Maxim MAX14840E/MAX14841E RS-485 Half-Duplex Transceiver Datasheet

MAX14840E/MAX14841E are +3.3V ESD-protected transceivers intended for half-duplex RS-485 communi- cation up to 40Mbps.


Maxim MAX14840E/MAX14841E RS-485 Half-Duplex Transceiver Datasheet - cover page
Brand
Maxim
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
15
File format
PDF
File size
1.6 MB
Published
08 May, 2012
Updated
30 September, 2023
MD5 checksum
22E159EB4EC42E5FCADA7477ECC88817

About this manual

The MAX14840E and MAX14841E are +3.3 V ESD‑protected RS‑485 transceivers designed for high‑speed half‑duplex communication up to 40 Mbps. They offer hot‑swap capability, fail‑safe receiver inputs, and robust ESD protection for reliable operation in automotive and industrial environments.

Both devices are offered in 8‑pin SO and 8‑pin TDFN‑EP (3 mm × 3 mm) packages and operate over a –40 °C to +125 °C temperature range. Detailed electrical characteristics, switching parameters, and timing diagrams are provided for designers.

What's inside

  • General Description
  • Absolute Maximum Ratings
  • DC Electrical Characteristics
  • Switching Characteristics
  • Test and Timing Diagrams
  • Pin Configurations
  • Detailed Description
  • ESD Test Conditions
  • Applications Information

Specifications

Supply Voltage (VCC)3.0 V – 3.6 V
Maximum Data Rate40 Mbps
Operating Temperature Range-40 °C to +125 °C
Typical Supply Current (unloaded)1.5 mA
ESD Protection (HBM)35 kV

Frequently asked questions

What hot‑swap capability do the MAX14840E/MAX14841E provide?

Both devices have hot‑swap inputs that prevent undesired bus transitions during power‑up or hot insertion.

What is the typical supply current when the transceiver is unloaded?

The transceiver draws about 1.5 mA typical supply current when unloaded.

In which packages are the MAX14840E and MAX14841E available?

Both parts are offered in 8‑pin SO and a space‑saving 8‑pin TDFN‑EP (3 mm × 3 mm) package.

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