The model "SN65LBC184DR" is a part of the Texas Instruments product line, specifically belonging to the SN65LBC18x family of devices, which are Bus Transceivers . The "DR" suffix indicates that this part comes in a SOP-8 package. Below is a detailed breakdown of the information requested:
Overview of the SN65LBC184DR
Brand: Texas Instruments Series: SN65LBC18x family Function: Bus transceiver Package Type: SOP-8 (Small Outline Package)The SN65LBC184DR is a low-voltage differential signaling (LVDS) transceiver that facilitates high-speed, low- Power differential signal communication between devices, commonly used for communication in various bus systems like RS-485.
Pin Function Specifications (in Detail)
The SN65LBC184DR comes in a SOP-8 package, which has 8 pins. Below is the detailed explanation of each pin's function:
Pin Number Pin Name Pin Type Pin Function 1 A Input/Output Differential A: The positive terminal of the differential pair for the bus signal. Used to transmit and receive data in differential mode. 2 B Input/Output Differential B: The negative terminal of the differential pair. This pin, in combination with Pin 1 (A), carries differential signals for data transmission/reception. 3 Vcc Power Supply Positive Power Supply: This pin provides the power supply to the device, usually connected to +5V or +3.3V, depending on system requirements. 4 GND Ground Ground: This pin serves as the reference ground for the device. All signal references are relative to this pin. 5 RE (Receiver Enable) Input Receiver Enable: This pin enables or disables the receiver functionality. When low, it disables the receiver, allowing the bus transceiver to remain in a high-impedance state. 6 DE (Driver Enable) Input Driver Enable: This pin enables or disables the driver functionality. When high, it allows the transceiver to transmit data on the bus. 7 Z Output High Impedance Output: This pin is used for data transmission when the device is enabled. It enters a high-impedance state when both the driver and receiver are disabled. 8 Vee Power Supply Negative Power Supply: This pin typically connects to a negative power supply (such as -5V), which helps define the LVDS signal voltage levels.Pin Function Summary Table
Pin Number Pin Name Pin Function 1 A Differential A (Data Input/Output) 2 B Differential B (Data Input/Output) 3 Vcc Positive Power Supply 4 GND Ground 5 RE Receiver Enable (Input) 6 DE Driver Enable (Input) 7 Z High Impedance Output 8 Vee Negative Power Supply20 Common FAQ for SN65LBC184DR
What is the primary function of the SN65LBC184DR? The SN65LBC184DR is a low-voltage differential signaling (LVDS) bus transceiver designed for high-speed differential data communication.
How many pins does the SN65LBC184DR have? The SN65LBC184DR has 8 pins in total, which are used for power, ground, data transmission, and control.
What is the maximum operating voltage for the SN65LBC184DR? The device operates with a voltage range from 2.7V to 3.6V on the Vcc pin.
What is the package type for SN65LBC184DR? The SN65LBC184DR is available in a SOP-8 package.
Can I use the SN65LBC184DR for RS-485 communication? Yes, the SN65LBC184DR can be used for RS-485 communication, which is a popular standard for differential data transmission.
What is the function of the RE pin? The RE pin (Receiver Enable) controls whether the receiver portion of the transceiver is active or disabled.
What happens when the DE pin is high? When the DE pin (Driver Enable) is high, the transceiver’s driver is enabled, allowing it to transmit data over the differential bus.
What does the Z pin do? The Z pin represents the high-impedance output, which is used when the driver is disabled and is in a tri-state condition.
What is the significance of the Vee pin? The Vee pin connects to the negative power supply and helps maintain proper LVDS voltage levels for signal transmission.
Can the SN65LBC184DR handle both transmission and reception? Yes, the SN65LBC184DR is a transceiver, meaning it can both send and receive differential data signals.
Is it possible to use multiple SN65LBC184DR devices in a system? Yes, multiple devices can be used in a system to create a network of differential signals for communication.
What happens if the Vcc pin is connected incorrectly? If the Vcc pin is connected incorrectly (e.g., to the wrong voltage), the device may be damaged, or it may not function properly.
What is the maximum data rate supported by the SN65LBC184DR? The SN65LBC184DR supports high-speed data rates of up to 400 Mbps.
What is the typical power consumption of the SN65LBC184DR? The device typically consumes very low power, making it suitable for low-power applications.
How should the GND pin be connected? The GND pin should be connected to the system’s ground plane to provide a reference for the signal transmission.
Can the SN65LBC184DR interface with TTL signals? No, the SN65LBC184DR is specifically designed for LVDS signals and is not directly compatible with TTL logic levels.
What kind of termination should be used with the differential bus? Appropriate termination resistors (typically 120 ohms) should be used at both ends of the differential signal bus to minimize signal reflections.
How do I configure the receiver and driver modes? The receiver and driver modes are controlled using the RE and DE pins, respectively, by applying appropriate logic levels (high or low).
Is the SN65LBC184DR ESD-protected? Yes, the SN65LBC184DR is designed with built-in electrostatic discharge (ESD) protection to safeguard against voltage spikes.
How can I ensure proper signal integrity? To maintain signal integrity, ensure that the A and B pins are properly routed and terminated, and use appropriate trace lengths for the differential pairs.
This completes a detailed overview and FAQ for the SN65LBC184DR with all its pins and functionality. Let me know if you need further clarifications!
