MAX3233ECWP+TG36

Overview

The MAX3233ECWP+TG36 is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3 V to 3.6 V, with a typical operating voltage of 3.3 V. The device supports data rates up to 250 kb/s and features two drivers and two receivers for full-duplex communication. It includes internal capacitors, reducing external component count. Key electrical parameters include a propagation delay of 0.25 µs and an operating supply current of 1 mA. The unit provides 15 kV ESD protection and incorporates a shutdown feature. It is housed in a 20-SOIC package and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrates charge pump circuitry with internal capacitors to generate RS-232 voltage levels without requiring external components.
• Provides robust electrostatic discharge (ESD) protection rated at 15 kV on all RS-232 lines.
• Includes a dedicated shutdown pin to minimize power consumption during periods of inactivity.
• Supports standard UART communication protocols with full-duplex data transmission capabilities.

Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Portable battery-powered equipment utilizing low-voltage logic supplies.
• Modem and fax machine implementations needing dual channel connectivity.
• Point-of-sale terminals and handheld data collection devices.

Procurement Notes

Verify the specific suffix TG36 against official manufacturer documentation to confirm tape-and-reel packaging specifications and RoHS compliance status. Confirm end-of-life status with the supplier prior to design finalization. Ensure the SOIC-20 footprint matches the target PCB layout constraints. Validate that the commercial temperature range meets the operational environment requirements of the intended application system.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with minimal external passive components. The integrated capacitors simplify board space optimization compared to discrete solutions. Verify compatibility with 3.3 V logic families. Consider the 250 kb/s speed limit for high-speed applications where faster transceivers might be necessary. Evaluate thermal performance within the 0°C to +70°C range for enclosed enclosures.

Part Context

This part belongs to the MAX3233E series of dual RS-232 transceivers designed for low-power applications. The ECWP designation indicates the extended temperature variant or specific packaging configuration within the Maxim Integrated portfolio. The product line emphasizes ease of use through internal charge pumps. This specific model represents a legacy component often found in established industrial designs requiring standardized serial connectivity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices official documentation for cross-reference lists. Verify pinout compatibility if considering alternative dual transceivers from other manufacturers. Check for equivalent ESD protection ratings and supply voltage ranges before substitution.