Overview
The SN74CBTD3861DGVR, 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 minimal propagation delay and level shifting between different voltage levels. The SN74CBTD3861 features a low on-state resistance, allowing for efficient connections between two ports, and includes a diode to VCC for 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 Range (VCC) | -0.5 | 7 | V | |
| Input Voltage Range (VI) | -0.5 | 7 | V | |
| Operating Free-Air Temperature (TA) | -40 | 85 | °C | |
| High-Level Control Input Voltage (VIH) | 2 | V | ||
| Low-Level Control Input Voltage (VIL) | 0.8 | V | ||
| On-State Resistance | 5 | Ω | ||
| Propagation Delay (tPLH/tPHL) | ns (dependent on load and conditions) | |||
| Enable and Disable Times (tPZL/tPZH) | ns (dependent on load and conditions) |
Key Features
- 10-bit FET bus switch with level-shifting capabilities
- Low on-state resistance of 5 Ω for minimal propagation delay
- TTL-compatible input levels
- Level shifting from 5-V signals at inputs to 3.3-V signals at outputs
- Single output-enable (OE) input to control the switch
- High-impedance state when OE is high
- Available in various packages including SOIC, SSOP, TSSOP, and TVSOP
Applications
- High-speed data transmission systems
- Level-shifting applications between different voltage domains
- Bus switching in digital systems
- Signal routing and multiplexing
- Embedded systems requiring low latency and high reliability
Q & A
- What is the primary function of the SN74CBTD3861DGVR?
The primary function is to provide 10-bit FET bus switching with level-shifting capabilities.
- What are the input and output voltage levels supported by this device?
The device supports TTL-compatible input levels and can level-shift from 5-V inputs to 3.3-V outputs.
- How is the switch controlled in the SN74CBTD3861DGVR?
The switch is controlled by a single output-enable (OE) input. When OE is low, the switch is on, and when OE is high, the switch is open.
- What is the on-state resistance of the SN74CBTD3861DGVR?
The on-state resistance is 5 Ω.
- What are the operating temperature ranges for this device?
The operating temperature range is from -40°C to 85°C.
- What types of packages are available for the SN74CBTD3861DGVR?
The device is available in SOIC, SSOP, TSSOP, and TVSOP packages.
- How does the level-shifting feature work in this device?
The device includes a diode to VCC that allows for level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs.
- What are some common applications for the SN74CBTD3861DGVR?
Common applications include high-speed data transmission systems, level-shifting applications, bus switching in digital systems, and signal routing and multiplexing.
- What are the propagation delay times for this device?
The propagation delay times (tPLH/tPHL) are dependent on the load and specific conditions but are generally optimized for high-speed applications.
- How should unused control inputs be handled to ensure proper device operation?
Unused control inputs must be held at VCC or GND to ensure proper device operation.
