Product Summary

The SP485EEN-LTR is a half－duplex transceiver that meet the specifica­tions of RS－485 and RS－422 serial protocols with enhanced ESD performance. The ESD tolerance has been improved on these devices to over +15kV for both Human Body Model and IEC1000－4－2 Air Discharge Method. The SP485EEN-LTR is pin－to－pin compatible with Exar SP481 and SP485 devices as well as popular industry standards. As with the original ver­sions, the SP485EEN-LTR features Exar BiCMOS design allowing low power opera­tion without sacrificing performance. The SP481E and SP485E meet the requirements of the RS－485 and RS－422 protocols up to 10Mbps under load. The SP481E is equipped with a low power shutdown mode.

Parametrics

SP485EEN-LTR absolute maximum ratings: (1)Output Voltages Logic: －0.3V to (Vcc + 0.5V), Drivers: +/－15V,: Receivers: －0.3V to (Vcc + 0.5V); (2)Storage Temperature: －65℃ to +150℃; (3)Power Dissipation 8－pin NSOIC: 550mW (derate 6.60mW/℃ above +70℃); (4)8－pin PDIP: 1000mW (derate 11.8mW/℃ above +70℃).

Features

SP485EEN-LTR features: (1)+5V Only; (2)Low Power BiCMOS; (3)Driver / Receiver Enable for Multi Drop configurations; (4)Low Power Shutdown mode (SP481E).

Diagrams

SP485EEN-LTR pin connection

SP48
SP48
Triad Magnetics
Transformers Audio & Signal 7.5KCT/12 XFMR PRI/SEC RED SPEC
Data Sheet
0-1: $11.03
1-10: $9.38
10-25: $8.39
25-50: $7.51
SP481
SP481
Other

Data Sheet
Negotiable 
SP481E
SP481E
Other

Data Sheet
Negotiable 
SP481ECN-L
SP481ECN-L
Exar
Universal Bus Functions RS485 10000 kbps 5V temp 0C to 70C
Data Sheet
0-1: $1.16
1-25: $0.92
25-100: $0.78
100-250: $0.66
SP481ECN-L/TR
SP481ECN-L/TR
Exar
Universal Bus Functions Enhanced Low Power Half-Duplex RS-485
Data Sheet
0-1820: $0.48
1820-2500: $0.44
SP481ECP-L
SP481ECP-L
Exar
Universal Bus Functions Enhanced Low Power Half-Duplex RS-485
Data Sheet
0-1: $1.22
1-25: $0.92
25-100: $0.78
100-250: $0.66