Overview
The 74HCT244D,653 is a high-speed Si-gate CMOS device from Nexperia, part of their 74HCT series. This component functions as a buffer and line driver with non-inverting functionality and 3-state outputs. It is designed to provide robust performance and compatibility with TTL levels, making it versatile for various digital systems. The device can be used as two 4-bit buffers or one 8-bit buffer, enhancing its utility in different applications.
Key Specifications
| Parameter | Value |
|---|---|
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current Output High, Low | 6mA, 6mA |
| Voltage Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (SOT163-1) |
Key Features
- Contains two 4-bit, non-inverting buffers with 3-state outputs, enabling shared bus applications.
- High noise immunity and symmetrical output impedance for reliable operation.
- Balance propagation delays to ensure consistent signal timing.
- Input protection from static discharge and CMOS low power consumption.
- Compatible with TTL levels and operates within a wide voltage range (4.5V to 5.5V).
- Capable of operating in extreme temperatures ranging from -40°C to 125°C.
- Designed for surface mount application, simplifying PCB design.
- High ESD rating, offering protection during handling and operation.
Applications
- Memory address drivers and clock drivers.
- Bus-oriented transmissions and data buffering in PC motherboards, servers, and telecommunications equipment.
Q & A
- What is the primary function of the 74HCT244D,653?
The 74HCT244D,653 functions as a buffer and line driver with non-inverting functionality and 3-state outputs.
- What are the key specifications of the 74HCT244D,653?
It includes two 4-bit non-inverting buffers, 3-state outputs, 6mA output drive capability, and operates within a voltage range of 4.5V to 5.5V.
- What is the operating temperature range of the 74HCT244D,653?
The device operates in temperatures ranging from -40°C to 125°C.
- Is the 74HCT244D,653 compatible with TTL signals?
Yes, it is compatible with TTL levels, ensuring easy integration into existing digital systems.
- What type of package does the 74HCT244D,653 come in?
The device is packaged in a 20-SOIC (SOT163-1) surface mount package.
- What are some of the key features of the 74HCT244D,653?
It features high noise immunity, symmetrical output impedance, balanced propagation delays, and input protection from static discharge.
- What are the typical applications of the 74HCT244D,653?
It is used in memory address drivers, clock drivers, bus-oriented transmissions, and data buffering in PC motherboards, servers, and telecommunications equipment.
- Does the 74HCT244D,653 have ESD protection?
Yes, it has a high ESD rating, offering protection during handling and operation.
- Is the 74HCT244D,653 still in production?
Yes, the 74HCT244D,653 is currently active and continuously supported with no immediate discontinuation expected.
- What are the benefits of using the 74HCT244D,653 in power-sensitive applications?
The device has CMOS low power consumption, making it suitable for power-sensitive applications.
