Skip to main content
Analog Devices MAX3311CUB+ — Analog & Data Acquisition

MAX3311CUB+ RS-232 Transceiver, 460 kbps, 5V, 10-uMAX/uSOP

MPNMAX3311CUB+
End of Life

Maxim Integrated MAX3311CUB+, RS-232 Transceiver, Full Duplex, 1/1 Drivers/Receivers, 460 kbps, 4.5V–5.5V Supply, 0°C–70°C, 10-uMAX/uSOP Package.

$4.2Ref. price · indicative, final on quote
Packaging10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX3311CUB+ specifications
ParameterValue
TypeTransceiver
MountingSurface Mount
Voltage4.5V ~ 5.5V
ProtocolRS232
Operating temperature0°C ~ 70°C
DuplexFull
PackageTube
Data rate460Kbps
Case10-TFSOP, 10-MSOP (0.118\", 3.00mm Width)
Receiver hysteresis500 mV
Number of drivers (Receivers)1/1

Product details

RS-232 link in a 5V-only system

It handles data rates up to 460 kbps over a 4.5V to 5.5V supply rail, with 500 mV of receiver hysteresis for noise immunity on the serial line.

Sourcing and lifecycle — still in active production

It is ROHS3 compliant.

5V supply only — plan the power rail accordingly

The supply range is 4.5V to 5.5V, so this transceiver runs from a clean 5V rail — not 3.3V. If your system uses 3.3V logic, the receiver output is still 5V-level, so a level translator or a 5V-tolerant UART input is needed on the controller side. The 500 mV receiver hysteresis helps reject line noise on longer cable runs, which is useful for RS-232 links in electrically noisy environments like a lab bench or a production floor.

Footprint and handling note

The 10-TFSOP / 10-MSOP (3.00 mm width) package is a common small-outline footprint. It is surface-mount only, so plan for reflow soldering. No exposed thermal pad — dissipation is through the package body and pins.

Frequently asked questions

Can MAX3311CUB+ be used in 5V-only systems?

Yes, the 4.5V to 5.5V supply range is designed for 5V rails. It is not compatible with 3.3V-only supplies.

What is the difference between MAX3311CUB+ and MAX3312CUB+?

The MAX3312CUB+ is a similar RS-232 transceiver in the same package, but its data rate is typically lower (around 250 kbps). The MAX3311CUB+ offers 460 kbps for higher-speed serial links.