Overview
The 74HCT245D is a high-performance octal bus transceiver produced by Toshiba Semiconductor and Storage. This device is part of the 74HC/HCT series, known for its high-speed Si-gate CMOS technology and compatibility with low power Schottky TTL (LSTTL) logic. The 74HCT245D is designed to facilitate bidirectional data transmission between two sets of eight lines, making it an essential component in various digital systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Function | Octal Bus Transceiver |
| Input Type | TTL Input |
| Output Type | 3-State Output |
| Number of Circuits | 8 |
| Supply Voltage | 4.5V to 5.5V |
| Propagation Delay | 33ns (typical) |
| Package Type | SOP-20, TSSOP-20 |
| RoHS Compliance | Yes |
Key Features
- High-Speed Operation: The 74HCT245D operates at high speeds, with a typical propagation delay of 33ns.
- 3-State Outputs: Each output can be set to a high-impedance state, allowing for bus connection.
- Bidirectional Data Transmission: The device can transmit data in both directions between two sets of eight lines.
- Low Power Consumption: Compatible with low power Schottky TTL (LSTTL) logic, reducing power consumption.
- RoHS Compliance: The device is RoHS compliant, making it suitable for use in environmentally friendly designs.
Applications
- Computer Systems: Used in data transmission and bus management within computer systems.
- Embedded Systems: Suitable for use in embedded systems requiring high-speed data transmission.
- Industrial Control Systems: Applied in industrial control systems for reliable and fast data exchange.
- Telecommunication Equipment: Used in telecommunication equipment for efficient data transmission.
Q & A
- What is the primary function of the 74HCT245D?
The primary function of the 74HCT245D is to act as an octal bus transceiver, facilitating bidirectional data transmission between two sets of eight lines.
- What is the input type of the 74HCT245D?
The input type of the 74HCT245D is TTL (Transistor-Transistor Logic) input.
- What is the output type of the 74HCT245D?
The output type of the 74HCT245D is 3-state output.
- What is the typical propagation delay of the 74HCT245D?
The typical propagation delay of the 74HCT245D is 33ns.
- What are the common package types for the 74HCT245D?
The common package types for the 74HCT245D are SOP-20 and TSSOP-20.
- Is the 74HCT245D RoHS compliant?
Yes, the 74HCT245D is RoHS compliant.
- What is the supply voltage range for the 74HCT245D?
The supply voltage range for the 74HCT245D is 4.5V to 5.5V.
- What are some common applications of the 74HCT245D?
The 74HCT245D is commonly used in computer systems, embedded systems, industrial control systems, and telecommunication equipment.
- Is the 74HCT245D compatible with low power Schottky TTL (LSTTL) logic?
Yes, the 74HCT245D is compatible with low power Schottky TTL (LSTTL) logic.
- Where can I find detailed specifications for the 74HCT245D?
Detailed specifications for the 74HCT245D can be found in the datasheet available on the Toshiba Semiconductor and Storage website or through distributors like Digi-Key and Mouser.
