Details

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BUY IS485E https://www.utsource.net/itm/p/12605057.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	4.75	5.0	5.25	V
Output Current	IO	Continuous	-	-	250	mA
Data Rate	fD	Differential	-	10	128	Mbps
Driver Output Low Voltage	VOL	IOL = 32 mA	-	0.4	1.0	V
Driver Output High Voltage	VOH	IOH = -32 mA	2.0	3.0	-	V
Receiver Input High Voltage	VIH	-	2.0	-	-	V
Receiver Input Low Voltage	VIL	-	-	-	0.8	V
Receiver Input Impedance	RIN	-	12	-	-	k惟
Common-Mode Input Voltage Range	VCM	-	-2	-	7	V
Maximum Cable Length	-	100 Ohm termination	-	-	1200	m
Operating Temperature Range	TA	-	-40	-	85	掳C
Storage Temperature Range	TSTG	-	-65	-	150	掳C

Instructions for Using IS485E

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 4.75V to 5.25V.
   • Use a stable power source to avoid voltage fluctuations.

2. Data Transmission:

   • The IS485E supports data rates up to 128 Mbps.
   • For optimal performance, use differential signaling to reduce noise and interference.

3. Driver Outputs:

   • The driver output low voltage (V_OL) should not exceed 1.0V when sourcing 32 mA.
   • The driver output high voltage (V_OH) should be at least 2.0V when sinking 32 mA.

4. Receiver Inputs:

   • The receiver input high voltage (V_IH) should be at least 2.0V.
   • The receiver input low voltage (V_IL) should not exceed 0.8V.
   • The input impedance (R_IN) is 12 k惟.

5. Common-Mode Input Voltage:

   • The common-mode input voltage range (V_CM) should be between -2V and 7V.

6. Termination:

   • Use 100 Ohm termination resistors at both ends of the cable to minimize reflections and ensure reliable communication.
   • The maximum cable length supported is 1200 meters.

7. Temperature Considerations:

   • The operating temperature range (T_A) is from -40掳C to 85掳C.
   • The storage temperature range (T_STG) is from -65掳C to 150掳C.

8. Handling and Installation:

   • Handle the IS485E with care to avoid static damage.
   • Ensure proper grounding and shielding to minimize electromagnetic interference (EMI).

9. Testing and Troubleshooting:

   • Test the device under typical operating conditions to ensure it meets the specified parameters.
   • If issues arise, check the power supply, signal integrity, and termination resistors.

(For reference only)