MAX3140EEI

$6.62

Description：IC UART SPI RS485/422 28-QSOP
Series：-

SKU:ca2263bbf36f Category: Controllers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

MAX3140EEI is listed in the Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC UART SPI RS485/422 28-QSOP. Review the specifications below when checking this part for your BOM.

Controllers specifications for MAX3140EEI

Description：IC UART SPI RS485/422 28-QSOP
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
Protocol：RS232, RS485
Function：Controller
Interface：SPI, UART
Standards：-
Voltage - Supply：4.75V ~ 5.25V
Current - Supply：640µA
Operating Temperature：-40°C ~ 85°C
Package / Case：28-SSOP (0.154", 3.90mm Width)
Supplier Device Package：28-QSOP
Grade：-
Qualification：-

Controllers datasheet and documents for MAX3140EEI

MAX3140EEI

Controllers Overview

The MAX3140EEI is a universal asynchronous receiver-transmitter (UART) and RS-485/RS-422 transceiver integrated in a single 28-pin QSOP package. It operates from a +5V supply with a voltage range of 4.75V to 5.25V. The device supports data rates up to 115kbps, 500kbps, or 10Mbps depending on the slew rate setting. It features an 8-word receive FIFO, programmable baud rates up to 230k, and true fail-safe receiver outputs. Operating temperature ranges from -40°C to +85°C.

Controllers Feature Summary

Integrates UART and RS-485/RS-422 transceiver in a compact 28-pin QSOP package
Features SPI/MICROWIRE-compatible serial interface to save microcontroller I/O pins
Includes true fail-safe circuitry for robust operation during open or shorted inputs
Provides software-selectable half/full-duplex modes and programmable slew rates

Controllers Applications

Industrial control systems
HVAC and building automation networks
Local area networks
Embedded systems
Point-of-sale devices

Controllers Procurement Notes

Verify the specific suffix EEI corresponds to the industrial temperature range (-40°C to +85°C). Confirm the package type matches the required 28-pin QSOP footprint. Ensure the ordering code includes the lead-free designation if RoHS compliance is mandatory for the assembly process.

Controllers Selection Notes

Select this component when space and power are constrained applications require both UART logic and differential bus driving capabilities. The integrated design eliminates the need for separate interface chips. Verify that the system clock frequency aligns with the supported baud rate generator requirements for accurate timing.

Controllers Part Context

This part combines the functionality of the MAX3100 UART and MAX3089 transceiver into one unit. It maintains hardware and software compatibility with these individual components while reducing board space. The integration simplifies design for embedded controllers needing reliable serial communication over long distances.