Top

±15kV ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with AutoShutdown

Industry's Smallest, Low-Power, Single RS-232 Transceiver Featuring ±15kV ESD Protection

Product Details

Key Features

Parametric specs for RS-232 Line Driver/Receivers
# Rx 1
# Tx 1
VSUPPLY (V) 5
Data Rate (kbps) (min) 250
ICC (mA) (typ) 5
Internal Charge Pump Yes
External Caps 4
Cap. Value (µF) (nom) 0.1
ESD Protect. (±kV) 15
Package/Pins SSOP/16
TSSOP/16
Budgetary
Price (See Notes)
2.03
View Less

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for RS-232 Line Driver/Receivers
# Rx 1
# Tx 1
VSUPPLY (V) 5
Data Rate (kbps) (min) 250
ICC (mA) (typ) 5
Internal Charge Pump Yes
External Caps 4
Cap. Value (µF) (nom) 0.1
ESD Protect. (±kV) 15
Package/Pins SSOP/16
TSSOP/16
Budgetary
Price (See Notes)
2.03

Key Features

  • Single RS-232 Transceiver in a Small 16-Pin TSSOP
  • ESD Protection for RS-232 I/O Pins
    • ±15kV-Human Body Model
    • ±8kV-IEC 1000-4-2, Contact Discharge
    • ±15kV-IEC 1000-4-2, Air-Gap Discharge
  • Latchup Free
  • 1µA Supply Current
  • AutoShutdown Saves Power without Changes to BIOS
  • Guaranteed 250kbps Data Rate

Applications/Uses

  • Industrial Systems
  • Maintenance/Diagnostic Ports
  • Set-Top Boxes
  • Telecommunications

Description

The MAX221E is a +5V powered, single transmit/receive RS-232 and V.28 communications interface with automatic shutdown/wake-up features and high data rate capabilities.

The MAX221E features enhanced electrostatic discharge (ESD) protection. Both the transmitter output and receiver input are protected to ±15kV using the IEC 1000-4-2 Air-Gap Discharge Method, to ±8kV using the IEC 1000-4-2 Contact Discharge Method, and to ±15kV using the Human Body Model.

The MAX221E achieves a low 1µA supply current with Maxim's revolutionary AutoShutdown™ feature. AutoShutdown saves power without changes to the existing BIOS or operating system by entering low-power shutdown mode when the RS-232 cable is disconnected or when the transmitter of the connected peripheral is off. The MAX221E wakes up and drives the active-low INVALID pin high when an active RS-232 cable is connected, signaling the host that a peripheral is connected to the communications port.

The MAX221E is available in a 16-pin SSOP package as well as a 16-pin TSSOP that uses 50% less board space than a 16-pin SO.

Simplified Block Diagram

MAX221E: Typical Operating Circuit MAX221E: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.