Overview
The 74HC244PW, produced by NXP USA Inc., is an octal buffer/line driver with 3-state outputs. This device is part of the 74HC and 74HCT family of high-speed Si-gate CMOS logic devices. It can be used as two 4-bit buffers or one 8-bit buffer, making it versatile for various digital circuit applications. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs, allowing for flexible control over the output states.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Number of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC244PW | 2.0 - 6.0 | CMOS | ± 7.8 | 36 | 8 | Low | -40 ~ 125 | 100 | 44.9 | TSSOP20 |
Key Features
- Wide supply voltage range: From 2.0 V to 6.0 V, making it compatible with a variety of power supply systems.
- CMOS low power dissipation: Low power consumption, which is beneficial for energy-efficient designs.
- High noise immunity: Ensures reliable operation in noisy environments.
- Latch-up performance: Exceeds 100 mA per JESD 78 Class II Level B.
- ESD protection: HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- Non-inverting 3-state outputs: Allows for flexible output control with high-impedance OFF-state when output enable is HIGH.
- Multiple package options: Available in TSSOP20 package, among others.
- Operating temperature range: Specified from -40 °C to +125 °C.
Applications
The 74HC244PW is suitable for a wide range of applications across various industries, including:
- Automotive: For use in automotive electronic systems requiring robust and reliable logic functions.
- Industrial: In industrial control systems, automation, and other high-reliability applications.
- Consumer electronics: For use in consumer devices such as mobile phones, wearables, and other portable electronics.
- Computing and power systems: In computing hardware, power management systems, and other digital circuits requiring buffer and line driver functions.
Q & A
- What is the primary function of the 74HC244PW?
The primary function of the 74HC244PW is to act as an octal buffer/line driver with 3-state outputs, allowing it to be used as two 4-bit buffers or one 8-bit buffer.
- What is the supply voltage range for the 74HC244PW?
The supply voltage range for the 74HC244PW is from 2.0 V to 6.0 V.
- What are the logic switching levels for the 74HC244PW?
The logic switching levels for the 74HC244PW are CMOS levels, while the 74HCT244 has TTL levels.
- What is the maximum output drive capability of the 74HC244PW?
The maximum output drive capability of the 74HC244PW is ± 7.8 mA.
- What is the maximum operating frequency of the 74HC244PW?
The maximum operating frequency of the 74HC244PW is 36 MHz.
- What is the package type for the 74HC244PW?
The 74HC244PW is available in a TSSOP20 package.
- What are the ESD protection levels for the 74HC244PW?
The 74HC244PW has ESD protection levels of HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, and CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- What is the operating temperature range for the 74HC244PW?
The operating temperature range for the 74HC244PW is from -40 °C to +125 °C.
- Is the 74HC244PW RoHS compliant?
Yes, the 74HC244PW is RoHS compliant.
- What industries can the 74HC244PW be used in?
The 74HC244PW can be used in automotive, industrial, consumer electronics, computing, and power systems, among others.
