MAX3485ESA
TWGMC
Needs validationmedium risk
MAX3485ESA is a same-role SOP-8 RS-485 candidate, but supply and pinout need review.
Best Alternatives to MAX485ED
MAX485ED is a 5V half-duplex RS-485/RS-422 transceiver in SOP-8. Similar parts need pinout, supply, and ESD review.
AI replacement insight
Electrical riskhigh
3.3V candidates may not run on a 5V rail.
Package risklow
Kept candidates list SOP-8.
Firmware risklow
Protocol remains RS-485/RS-422.
Sourcing riskmedium
Lifecycle and vendor variants conflict.
Can it be replaced directly?
No verified pin-compatible replacement is proven from the provided evidence.
Best replacement path
Review MAX3485ESA first, then verify a true 5V MAX485-type SOP-8 transceiver.
Main risk
Supply voltage and pinout are not fully proven.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | MAX485ED | MAX3485ESA | SIT3485ESA | SP3485EEN | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOP-8 | SOP-8 | SOP-8 | SOP-8 | SOP-8 — same package name; SIT3485ESA: same package; SP3485EEN: same package |
| Pinout | MAX485ED | not given | not given | not given | not given — pin map absent; SIT3485ESA: not proven; SP3485EEN: not proven |
| Voltage | 4.75-5.25V | 3.0-5.5V or 3.3V | 3.0-3.6V | 3.0-3.6V | 3.0-5.5V or 3.3V / 3.0-3.6V — conflicting evidence; SIT3485ESA: not 5V part; SP3485EEN: not 5V part |
| Interface | RS485/422 half 5Mbps | RS485/422 half 10-12Mbps | RS485/422 half 12Mbps | RS485/422 half 12Mbps | RS485/422 half 10-12Mbps / RS485/422 half 12Mbps — rate is higher; SIT3485ESA: same role; SP3485EEN: same role |
| Temperature | -40 to 85C | -40 to 125C | -40 to 85C | -40 to 85C | -40 to 125C / -40 to 85C — ES says wider; SIT3485ESA: same range; SP3485EEN: same range |
Application & sourcing insights
Questions & answers
MAX3485ESA is the closest kept candidate, but it still needs supply and pinout review.