Details

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BUY 485ECN https://www.utsource.net/itm/p/12444421.html

Parameter	Description	Value
Part Number	485ECN
Type	RS-485 Transceiver
Supply Voltage	Operating Voltage Range	3.0V to 5.5V
Data Rate	Maximum Data Rate	20 Mbps
Driver Output Current	Maximum Driver Output Current	±128 mA
Receiver Input Sensitivity	Receiver Input Sensitivity	±200 mV
Operating Temperature	Industrial Temperature Range	-40°C to +85°C
Storage Temperature	Storage Temperature Range	-65°C to +150°C
ESD Protection	Human Body Model (HBM)	±15 kV
Package	Package Type	SOIC-8
Pin Configuration	Pin Configuration	A, B, R, T, VCC, GND
Power Consumption	Quiescent Current (Typical)	350 μA
Driver Enable	Driver Enable Pin (DE)	Active High
Receiver Enable	Receiver Enable Pin (RE)	Active Low

Instructions for Use:

1. Power Supply:

   • Connect the VCC pin to the power supply (3.0V to 5.5V).
   • Connect the GND pin to the ground.

2. Signal Lines:

   • Connect the A and B pins to the differential data lines.
   • Ensure proper termination resistors (120Ω) are used on the bus to prevent signal reflections.

3. Control Pins:

   • DE (Driver Enable): Set this pin high to enable the driver.
   • RE (Receiver Enable): Set this pin low to enable the receiver.
   • For half-duplex operation, connect DE and RE together and control them with a single signal.

4. Data Transmission:

   • To transmit data, set DE high and send data through the T (Transmit) pin.
   • To receive data, set RE low and read data from the R (Receive) pin.

5. ESD Protection:

   • Handle the device with care to avoid ESD damage.
   • Use proper ESD protection measures during handling and installation.

6. Temperature Considerations:

   • Ensure the operating temperature is within the specified range (-40°C to +85°C).

7. Mounting:

   • Solder the device according to the recommended soldering profile to ensure reliable connections.

(For reference only)