Overview
The 74HCT244D,652 is an 8-bit buffer/line driver with 3-state outputs, manufactured by Nexperia USA Inc. This device is part of the 74HC/HCT244 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, allowing for flexible control over the output states.
The device is designed for a wide range of applications, including automotive, industrial, power, computing, consumer, mobile, and wearable devices. It is known for its CMOS low power dissipation and high noise immunity, making it a reliable choice for various electronic designs.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Type Number | 74HCT244D,652 | Orderable part number |
| Package | SO20 (SOT163-1) | 20-pin Small Outline package |
| Supply Voltage Range | 2.0 V to 6.0 V | Wide supply voltage range |
| Input Levels | TTL level | Compatible with TTL input levels |
| Output Type | Non-inverting 3-state outputs | Outputs can be set to high-impedance OFF-state |
| Operating Temperature Range | -40 °C to +85 °C and -40 °C to +125 °C | Specified temperature range for operation |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V | High ESD protection levels |
Key Features
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V, making it versatile for various applications.
- CMOS Low Power Dissipation: Low power consumption, suitable for energy-efficient designs.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- 3-State Outputs: Outputs can be set to high-impedance OFF-state, controlled by two output enables (1OE and 2OE).
- Input Clamp Diodes: Allows the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- Compliance with JEDEC Standards: Meets JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
Applications
The 74HCT244D,652 is widely used in various industries and applications, including:
- Automotive: For reliable and efficient signal buffering in automotive systems.
- Industrial: In industrial control systems and automation.
- Power Systems: For signal buffering in power management and distribution systems.
- Computing: In computer peripherals and interface circuits.
- Consumer Electronics: In mobile devices, wearables, and other consumer electronics.
Q & A
- What is the primary function of the 74HCT244D,652?
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 74HCT244D,652?
The supply voltage range is from 2.0 V to 6.0 V.
- What type of input levels does the 74HCT244D,652 support?
The device supports TTL input levels.
- How are the outputs controlled in the 74HCT244D,652?
The outputs are controlled by two output enables (1OE and 2OE), each controlling four of the 3-state outputs.
- What is the operating temperature range for the 74HCT244D,652?
The device operates from -40 °C to +85 °C and -40 °C to +125 °C.
- What level of ESD protection does the 74HCT244D,652 offer?
The device offers HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V and CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V ESD protection.
- What package type is the 74HCT244D,652 available in?
The device is available in a 20-pin Small Outline package (SO20, SOT163-1).
- Does the 74HCT244D,652 comply with any specific standards?
Yes, it complies with JEDEC standards JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V).
- What are some common applications of the 74HCT244D,652?
Common applications include automotive, industrial, power systems, computing, and consumer electronics.
- How does the 74HCT244D,652 contribute to energy efficiency in designs?
The device contributes to energy efficiency through its CMOS low power dissipation.
