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LTC1387 Datasheet(PDF) 6 Page - Linear Technology |
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LTC1387 Datasheet(HTML) 6 Page - Linear Technology |
6 / 12 page 6 LTC1387 FU CTIO TABLES Select Modes SELECT INPUTS RECEIVER DRIVER ON RXEN DXEN 485/232 RXA RXB DXY DXZ 1 0 0 0 Z Z Z Z ON OFF RS232 Mode, DX and RX Off 1 0 1 0 Z Z ON ON ON OFF RS232 Mode, DXY and DXZ On, RX Off 1 1 0 0 ON ON Z Z ON OFF RS232 Mode, DX Off, RXA and RXB On 1 1 1 0 ON ON ON ON ON OFF RS232 Mode, DXY and DXZ On, RXA and RXB On 0 0 1 0 Z Z ON Z ON OFF RS232 Mode, DXY On, DXZ Off, RX Off 0 1 0 0 Z ON ON Z ON OFF RS232 Mode, DXY On, DXZ Off, RXA Off, RXB On 0 1 1 0 ON ON ON ON ON ON RS232 Loopback Mode, DXY and DXZ On, RXA and RXB On 0 0 0 X Z Z Z Z OFF OFF Shutdown, RS485 RIN 1 0 0 1 Z Z Z Z ON OFF RS485 Mode, DX and RX Off X 0 1 1 Z Z ON ON ON OFF RS485 Mode, DX On, RX Off X 1 0 1 ON Z Z Z ON OFF RS485 Mode, DX Off, RX On 1 1 1 1 ON Z ON ON ON OFF RS485 Mode, DX On, RX On 0 1 1 1 ON Z ON ON ON ON RS485 Loopback Mode, DX On, RX On RS232 Driver Mode INPUTS OUTPUTS SELECTED 485/232 D CONDITIONS Y, Z YES 0 0 No Fault 1 YES 0 1 No Fault 0 YES 0 X Thermal Fault Z NO 0 X X Z RS232 Receiver Mode INPUTS OUTPUTS SELECTED 485/232 A, B RA, RB YES 0 0 1 YES 0 1 0 YES 0 Inputs Open 1 NO 0 X Z RS485 Driver Slew Rate INPUTS OUTPUTS DXEN 485/232 SLEW SLEW RATE 1 1 0 Slow 1 1 1 Fast 01 X Z RS485 Driver Mode INPUTS OUTPUTS DXEN 485/232 D CONDITIONS Z Y 1 1 0 No Fault 0 1 1 1 1 No Fault 1 0 1 1 X Thermal Fault Z Z 01 X X Z Z RS485 Receiver Mode INPUTS OUTPUTS RXEN 485/232 B – A RA RB 1 1 < – 0.2V 0 Z 1 1 > 0.2V 1 Z 1 1 Inputs Open 1 Z or Shorted to Ground 01 X Z Z CHARGE PUMP LOOPBACK COMMENTS |
Similar Part No. - LTC1387 |
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Similar Description - LTC1387 |
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