MAX221

PRODUCTION

+5V, 1µA, Single RS-232 Transceiver with AutoShutdown

Industry's Smallest, Low-Power Single RS-232 Transceiver

Data Sheet (Rev. 0) Product Selection Table

Part Models: 8
1ku List Price: Starting From $2.14

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Overview

Single RS-232 Transceiver in a Small 16-Pin TSSOP Package
1µA Supply Current
AutoShutdown Saves Power Without Changes to BIOS
Guaranteed 250kbps Data Rate

The MAX221 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 MAX221 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 MAX221 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 MAX221 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. For an equivalent RS-232 transceiver with enhanced ±15kV ESD protection, refer to the MAX221E data sheet.

Applications

Industrial Systems
Maintenance/Diagnostic Ports
Set-Top Boxes
Telecommunications

Part Models: 8
1ku List Price: Starting From $2.14

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX221CAE+	16-SSOP-5.3_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX221CAE+T	16-SSOP-5.3_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX221CUE+	16-TSSOP_4.4-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX221CUE+T	16-TSSOP_4.4-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX221EAE+	16-SSOP-5.3_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX221EAE+T	16-SSOP-5.3_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX221EUE+	16-TSSOP_4.4-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX221EUE+T	16-TSSOP_4.4-4.4_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Dec 11, 2018 - 1754N ASSEMBLY
		pcn_1754n
MAX221CUE+	PRODUCTION
MAX221CUE+T	PRODUCTION
MAX221EUE+	PRODUCTION
MAX221EUE+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Interface Transceivers & Isolators 7
MAX221E	PRODUCTION	±15kV ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with AutoShutdown
MAX3221	PRODUCTION	+3V to +5.5V RS-232 Transceivers with AutoShutdown
MAX3221E	PRODUCTION	±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps, RS-232 Transceivers with AutoShutdown
MAX3226	PRODUCTION	1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus

MAX3226E	PRODUCTION	±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus
MAX3227	PRODUCTION	1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus
MAX3227E	PRODUCTION	±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus

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Overview

Documentation

Data Sheet 2

Reliability Data 1

Technical Articles 1

Hardware Ecosystem

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