MAX3232CSE+TG1Z

Overview

The MAX3232CSE+TG1Z is a low-power, true RS-232 transceiver manufactured by Analog Devices Inc. (formerly Maxim Integrated). It operates from a single 3.0V to 5.5V supply and utilizes a proprietary low-dropout transmitter output stage with a dual charge pump. The device requires only four external 0.1µF capacitors for operation. It contains two drivers and two receivers, guaranteeing data rates up to 120kbps while maintaining standard RS-232 output levels. Typical data rates reach 235kbps. The component is housed in a 16-pin narrow SOIC package and supports an operating temperature range of 0°C to +70°C.

Feature Summary

• Proprietary low-dropout transmitter output stage enables true RS-232 performance from a single 3.0V to 5.5V supply.
• Dual charge pump architecture generates required voltage levels using only four small 0.1µF external capacitors.
• Pin, package, and functionally compatible with industry-standard MAX242 and MAX232 devices.

Applications

• Notebook, subnotebook, and palmtop computers
• High-speed modems
• Battery-powered equipment
• Hand-held equipment

Procurement Notes

Verify the specific ordering suffix 'TG1Z' against official manufacturer documentation to confirm exact packaging configuration and lot traceability details. Ensure the component matches the lead-free designation indicated by the '+' symbol in the base part number. Cross-reference the pinout and electrical specifications with the current revision datasheet to validate compatibility with existing designs.

Selection Notes

Select this component when interfacing TTL/CMOS logic with RS-232 ports in systems powered by a single 3.0V to 5.5V supply. It is suitable for applications requiring compatibility with legacy MAX232/MAX242 footprints without redesigning the PCB layout. Consider this device for portable electronics where minimizing external capacitor count and board space is critical for power efficiency and size constraints.

Part Context

The MAX3232 is part of a family of low-power RS-232 transceivers that includes the MAX3222, MAX3237, and MAX3241. These devices share common architectural features such as the dual charge pump and low-dropout outputs. The MAX3232 specifically provides a balanced configuration of two drivers and two receivers, distinguishing it from variants with different channel counts or higher speed capabilities like the MAX3237.

Replacement Considerations

The MAX3232CSE+ is functionally equivalent to the MAX232CPE+ regarding pinout and basic operation, though the MAX3232 operates at lower voltages. Direct replacements include other MAX3232 variants with different temperature ranges or packages, such as the MAX3232ESE+ or MAX3232CPA+, provided the environmental and physical constraints are met.