SP485ECN-L/TR: Top Choice in United States (USA) Utsource Holding Company Limited

Description

Parameter	Description	Value
Part Number	Part identification	SP485ECN-L/TR
Package Type	Package style	SOIC-8
Supply Voltage (Vcc)	Operating voltage range	3.0 V to 5.5 V
Data Rate	Maximum data transmission rate	20 Mbps
Operating Temperature	Temperature range for operation	-40°C to +85°C
ESD Protection	Electrostatic discharge protection	±15 kV Human Body Model
Driver Output Current	Maximum output current from driver pins	±250 mA
Receiver Input Impedance	Receiver input impedance at logic levels	≥12 kΩ
Power Dissipation	Maximum power dissipation	175 mW
Standby Current	Supply current in standby mode	< 1 μA
Driver Enable Time	Time required for the driver to enable	2 μs
Driver Disable Time	Time required for the driver to disable	2 μs

Power Supply Connection: Connect Vcc to a stable power supply within the operating voltage range of 3.0 V to 5.5 V. Ensure GND is properly grounded.
Signal Lines: Connect the A and B terminals to the differential signal lines for RS-485 communication.
Driver Control: Use DE (Driver Enable) pin to control the direction of data transmission. Set DE high to enable transmission, low to receive data.
Receiver Operation: The receiver is always active unless disabled by setting DE high. It operates on the differential signals received on A and B.
Termination Resistors: For optimal performance, especially over long distances or in noisy environments, use termination resistors (typically 120 Ω) at each end of the bus.
ESD Handling: Handle the device with care to avoid damage from electrostatic discharge. Follow standard ESD precautions during installation.
Heat Management: Although the device has a maximum power dissipation of 175 mW, ensure adequate heat sinking if used in high ambient temperatures or enclosed spaces.

(For reference only)