MAX234MJE

Overview

The MAX234MJE is a quad driver and zero receiver RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 5V supply using internal charge pumps to generate ±10V levels, eliminating the need for external dual supplies. The device features a CDIP-16 package with through-hole mounting. Key electrical parameters include a maximum data rate of 120 kbps, a typical propagation delay of 0.3 µs, and a maximum quiescent supply current of 1 mA. It supports power supply voltages between 4.5 V and 5.5 V and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates four drivers and zero receivers for unidirectional communication
• Utilizes internal charge pumps to derive ±10V from a single 5V source
• Includes shutdown mode to minimize power consumption during idle periods

Applications

• Industrial control systems requiring serial data transmission
• Point-of-sale terminals and barcode scanners
• Medical equipment with serial interface requirements

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix indicates the military-grade temperature range and ceramic DIP packaging. Request detailed datasheets and compliance certificates to ensure alignment with project specifications before acquisition.

Selection Notes

Select this component when designing systems that require multiple transmit lines without corresponding receive paths. Ensure the application environment stays within the specified voltage and temperature limits. Consider the physical dimensions of the CDIP-16 package for PCB layout constraints compared to surface-mount alternatives.

Part Context

This part belongs to the MAX232/MAX233/MAX234 family of RS-232 drivers. It shares functional similarities with the MAX232 but provides four independent drivers instead of two. The MJE suffix denotes a military-grade version with extended temperature capabilities and ceramic packaging, distinguishing it from standard commercial plastic variants.

Replacement Considerations

The MAX234CPE+ serves as a commercial-grade surface-mount alternative. For pin-compatible replacements, verify that the substitute supports the required 120 kbps data rate and single-supply operation. Ensure the replacement package matches the board's mechanical footprint.