MAX232ACUE+T

Overview

The MAX232ACUE+T is a dual-channel RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V power supply, utilizing internal charge pumps to generate the required ±10V levels for EIA/TIA-232E communication without external transformers. The device features two drivers and two receivers, supporting full-duplex data transmission at rates up to 120 kbps. It is housed in a 16-pin TSSOP package with an exposed pad. The component is rated for commercial operating temperatures ranging from 0°C to +70°C and draws a typical supply current of 10 mA.

Feature Summary

• Integrates dual drivers and receivers for complete RS-232 signal conversion within a compact surface-mount footprint.
• Eliminates the need for external bipolar power supplies by generating necessary voltage levels internally via charge pump circuitry.
• Provides robust signal integrity through high output drive capabilities and defined receiver hysteresis for noise immunity.

Applications

• Serial port interfacing between microcontrollers and PC-based systems
• Modem control circuits requiring standard RS-232 voltage levels
• Industrial equipment communication ports

Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature grade (0°C to +70°C) distinct from industrial variants. Confirm the '+T' designation corresponds to tape-and-reel packaging rather than tube distribution. Ensure the manufacturer source is explicitly Analog Devices or Maxim Integrated to guarantee authenticity and compliance with RoHS standards.

Selection Notes

Select this component when a single +5V supply is available and space constraints favor a TSSOP package over traditional DIP formats. It serves as a direct replacement for legacy MAX232 devices where commercial temperature ranges are sufficient. Consider alternative models if higher data rates exceeding 120 kbps or extended temperature ranges are required.

Part Context

This part belongs to the MAX232 family of multichannel RS-232 drivers and receivers designed for low-power applications. The AC variant specifies the commercial temperature range, while the UE suffix denotes the 16-TSSOP package type. This series is widely used in embedded systems for reliable serial communication link establishment.

Replacement Considerations

MAX232ACWE+T offers identical electrical specifications but utilizes an SOIC-16 package instead of TSSOP. MAX232AEPE+T provides the same functionality in a 16-PDIP through-hole package. Verify pinout compatibility before substituting packages to ensure proper PCB trace routing.