Overview
The 74HCT244PW,118 is an octal buffer/line driver with 3-state outputs, manufactured by Nexperia USA Inc. This integrated circuit is part of the 74HC/74HCT family and is designed to provide high-performance buffering and line driving capabilities. The device can be used as two 4-bit buffers or one 8-bit buffer, making it versatile for various digital circuit applications.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT244PW | 4.5 - 5.5 | TTL | ± 6 | 36 | 8 | Low | -40 to +125 | 100 | 44.9 | TSSOP20 |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, making it suitable for a variety of power supply conditions.
- CMOS Low Power Dissipation: Designed to minimize 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, providing robust protection against latch-up.
- 3-State Outputs: Features two output enables (1OE and 2OE) that control the 3-state outputs, allowing for high-impedance OFF-state when needed.
- Input Clamp Diodes: Enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- ESD Protection: Compliant with ANSI/ESDA/JEDEC JS-001 class 2 (exceeds 2000 V) and ANSI/ESDA/JEDEC JS-002 class C3 (exceeds 1000 V).
Applications
The 74HCT244PW,118 is widely used in various industries and applications, including:
- Automotive Systems: For reliable and efficient signal buffering in automotive electronics.
- Industrial Control Systems: To ensure robust and noise-immune signal transmission in industrial environments.
- Consumer Electronics: In devices such as computers, mobile devices, and wearables where low power consumption and high reliability are crucial.
- Power and Computing Systems: For buffering and driving signals in power management and computing applications.
Q & A
- What is the primary function of the 74HCT244PW,118?
The primary function is to act as an octal buffer/line driver with 3-state outputs, capable of being used as two 4-bit buffers or one 8-bit buffer.
- What is the supply voltage range for the 74HCT244PW,118?
The device operates from 2.0 V to 6.0 V.
- What are the logic switching levels for the 74HCT244PW,118?
The logic switching levels are TTL (Transistor-Transistor Logic) for the 74HCT244PW.
- What is the maximum output drive capability of the 74HCT244PW,118?
The maximum output drive capability is ± 6 mA.
- What is the maximum operating frequency of the 74HCT244PW,118?
The maximum operating frequency is 36 MHz.
- What type of package does the 74HCT244PW,118 come in?
The device comes in a TSSOP20 package.
- What are the temperature ranges for the 74HCT244PW,118?
The device is specified to operate from -40 °C to +125 °C.
- Does the 74HCT244PW,118 have ESD protection?
Yes, it complies with ANSI/ESDA/JEDEC JS-001 class 2 (exceeds 2000 V) and ANSI/ESDA/JEDEC JS-002 class C3 (exceeds 1000 V).
- What are some common applications for the 74HCT244PW,118?
Common applications include automotive systems, industrial control systems, consumer electronics, and power and computing systems.
- How does the 3-state output feature work on the 74HCT244PW,118?
The 3-state outputs are controlled by two output enables (1OE and 2OE), which can put the outputs into a high-impedance OFF-state when needed.
