MAX221E
PRODUCTION±15kV ESD-Protected, +5V, 1µA, Single RS-232 Transceiver with AutoShutdown
Industry's Smallest, Low-Power, Single RS-232 Transceiver Featuring ±15kV ESD Protection
- Part Models
- 8
- 1ku List Price
- Starting From $2.68
Overview
- 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
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.
Applications
- Industrial Systems
- Maintenance/Diagnostic Ports
- Set-Top Boxes
- Telecommunications
Documentation
Data Sheet 1
Technical Articles 4
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 |
|---|---|---|---|
| MAX221ECAE+ | SSOP | ||
| MAX221ECAE+T | SSOP | ||
| MAX221ECUE+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX221ECUE+T | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX221EEAE+ | SSOP | ||
| MAX221EEAE+T | SSOP | ||
| MAX221EEUE+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX221EEUE+T | TSSOP_4.4 / TSSOP_6.1 |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Interface Transceivers 7 | ||
| MAX221 | PRODUCTION | +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 |