SLVSJY8 November 2025 THVD4431A
PRODUCTION DATA
| MODE2 | MODE1 | MODE0 | Operating mode | Function |
|---|---|---|---|---|
| Logic low or float | Logic low | Logic low | TTL loopback | L4 reflects on L1/L5/L8; L3 reflects on L2; L6 reflects on L7 |
| X | Logic low | Logic high | RS-232 3T5R mode, charge pump is ON, V+/V- are regulated | 3T5R mode; L3, L4, L6 are Logic inputs for RS232 driver; L1, L2, L5, L7, L8 are Logic outputs |
| X | Logic high | Logic low | RS-485 half duplex mode (charge pump is off) | L2 is RX Logic output; L3 is Driver Logic input; R1R2 are Bus inverting and non-inverting terminals respectively |
| Logic low or float | Logic high | Logic high | RS-485 full duplex mode (charge pump is off) | R1R2 are inverting and non-inverting driver terminals; R3R4 are non-inverting and inverting receiver terminals. |
| Logic high | Logic high | Logic high | RS-485 loopback mode (charge pump is off) | R1, R2, R3, R4 continue to be bus terminals and reflect data on L3; DIR is don't care in this mode; TERM not supported. External termination on R3/R4 not supported. R1/R2 can have internal or external termination. |
| Logic high | Logic low | Logic low | RS-232 loopback, charge pump is ON, V+/V- are regulated |
L3 reflects on R3/R2/L2 L4 reflects on R4/R5/R8/R1/L5/L8/L1 L6 reflects on R6/R7/L7 |