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The MAX3221EETE+T is manufactured by MAXIM (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from the Manufactor Datasheet:

Specifications:

• Manufacturer: MAXIM (Analog Devices)
• Category: Interface - Drivers, Receivers, Transceivers
• Type: RS-232 Transceiver
• Number of Drivers/Receivers: 1 Driver, 1 Receiver
• Data Rate: 250kbps
• Voltage Supply: 3V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Package / Case: 16-TSSOP (0.173", 4.40mm Width)
• Mounting Type: Surface Mount
• Features: Auto Shutdown, Enhanced ESD Protection

Descriptions:

The MAX3221EETE+T is a 3V to 5.5V-powered, 1-driver/1-receiver RS-232 transceiver. It is designed for bidirectional data communication in applications requiring RS-232 compatibility. The device includes an automatic shutdown feature to conserve power when the RS-232 cable is disconnected. It also provides enhanced ESD protection (±15kV Human Body Model) on the RS-232 I/O pins.

Features:

• Low Power Consumption:
• 1µA supply current in shutdown mode.
• 300µA (typical) active supply current.
• Auto Shutdown Plus™ Feature: Automatically powers down when no valid RS-232 signal is detected.
• Enhanced ESD Protection:
• ±15kV (Human Body Model) on transmitter outputs and receiver inputs.
• Operates from a Single 3V to 5.5V Supply.
• Compatible with 5V Logic Inputs.
• Small Footprint: Available in a 16-pin TSSOP package.

This information is strictly based on the manufacturer's datasheet and technical documentation.