The MAX3485AE is a newer, improved version of the MAX3485E. The two chips are pin-for-pin compatible. The table below summarizes the improvements:
| MAX3485E | MAX3485AE | |
| Max Data Rate | 12Mbps | 20Mbps |
| ESD Protection | 15kV | 20kV |
| Temp. Range | -40 to +85 deg C | -40 to +125 deg C |