Maxim Integrated MAX3387E Interface IC

The Maxim Integrated MAX3387E is a versatile and robust interface IC designed for bidirectional voltage-level translation and signaling between low-voltage digital logic circuitry and higher-voltage serial communication lines. It is particularly useful in applications where a microcontroller or digital processor needs to interface with RS-232 compliant serial devices.

Key Features

• Wide Voltage Range: The MAX3387E operates with a V_CC range of 2.35V to 5.5V, making it suitable for interfacing with both legacy and modern low-voltage devices.
• Low-Power Consumption: This device is optimized for low-power consumption with a shutdown feature that reduces the supply current to a mere 1µA, thereby extending the battery life in portable applications.
• Integrated Charge Pump Circuitry: The onboard charge pump circuit generates the necessary RS-232 voltage levels (±5.5V) from a single V_CC input, eliminating the need for multiple power supplies.
• High Data Rate: It supports data rates up to 250kbps, which is sufficient for most serial communication requirements.
• ESD Protection: The MAX3387E comes with enhanced electrostatic discharge (ESD) protection up to ±15kV, ensuring robust performance in harsh environments.
• Small Footprint: Available in a space-saving 20-pin TSSOP package, it is ideal for applications where board space is at a premium.

Applications

The MAX3387E is designed for a variety of applications, including:

• Portable and battery-powered devices
• Data cable interfaces
• Notebook, sub-notebook, and palmtop computers
• Handheld equipment
• Peripherals interfacing

With its combination of high-voltage interface capability, low-power operation, and small package size, the Maxim Integrated MAX3387E is an excellent choice for designers looking to bridge the gap between low-voltage digital logic and RS-232 serial ports in a compact and energy-efficient manner.