Maxim Integrated MAX3100EEE+T SPI/UART controller, RS232 and RS485 protocol support, 2.7V–5.5V supply, 150µA supply current, -40°C to 85°C, 16-SSOP (3.90mm Width) package.
| Parameter | Value |
|---|---|
| Voltage | 2.7V ~ 5.5V |
| Current - supply | 150µA |
| Protocol | RS232, RS485 |
| Interface | SPI, UART |
| Operating temperature | -40°C ~ 85°C |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Controller |
| Case | 16-SSOP (0.154\", 3.90mm Width) |
The MAX3100EEE+T from Maxim Integrated is a SPI/UART controller that handles both RS232 and RS485 protocols from a single chip. It talks to a host microcontroller over SPI and presents a full UART on the other side — no extra level translators needed if your system runs on a 2.7V to 5.5V rail. The 150 µA supply current means you can leave it powered on a battery-backed serial port without draining the pack overnight.
The part supports both RS232 and RS485 protocols, but it is a single UART channel — you would need to switch the line transceivers externally if you want both protocols on the same connector. It cannot drive both protocol types at the same time on separate pins without external muxing.
The base MAX3100 (non-EEE+T suffix) is the same die in a different package or tape option — the electrical specs are identical. For a different protocol set, look at the MAX3111 series which adds an integrated RS232 transceiver, but the pinout differs.