Product Summary
Description:The SP3070-3078E differential line transceivers are suitable 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.
High receiver input impedance allows a large number of transceivers to share a common data bus while maintaining signal margin and without excessive loading or use of expensive
repeaters. The high impedance driver output is maintained over the entire common-mode voltage range from -7 to +12V. Receivers will failsafe to logic 1 output when inputs are open,
shorted or terminated. Drivers include built-in short-circuit protection and a thermal-overload shutdown to protect against excessive power dissipation from bus contention or cable faults.
All RS485 inputs are ESD protected up to ±15kV (Air-Gap and Human Body Model) and up to ±8kV Contact discharge (IEC 1000-4-2)
Parametrics
ABSOLUTE MAXIMUM RATINGS:
VCC.....................................................................................................+6.0V
Input Voltage at control input pins (RE, DE).........................-0.3V to 6V
Driver Input Voltage (RE, DE)...............................................-0.3V to 6V
Driver Output Voltage (A, B, Y, & Z)....................................-8V to +13V
Receiver Input Voltage (A, B)..............................................-8V to +13V
Continuous Power Dissipation at Ta = 70℃
8-pin SO (derate 5.88mW/℃ above +70℃)................................471mW
8-pin PDIP (derate 9.29mW/℃ above +70℃)............................727mW
14-pin SO (derate 8.33mW/℃ above +70℃).............. .............667mW
14-pin PDIP (derate 10mW/℃ above +70℃).................. ..........800mW
Operating Temperature Ranges
SP307_EMN.................................................................-40oC to +125oC
SP307_EEN ...............................................................-40oC to +85oC
Junction Temperature...............................................................+150oC
Storage Temperature Range..........................................-65oC to +150o C
Lead Temperature (soldering, 10s) ........................................... +300o C
Features
FEATURES
(1) ±15kV ESD protection for RS485 pin;
(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) Available in three industry standard footprints;
(9) SP3070E, 3073 and 3076 in Full-Duplex (14 pin);
(10) SP3071E, 3074 and 3077 in Full-Duplex (8 pin);
(11) SP3072E, 3075 and 3078 in Half-Duplex (8 pin);
(12) Three applications-optimized speed grades;
(13) SP3070-72E: 250kbps slew-limited;
(14) SP3073-75E: 500kbps slew-limited;
(15) SP3076-78E: 16Mbps high speed;
(16) Small form factor SO-narrow packages;
(17) Industrial (-40 to +85oC) and Extended(-40 to +85oC) temperature grades
Image | Part No | Mfg | Description | Pricing (USD) |
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SP3072EEN-L |
Exar |
RS-422/RS-485 Interface IC RS485/RS422 Driver/ Receiver Transceiver |
Data Sheet |
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SP3072EEN-L/TR |
Exar |
RS-422/RS-485 Interface IC RS485/RS422 Driver/ Receiver Transceiver |
Data Sheet |
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