Product Overview

MAX3232ESE+T is a high-performance RS-232 transceiver launched by Analog Devices (ADI), integrating two drivers, two receivers, and a dual charge pump circuit. Designed specifically for TTL/CMOS to RS-232 level conversion, this chip achieves 3V-5.5V single-supply operation via a built-in charge pump, requiring only four external 0.1μF small capacitors for stable performance. It supports data transfer rates up to 120kbps, with serial ports featuring ±15kV IEC ESD protection, fully complying with the TIA/EIA-232-F standard. As an MAX232-compatible chip, its pinout and functionality are highly aligned with industry standards, enabling seamless replacement of traditional devices and wide adaptation to industrial control, portable equipment, and other applications.

Key Features

• Wide-Voltage Single-Supply Design：Supports 3V-5.5V single-supply operation with a built-in dual charge pump circuit, eliminating the need for ±12V bipolar power supplies and significantly simplifying power solutions.
• Robust ESD Protection：Serial pins provide ±15kV Human Body Model (HBM) and ±10kV contact discharge (IEC 61000-4-2) ESD protection, enhancing device anti-interference capability.
• Simplified Peripheral Configuration：Requires only four external 0.1μF charge pump capacitors, reducing PCB space occupation and lowering design costs and complexity.
• High Compatibility：Fully compatible with MAX232 in pinout, package, and functionality, supporting direct replacement and adapting to existing design schemes.
• Wide-Temperature Stable Operation：Operates in a temperature range of -40°C to +85°C, meeting harsh industrial environment requirements, with a low supply current of 300μA for excellent energy efficiency.

Technical Specifications

Typical Applications

• Industrial Control Communication：In industrial equipment such as PLCs and frequency converters, MAX3232ESE+T serves as a bridge between TTL/CMOS and RS-232 interfaces, enabling data interaction between controllers and host computers. Its wide-temperature characteristics and ESD protection ensure stable transmission in dusty and vibrating environments, guaranteeing production line communication continuity.
• Portable Electronic Devices：In battery-powered devices like laptops and handheld data collectors, the chip's 300μA low-power design extends battery life, while the single-supply and small-capacitor configuration reduces device size, adapting to the miniaturization needs of portable products.
• Medical Instrument Interfaces：Medical devices such as monitors and analyzers connect to printers or data terminals via MAX3232ESE+T. The ±15kV ESD protection prevents electrostatic damage during device plugging/unplugging, meeting high-reliability standards for medical electronics.
• Consumer Electronics Peripherals：In peripherals like modems and serial mice, the chip's compatibility with MAX232 simplifies design, and the 120kbps rate meets daily data transmission needs, reducing R&D costs for consumer electronics manufacturers.
• Communication Network Equipment：In the configuration interfaces of routers and switches, the chip realizes level conversion between the main control chip and the RS-232 debugging port. The wide-voltage power supply adapts to different device power systems, enhancing the maintenance convenience of network equipment.

Why Choose MAX3232ESE+T ?

• Significant Cost Advantage：The single-supply design eliminates ±12V power modules, and 0.1μF small capacitors reduce peripheral component costs, cutting material costs by over 30% compared to traditional solutions.
• Strong Design Compatibility：Full pin compatibility with MAX232 enables direct replacement without PCB layout modifications, shortening product iteration cycles and adapting to existing equipment upgrade needs.
• High Environmental Adaptability：The -40°C to +85°C wide temperature range covers industrial and civilian scenarios, and ±15kV ESD protection reduces damage risks during on-site installation and maintenance, lowering product repair rates.
• Outstanding Energy Efficiency：300μA low operating current and optional shutdown mode (for some models) extend battery life by over 20% in battery-powered devices, outperforming similar RS-232 transceivers.
• Stable Supply：As an ADI mass-produced model, MAX3232ESE+T offers long-term stable supply and supports flexible ordering starting from 10 units, adapting to small-batch trial production and large-scale mass production needs.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.