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ST485EBDR on a board, in 3D

ST485EBDR

STMicroelectronics

-40℃~+85℃ 1 1 300uA 4.75V~5.25V 5Mbps Transceiver ±15kV SOIC-8 RS-485 / RS-422 ICs ROHS

Extended
DatasheetJLCPCBLCSCst/ST485EBDR
Category
RS 485 , RS 422 ICs
Package
SOIC-8
Pins
8

Overview

The ST485EBDR is a RS 485 , RS 422 IC made by STMicroelectronics in a SOIC-8 package with 8 pins. -40℃~+85℃ 1 1 300uA 4.75V~5.25V 5Mbps Transceiver ±15kV SOIC-8 RS-485 / RS-422 ICs ROHS.

PCBKit's library has its KiCad symbol (Interface_UART:ST485E, from KiCad's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 4,053 are in stock at JLCPCB (part C81186). 26 open-source boards in 14 repositories on GitHub use it.

Symbol

RO1RE2DE3DI4GND5A6B7VCC8
Interface_UART:ST485EFrom KiCad's library

Footprint

12345678
Package_SO:SOIC-8_3.9x4.9mm_P1.27mmFrom KiCad's library

From the datasheet

6
Supply, absolute maximum
7 V · VCC, absolute maximum · p. 5
Works from
-40 °C · ST485EBDR operating temperature, min · p. 1
Works up to
85 °C · ST485EBDR operating temperature, max · p. 1
Takes working
400 µA · VCC, driver enabled, no load, 5 V, 25 °C, typical · p. 6
Takes at most
900 µA · VCC, driver enabled, no load, max · p. 6
Edge
15 ns · Driver rise or fall time, RDIFF = 54 Ω, CL1 = CL2 = 100 pF, typical · p. 7

Parameters

17
Communication Mode
Half-Duplex
Current - Supply
400uA
Current - Supply(Max)
900uA
Data Rate
5Mbps
Driver/receiver
1/1
ESD Protect
±15kV
Features
Overcurrent Protection
Number of Drivers
1
Number of Nodes
256
Number of Receivers
1
Operating Temperature
-40℃~+85℃
Quiescent Supply Current
300uA
Rise Time
15ns
Type
Transceiver
Types
transceiver
Voltage - Supply
4.75V~5.25V
Voltage - Supply(Absolute Max)
7V

Order codes

1

Pinout

8
The pins of the ST485EBDR
PinNameType
1ROOutput
2REInput
3DEInput
4DIInput
5GNDPower in
6AInput/output
7BInput/output
8VCCPower in

Open-source boards using it

All 26
  • 2 layers30 × 54 mmUsb to rs485 over rj45, the printed circuit board in 3D

    Usb to rs485 over rj45

    aruna-rov/usb_to_rs485_over_rj45

    usb to rs485 over rj45

    24 parts4GPL-3.0
  • 4 layers136.1 × 70.6 mmMppt, the printed circuit board in 3D

    Mppt

    seandepagnier/mppt

    free software/hardware mppt solar controller

    152 parts4
  • 2 layers99.1 × 99.1 mmCnc, the printed circuit board in 3D

    Cnc

    romanchom/cnc-pcb

    PCB designed for use with GRBL ESP32 as a CNC controller.

    54 parts1
  • 2 layers290 × 221 mmHub module, the printed circuit board in 3D

    Hub module

    tmolteno/TART-3

    The TART radio telescope, Version 3.

    280 parts1GPL-3.0
  • 2 layers63.5 × 76.2 mmDmxdude mini, the printed circuit board in 3D

    Dmxdude mini

    cyfinfaza/dmxdude-mini

    Hardware design for dmxdude DMX512/WS2812/Wi-Fi module

    89 parts
  • 2 layers105 × 70 mmTrackAmplifier, the printed circuit board in 3D

    TrackAmplifier

    jeremysiebers/Siebwalde

    Siebwalde project

    122 parts
  • 2 layers100 × 90 mmNano5, the printed circuit board in 3D

    Nano5

    RJLABS/flatcracker

    tempalate board

    187 partsAGPL-3.0
  • 2 layers88.9 × 114.3 mmRaw, the printed circuit board in 3D

    Raw

    PCBench/PCBench

    resolution = [0.5, 0.5] pcbfolder = '../PCBs/' pcbnames = ["1Bitsy1bitsy"] iters = 30 env = PCBRoutingEnv(resolution=resolution, pcbfolder=pcbfolder, pcbnames=pcbnames) obs, info = env.reset() for in range(iters): act =…

    190 parts21MIT

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Questions

Is there a KiCad symbol and footprint for the ST485EBDR?

Yes. The symbol is Interface_UART:ST485E and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ST485EBDR?

SOIC-8, with 8 pins. Its footprint is drawn on this page.

Where is the ST485EBDR datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the ST485EBDR?

JLCPCB lists it as part C81186, with 4,053 in stock; the sellers' links on this page open their listings.

What can replace the ST485EBDR?

Parts like it in the library: the SP3485EN-L/TR by MaxLinear, the SP485EEN-L/TR by MaxLinear, the SN75176BD by Texas Instruments and the MAX485ESA+T by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the ST485EBDR?

26 boards in 14 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8