Product Summary
The SP331ET is a programmable RS-232 and/or RS-485 transceiver IC. The SP331ET contains four drivers and four receivers when selected in RS-232 mode; and two drivers and two receivers when selected in RS-485 mode. The SP331ET also contains a dual mode which has two RS-232 drivers/receivers plus one differential RS-485 driver/receiver.
Parametrics
SP331ET absolute maximum ratings: (1)VCC: +7V; (2)Storage Temperature: -65℃ to +150℃; (3)Power Dissipation 28-pin Plastic DIP: 1000mW; (4)Power Dissipation28-pin Plastic SOIC: 1000mW.
Features
SP331ET features: (1)+5V Only Operation; (2)Software Programmable RS-232 or RS-485Selection; (3)Four RS-232 Transceivers in RS-232 Mode; (4)Two RS-485 Full-Duplex Transceivers in RS-485 Mode; (5)Two RS-232 Transceivers and One RS-485 Transceiver in Dual Mode; (6)Self-Testing Loopback Mode; (7)Full Driver Tri-State (Hi-Z) Control; (8)Ideal for RS-232 to RS-485 conversion.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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SP331ET-L |
Exar |
RS-232 Interface IC Programmable RS-232/RS-485 |
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SP331ET-L/TR |
Exar |
RS-232 Interface IC Programmable RS-232/RS-485 |
Data Sheet |
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