SP3485EEN
TWGMC
Needs validationmedium risk
SP3485EEN is a close 3.3V RS-485 family candidate for SIT3485ESA.
Best Alternatives to SIT3485ESA
SIT3485ESA is a 3.3V half-duplex RS-485/RS-422 transceiver. Close alternatives exist, but pinout must be verified.
AI replacement insight
Electrical riskmedium
Check supply, data rate, unit load, ESD.
Package riskmedium
SOP-8 matches, pin map not proven.
Firmware risklow
No protocol stack change expected.
Sourcing riskmedium
Vendor records are mixed.
Can it be replaced directly?
No pin-compatible replacement is verified from the provided fields.
Best replacement path
Start with SP3485EEN, then compare pinout and protection details.
Main risk
Unverified pinout and pending PDF checks.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | SIT3485ESA | SP3485EEN | MAX3485ESA | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Interface | RS485/RS422 half | RS485/RS422 half | RS485/RS422 half | RS485/RS422 half — same function; MAX3485ESA: same bus role | |
| Voltage | 3.0-3.6V | 3.0-3.6V | 3.0-5.5V | 3.0-3.6V / 3.0-5.5V — supply aligns; MAX3485ESA: range includes target | |
| Application | 12Mbps, 256 nodes | 12Mbps, 1/8 UL | 10 or 12Mbps | 12Mbps, 1/8 UL / 10 or 12Mbps — bus load aligns; MAX3485ESA: record conflict | |
| Package | SOP-8 | SOP-8 | SOP-8 | SOP-8 — same package name; MAX3485ESA: same package name | |
| Pinout | not provided | not provided | not provided | not provided — needs FAE check; MAX3485ESA: no pin map |
Application & sourcing insights
Questions & answers
SP3485EEN is the closest kept candidate based on matching 3.3V, 12Mbps, half-duplex RS-485 fields.