Overview
The SN74CBTD3861PWRE4, produced by Texas Instruments, is a 10-bit FET bus switch with level-shifting capabilities. This device is designed to provide high-speed TTL-compatible bus switching, making it suitable for applications requiring fast edge rates and minimal propagation delay. The SN74CBTD3861PWRE4 features a single output-enable (OE) input that controls the connection between two ports, allowing for efficient level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5.5 | V |
| High-Level Control Input Voltage (VIH) | 2 | V | |
| Low-Level Control Input Voltage (VIL) | 0.8 | V | |
| Operating Free-Air Temperature (TA) | -40 | 85 | °C |
| On-State Resistance | 5 | Ω | |
| Propagation Delay (tpd) | 0.35 | ns | |
| Enable Time (ten) | 2.6 | 10 | ns |
| Disable Time (tdis) | 1 | 6 | ns |
| Continuous Channel Current | 128 | mA |
Key Features
- TTL-Compatible Input Levels: The device supports TTL-compatible input levels, ensuring compatibility with a wide range of digital systems.
- Level Shifting: Integrated diodes allow for level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs.
- Low On-State Resistance: The switch has a low on-state resistance of 5 Ω, enabling connections with minimal propagation delay.
- Single Output-Enable Input: The device features a single OE input that controls the connection between the two ports.
- High-Speed Operation: Designed for high-speed applications with fast edge rates and multiple outputs switching.
Applications
- High-Speed Data Transfer: Ideal for applications requiring fast data transfer rates, such as in high-speed buses and data communication systems.
- Level Shifting: Suitable for systems that need to interface between different voltage levels, such as 5-V to 3.3-V transitions.
- Digital Systems: Used in various digital systems where TTL-compatible signals are required, including embedded systems, networking equipment, and consumer electronics.
Q & A
- What is the primary function of the SN74CBTD3861PWRE4?
The primary function is to provide 10 bits of high-speed TTL-compatible bus switching with level-shifting capabilities.
- What is the operating voltage range for the SN74CBTD3861PWRE4?
The operating voltage range is from 4.5 V to 5.5 V.
- How does the level-shifting feature work?
The device integrates diodes to allow level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs.
- What is the on-state resistance of the switch?
The on-state resistance is 5 Ω.
- What is the propagation delay of the SN74CBTD3861PWRE4?
The propagation delay (tpd) is 0.35 ns.
- How is the connection between the two ports controlled?
The connection is controlled by a single output-enable (OE) input.
- What are the typical operating temperatures for this device?
The device operates from -40°C to 85°C.
- What is the maximum continuous channel current?
The maximum continuous channel current is 128 mA.
- In what types of applications is the SN74CBTD3861PWRE4 commonly used?
It is commonly used in high-speed data transfer applications, level-shifting scenarios, and various digital systems.
- What are the available package options for the SN74CBTD3861PWRE4?
The device is available in SOIC, SSOP, TSSOP, and TVSOP packages.
