Product Summary
The SP3078EEN-L/TR is a differential line transceiver which is ssuitable for bidirectional communication on balanced multipoint bus transmission lines and comply with both RS485 and RS422 EIA Standards. Each device consists of a differential driver and differential receiver. All devices operate from a 3.3V power supply. Applications include Industrial Control, Utility Meters Building Automation, Instrumentation and Point of Sale.
Parametrics
SP3078EEN-L/TR absolute maximum ratings: (1)VCC: +6.0V; (2)Input Voltage at control input pins (RE, DE): -0.3V to 6V; (3)Driver Input Voltage (RE, DE): -0.3V to 6V; (4)Driver Output Voltage (A, B, Y, & Z): -8V to +13V; (5)Receiver Input Voltage (A, B): -8V to +13V; (6)Junction Temperature: +150℃; (7)Storage Temperature Range: -65℃to +150℃; (8)Lead Temperature (soldering, 10s): +300℃.
Features
SP3078EEN-L/TR features: (1)±15kV ESD protection for RS485 pins; (2)3.3V low-power operation; (3)Advanced Receiver-failsafe protection for open, shorted or terminated lines; (4)Up to 256 Transceivers may share Bus; (5)Very low load for 8x greater fanout; (6)Hot Swap glitch protection RE and DE; (7)Thermal shutdown protects against driver contention; (8)Small form factor SO-narrow packages.
Diagrams

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![]() SP3078EEN-L/TR |
![]() Exar |
![]() RS-422/RS-485 Interface IC RS485/RS422 Driver/ Receiver Transceiver |
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(Hong Kong)










