MAX232ACSE+T

Overview

The MAX232ACSE+T is a +5V-powered, multichannel RS-232 driver and receiver integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.5V to 5.5V with a typical operating current of 10mA. The device features two drivers and two receivers supporting full-duplex communication at data rates up to 200kb/s. It utilizes an internal charge pump requiring four external capacitors to generate the necessary ±10V levels from a single +5V source. The component is housed in a 16-pin SOIC package and supports operation across a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrated charge pump circuitry eliminates the need for bipolar ±12V supplies, enabling single +5V operation.
• Provides dual RS-232 drivers and dual receivers for full-duplex communication interfaces.
• Designed for EIA/TIA-232E and V.28/V.24 communications applications where high voltage generation is unavailable.

Applications

• Interface translation between TTL/CMOS logic and RS-232 standards
• Multidrop RS-232 network connections
• Portable diagnostics equipment

Procurement Notes

Verify that the ordering suffix 'C' corresponds to the specified 0°C to +70°C commercial temperature range. Confirm the 'SE' designation indicates the 16-pin narrow SOIC package. Ensure the '+T' suffix matches the required reel or cut tape packaging format. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm RoHS compliance status before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring standard RS-232 signaling without external high-voltage generators. The MAX232ACSE+T is suitable for applications constrained by board space due to its integrated charge pump. Verify that the required data rate does not exceed 200kb/s and that the operating environment remains within the 0°C to +70°C range. Ensure sufficient decoupling capacitors are available for the charge pump circuit.

Part Context

This device belongs to the MAX220–MAX249 family of line drivers and receivers designed for EIA/TIA-232E interfaces. The family offers various configurations with different numbers of drivers and receivers, as well as options for integrated or external capacitors. The MAX232 variant specifically provides two drivers and two receivers, making it a standard choice for basic serial communication tasks.

Replacement Considerations

The MAX232CSE+T serves as a direct functional replacement, sharing identical electrical characteristics and pinout compatibility. Both variants operate within the same voltage and temperature specifications, ensuring interchangeability in existing designs without requiring schematic modifications.