the 74AHC244PW?
The specified temperature range is from -40 °C to +125 °C.
- Can the 74AHC244PW be used in mixed voltage environments?
- What is the power dissipation characteristic of the 74AHC244PW?
The 74AHC244PW has low power dissipation due to CMOS technology.
