Product Summary

The SP3490CN is a +3.3V low power full duplex transceiver that meets the specifications of the RS-485 serial protocol. It is pin-to-pin compatible with the Sipex SP3490CN as well as popular industry standards. The SP3490CN features BiCMOS process, allowing low power operation without sacrificing performance. It meets the electrical specifications of RS-485 and RS-422 serial protocols up to 10Mbps under load.

Parametrics

SP3490CN absolute maximum ratings: (1)VCC: +6.0V; (2)Input Voltages: Drivers: -0.3V to +6.0V, Receivers: ±14V; (3)Output Voltages: Drivers: ±14V, Receivers: -0.3V to +6.0V; (4)Storage Temperature: -65℃ to +150℃; (5)Power Dissipation per Package: 8-pin NSOIC (derate 6.90mW/℃ above +70℃): 600mW, 8-pin PDIP (derate 11.8mW/℃ above +70℃): 1000mW, 14-pin NSOIC (derate 8.33mW/℃ above +70℃): 700mW, 14-pin PDIP (derate 14.3mW/℃ above +70℃): 1200mW.

Features

SP3490CN features: (1)Full Duplex RS-485 and RS-422 Transceivers; (2)Operates from a single +3.3V supply; (3)Interoperable with +5.0V logic; (4)Driver/Receiver Tri-state Enable Lines (SP3491); (5)-7V to +12V Common-Mode Input Voltage Range; (6)+200mV Receiver Input Sensitivity; (7)Allows up to 32 transceivers on the serial bus; (8)Compatibility with LTC490 and SN75179 (SP3490); (9)Compatibility with LTC491 and SN75180 (SP3491).

Diagrams

SP3490CN diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
SP3490CN-L
SP3490CN-L
Exar
Universal Bus Functions RS485 10000 kbp 3.3V temp 0C to 70C
Data Sheet
0-1: $1.37
1-25: $1.08
25-100: $0.92
100-250: $0.77
SP3490CN-L/TR
SP3490CN-L/TR
Exar
Universal Bus Functions 3.3V LoPwr Full-Dup RS485w/10Mbps Data
Data Sheet
0-1840: $0.56
1840-2500: $0.52