(China (Mainland))
Product Summary
DESCRIPTION:The SP3490 and the SP3491 are +3.3V low power full duplex transceivers that meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with the Sipex SP490 and SP491 devices as well as popular industry standards.
The SP3490 and the SP3491 feature SipexsBiCMOS process, allowing low power operation without sacrificing performance. The SP3490 and SP3491 meet the electrical specifications of RS-485 and RS-422 serial protocols up to 10Mbps under load. The SP3491 is identical to the SP3490 with the addition of driver and receiver tri-state enable lines
Parametrics
ABSOLUTE MAXIMUM RATING
VCC............................................................................................. +6.0V
Input Voltages
Drivers ............................................................... -0.3V to +6.0V
Receivers ......................................................................... ±14V
Output Voltages
Drivers .............................................................................. ±14V
Receivers .......................................................... -0.3V to +6.0V
Storage Temperature ................................................... -65℃ to +150℃
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
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 InputVoltage 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）
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
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 SP3490CN-L |
Exar |
Universal Bus Functions RS485 10000 kbp 3.3V temp 0C to 70C |
Data Sheet |
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SP3490CN-L/TR |
Exar |
Universal Bus Functions 3.3V LoPwr Full-Dup RS485w/10Mbps Data |
Data Sheet |
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