Overview
The 74HCT245DB,112 is an octal bus transceiver produced by Nexperia USA Inc. This component is part of the 74HCT series and features 3-state outputs, making it suitable for bidirectional data transmission. The device includes an output enable (OE) and a send/receive (DIR) control for managing data direction. Although this specific part number is discontinued, it remains relevant for existing designs and legacy systems.
Key Specifications
| Parameter | Value |
|---|---|
| Logic Family | HCT |
| Number of Bits | 8-bit |
| Package Type | SSOP20 |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Operating Temperature Range | -40°C to +85°C (and up to +125°C for some versions) |
| Propagation Delay Time | Approx. 33 ns to 74 ns depending on the package |
| Output Current (Low/High) | 6 mA / 6 mA |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
| Mounting Style | SMD/SMT |
Key Features
- Octal Bidirectional Bus Interface: Allows for 8-bit data transmission in both directions.
- 3-State Outputs: Outputs can be set to a high-impedance OFF-state using the output enable (OE) pin.
- Direction Control: Send/receive (DIR) pin controls the direction of data flow.
- Wide Supply Voltage Range: Operates from 4.5 V to 5.5 V.
- CMOS Low Power Dissipation: Low power consumption.
- High Noise Immunity: Robust against noise.
- Input Levels: Compatible with TTL input levels.
- ESD Protection: High ESD protection levels.
- Multiple Package Options: Available in various packages such as SSOP20, SOIC20, and TSSOP20.
Applications
- Data Transmission Systems: Ideal for bidirectional data transmission in digital systems.
- Computer Interfaces: Used in various computer interfaces and peripherals.
- Automotive Systems: Suitable for automotive applications due to its robustness and wide operating temperature range.
- Industrial Control Systems: Used in industrial control systems requiring reliable data transmission.
Q & A
- What is the primary function of the 74HCT245DB,112?
The primary function is to act as an octal bus transceiver, enabling bidirectional data transmission between two data buses.
- What are the key control pins on the 74HCT245DB,112?
The key control pins are the output enable (OE) and the send/receive (DIR) pins.
- What is the supply voltage range for the 74HCT245DB,112?
The supply voltage range is from 4.5 V to 5.5 V.
- What are the input levels compatible with the 74HCT245DB,112?
The input levels are compatible with TTL levels.
- What is the propagation delay time for the 74HCT245DB,112?
The propagation delay time is approximately 33 ns to 74 ns depending on the package.
- Does the 74HCT245DB,112 have ESD protection?
- What are the operating temperature ranges for the 74HCT245DB,112?
The operating temperature range is from -40°C to +85°C (and up to +125°C for some versions).
- Is the 74HCT245DB,112 still in production?
No, this specific part number is discontinued.
- What are the common applications of the 74HCT245DB,112?
Common applications include data transmission systems, computer interfaces, automotive systems, and industrial control systems.
- What package types are available for the 74HCT245 series?
Available package types include SSOP20, SOIC20, and TSSOP20.
