Details

---

BUY MAX487EEPA+ https://www.utsource.net/itm/p/12605661.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating range	4.75	-	5.25	V
Input Voltage Range	VI	Differential input voltage	-0.3	-	VCC + 0.3	V
Output Voltage High	VOH	IOL = -6 mA	-	4.2	-	V
Output Voltage Low	VOL	IOH = 6 mA	-	0.4	-	V
Driver Enable Input High	VDEH	VCC = 5 V	-	2.0	-	V
Driver Enable Input Low	VDEL	VCC = 5 V	-	0.8	-	V
Input Current	II	VI = 0 to VCC	-1	-	1	μA
Output Short-Circuit Current	ISC	VCC = 5 V, VO = 0 V	-	-	25	mA
Quiescent Current	IQ	All drivers disabled	-	100	-	μA
Propagation Delay Time	tpd	VCC = 5 V, RL = 56 Ω	-	200	-	ns
Skew	tskew	VCC = 5 V, RL = 56 Ω	-	20	-	ns

Instructions for Using the MAX487EEPA+

1. Power Supply:

   • Connect the V_CC pin to a 5V power supply.
   • Ensure the supply voltage is within the specified range (4.75V to 5.25V).

2. Signal Lines:

   • Connect the differential input lines (DI and /DI) to the data source.
   • Connect the differential output lines (RO and /RO) to the receiver.

3. Driver Enable:

   • Set the DE pin high to enable the driver.
   • Set the DE pin low to disable the driver.

4. Receiver Enable:

   • Set the /RE pin low to enable the receiver.
   • Set the /RE pin high to disable the receiver.

5. Ground Connection:

   • Connect the GND pin to the ground of the system.

6. Termination:

   • For optimal performance, terminate the RS-485 bus with 120Ω resistors at both ends of the bus.

7. Data Rate:

   • The MAX487EEPA+ supports data rates up to 2.5 Mbps. Ensure that the propagation delay and skew are within acceptable limits for your application.

8. Short-Circuit Protection:

   • The device has built-in short-circuit protection. However, avoid prolonged short circuits to prevent damage.

9. Quiescent Current:

   • When all drivers are disabled, the quiescent current is typically 100 μA. This helps in reducing power consumption in idle states.

10. Operating Temperature:

    • The device is designed to operate over the industrial temperature range (-40°C to +85°C). Ensure that the operating environment does not exceed these limits.

11. Handling Precautions:

    • Handle the device with care to avoid static discharge, which can damage the sensitive components.
    • Follow proper ESD (Electrostatic Discharge) precautions during handling and installation.

(For reference only)