The part number "SN65LBC184DR" belongs to Texas Instruments (TI). It is a Low-Speed Differential transceiver for RS-485/RS-422 communication.
Package Type:
The package type for the "SN65LBC184DR" is a DIP-20 package, which means it has 20 pins.
Pin Function Specifications for SN65LBC184DR (DIP-20)
Pin Number Pin Name Pin Function Description 1 A Non-inverting input of differential bus 2 B Inverting input of differential bus 3 RE Receiver enable, active low 4 DE Driver enable, active high 5 RO Receiver output 6 GND Ground 7 VCC Supply voltage (typically 5V) 8 Y Transmitter output, active high 9 Z Transmitter output, active low 10 A Non-inverting input of differential bus (second pair) 11 B Inverting input of differential bus (second pair) 12 RE Receiver enable, active low (second pair) 13 DE Driver enable, active high (second pair) 14 RO Receiver output (second pair) 15 GND Ground (second pair) 16 VCC Supply voltage (second pair) 17 Y Transmitter output, active high (second pair) 18 Z Transmitter output, active low (second pair) 19 A Non-inverting input of differential bus (third pair) 20 B Inverting input of differential bus (third pair)Detailed Explanation of the Pin Functions
Pin 1 (A): This pin is the non-inverting input for the differential bus. The A pin is used in conjunction with the B pin for differential data transmission. Pin 2 (B): This pin is the inverting input for the differential bus. Used with the A pin for differential data transmission. Pin 3 (RE): The receiver enable pin, which activates or disables the receiver section of the transceiver. This pin is active low, meaning when it is low, the receiver is enabled, and when it is high, the receiver is disabled. Pin 4 (DE): The driver enable pin, which controls the driver section of the transceiver. This pin is active high, meaning when it is high, the driver is enabled, and when it is low, the driver is disabled. Pin 5 (RO): The receiver output, providing the data received from the bus to the system. This pin is active when the receiver is enabled. Pin 6 (GND): Ground pin, used for the electrical reference of the device. Pin 7 (VCC): The power supply pin for the device, typically receiving a 5V supply voltage. Pin 8 (Y): Transmitter output for the positive side of the differential signal. When the device is driving the bus, this pin outputs the signal. Pin 9 (Z): Transmitter output for the negative side of the differential signal. Pins 10-20 (A, B, RE, DE, RO, Y, Z): These pins mirror the function of pins 1-9 and provide a second pair of differential bus drivers and receivers.Common FAQs for SN65LBC184DR
Q1: What is the SN65LBC184DR used for? A1: The SN65LBC184DR is used for differential data transmission, specifically for RS-485/RS-422 communication. It is commonly used in industrial automation systems and other long-distance communication systems.
Q2: What is the package type for SN65LBC184DR? A2: The SN65LBC184DR comes in a DIP-20 package, meaning it has 20 pins.
Q3: How many pins does the SN65LBC184DR have? A3: The SN65LBC184DR has a total of 20 pins in its DIP-20 package.
Q4: What supply voltage does the SN65LBC184DR require? A4: The SN65LBC184DR typically operates with a supply voltage of 5V.
Q5: What is the function of the RE pin? A5: The RE pin is the receiver enable pin. It is active low, meaning the receiver is enabled when RE is low.
Q6: What is the function of the DE pin? A6: The DE pin is the driver enable pin. It is active high, meaning the driver is enabled when DE is high.
Q7: Can the SN65LBC184DR be used in both half-duplex and full-duplex modes? A7: Yes, the SN65LBC184DR can be used in half-duplex or full-duplex communication depending on the configuration of the transceiver.
Q8: What is the maximum data rate for the SN65LBC184DR? A8: The maximum data rate for the SN65LBC184DR is typically 10 Mbps.
Q9: What is the difference between pins A and B? A9: Pins A and B are the differential input pins. A is the non-inverting input, and B is the inverting input for the bus signals.
Q10: What does the RO pin represent? A10: The RO pin is the receiver output, which provides the data received from the differential bus to the system.
Q11: Can the SN65LBC184DR interface with other RS-485 transceivers? A11: Yes, the SN65LBC184DR can interface with other RS-485 transceivers for communication in multi-point networks.
Q12: Is the SN65LBC184DR protected against over-voltage? A12: The SN65LBC184DR has internal protection against short circuits, but additional protection may be needed for severe over-voltage conditions.
Q13: What is the maximum allowable operating temperature for the SN65LBC184DR? A13: The SN65LBC184DR operates within a temperature range of -40°C to 85°C.
Q14: Can the SN65LBC184DR be used for long-distance communication? A14: Yes, the SN65LBC184DR is designed for long-distance communication, up to 4000 feet (1200 meters) depending on the data rate and cable quality.
Q15: What are the key features of the SN65LBC184DR? A15: Key features include differential bus interface, high-speed data transmission, low-power operation, and integrated driver/receiver functions for RS-485/RS-422.
Q16: How do you configure the SN65LBC184DR for half-duplex mode? A16: To configure the SN65LBC184DR for half-duplex mode, you would connect the driver output pins (Y and Z) together and control the RE and DE pins accordingly.
Q17: How do you control the direction of data flow? A17: The direction of data flow is controlled by the DE pin for the driver section and the RE pin for the receiver section.
Q18: What is the significance of the VCC pin? A18: The VCC pin provides the supply voltage (typically 5V) for the operation of the SN65LBC184DR.
Q19: Can the SN65LBC184DR be used in multi-drop configurations? A19: Yes, the SN65LBC184DR is ideal for multi-drop configurations as it supports differential signaling, making it suitable for long-distance, multi-point communication.
Q20: What is the typical application of the SN65LBC184DR? A20: Typical applications include industrial automation, data acquisition systems, and any application requiring robust, long-distance serial communication with RS-485/RS-422 standards.
This is a detailed explanation of the SN65LBC184DR including its pin functions, packaging, and common questions. If you need further assistance or more details, feel free to ask!