Overview
The SN74CBTD3861PWG4, 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 high-frequency operations. The SN74CBTD3861PWG4 features a low on-state resistance, allowing for minimal propagation delay and efficient connections between ports. It also includes integrated diodes to enable level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs, which is crucial in mixed-voltage systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 10 | |
| Package Type | TSSOP | |
| Number of Pins | 24 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 4.5 to 5.5 | V |
| Input/Output Voltage (Max) | 5.5 | V |
| Input/Output Continuous Current (Max) | 128 | mA |
| ON-state Resistance (Typ) | 5 | Ω |
| OFF-state Leakage Current (Max) | 1 | µA |
| OFF-state Capacitance (Typ) | 4 | pF |
| Bandwidth | 20 | MHz |
Key Features
- High-Speed TTL-Compatible Bus Switching: Provides ten bits of high-speed bus switching with TTL-compatible input levels.
- Low On-State Resistance: Minimal propagation delay due to the low on-state resistance of the switch.
- Level Shifting: Integrated diodes allow for level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs.
- Single Output-Enable (OE) Input: The switch is on when OE is low and off when OE is high, disconnecting the ports.
- Low Power Consumption: Low supply current and minimal leakage current in the off-state.
Applications
- Mixed-Voltage Systems: Ideal for systems that require level shifting between different voltage domains.
- High-Speed Data Transfer: Suitable for applications requiring fast edge rates and high-frequency operations.
- Bus Switching in Digital Systems: Used in various digital systems where bus switching is necessary, such as in computers, networking equipment, and other electronic devices.
- Signal Routing and Multiplexing: Can be used for signal routing and multiplexing in complex digital circuits.
Q & A
- What is the primary function of the SN74CBTD3861PWG4?
The primary function is to provide 10-bit high-speed TTL-compatible bus switching with level-shifting capabilities.
- What is the operating temperature range of the SN74CBTD3861PWG4?
The operating temperature range is -40°C to 85°C.
- What is the typical on-state resistance of the SN74CBTD3861PWG4?
The typical on-state resistance is 5 Ω.
- How many channels does the SN74CBTD3861PWG4 have?
The device has 10 channels.
- What is the maximum input/output continuous current for the SN74CBTD3861PWG4?
The maximum input/output continuous current is 128 mA.
- What is the bandwidth of the SN74CBTD3861PWG4?
The bandwidth is 20 MHz.
- How does the level-shifting feature work in the SN74CBTD3861PWG4?
The device includes integrated diodes that allow for level shifting from 5-V signals at the inputs to 3.3-V signals at the outputs.
- What is the effect of the output-enable (OE) input on the switch?
When OE is low, the switch is on, connecting port A to port B. When OE is high, the switch is off, disconnecting the ports.
- What are the typical applications of the SN74CBTD3861PWG4?
Typical applications include mixed-voltage systems, high-speed data transfer, bus switching in digital systems, and signal routing and multiplexing.
- What is the package type of the SN74CBTD3861PWG4?
The package type is TSSOP (Thin Shrink Small Outline Package) with 24 pins.
