TC74VHCT244AFT
8-channel non-inverting CMOS buffer/line driver in 20-pin TSSOP package
Manufacturer： toshiba
series introduction
# Introduction to the TC74VHCT244AFT Product Series
## 1. Overview
The TC74VHCT244AFT is a member of a high - performance integrated circuit product series designed to meet the diverse needs of modern electronic systems. This series belongs to the family of octal buffer/line drivers with 3 - state outputs, offering a reliable and efficient solution for signal buffering and driving applications.
## 2. Key Features
### 2.1 Compatibility
- **Voltage Compatibility**: The TC74VHCT244AFT is designed to operate with a wide range of supply voltages, typically from 2.0V to 5.5V. This wide voltage range makes it highly versatile and suitable for use in various electronic devices that may have different power supply requirements. It can interface seamlessly with both 3.3V and 5.0V logic systems, providing flexibility in system design.
- **Logic Compatibility**: It is compatible with TTL (Transistor - Transistor Logic) and CMOS (Complementary Metal - Oxide - Semiconductor) logic levels. This allows for easy integration into existing circuits that use different logic families, reducing the complexity of system design and ensuring smooth communication between different components.
### 2.2 High - Speed Performance
- **Fast Propagation Delay**: The series offers very low propagation delay times, which means that signals can pass through the device with minimal delay. This high - speed operation is crucial in applications where real - time data transfer is required, such as in high - speed data buses, microprocessor interfaces, and communication systems. For example, in a high - speed data acquisition system, the fast propagation delay of the TC74VHCT244AFT ensures that the acquired data can be quickly transferred to the processing unit without significant latency.
- **High - Frequency Operation**: It can operate at relatively high frequencies, enabling it to handle high - speed digital signals. This makes it suitable for use in applications such as clock distribution networks, where accurate and timely signal transmission is essential for the proper functioning of the entire system.
### 2.3 3 - State Outputs
- **Output Control**: The TC74VHCT244AFT features 3 - state outputs, which means that the outputs can be in one of three states: high, low, or high - impedance. The high - impedance state effectively disconnects the output from the circuit, allowing multiple devices to share a common bus without interfering with each other. This is particularly useful in bus - based systems, where multiple devices need to communicate over a single data line. For instance, in a multi - master communication system, the 3 - state outputs of the TC74VHCT244AFT can be used to enable or disable the connection of different devices to the bus as needed.
### 2.4 Low Power Consumption
- **CMOS Technology**: The series is fabricated using advanced CMOS technology, which is known for its low power consumption characteristics. This makes the TC74VHCT244AFT an ideal choice for battery - powered devices or applications where power efficiency is a critical concern. By consuming less power, the device helps to extend the battery life of portable devices and reduces the overall power consumption of the system, leading to cost savings and environmental benefits.
## 3. Package and Pin Configuration
### 3.1 Package Types
The TC74VHCT244AFT is available in a variety of package types, such as the TSSOP (Thin Shrink Small Outline Package) and QFN (Quad Flat No - lead Package). These packages offer different advantages in terms of size, thermal performance, and ease of assembly.
- **TSSOP**: This package is relatively small in size, making it suitable for applications where
Images for reference
20-TSSOP