MAX232BEASE+T

Overview

The MAX232BEASE+T is a dual transmitter and dual receiver RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. Designed for +5V operation, this device provides full duplex communication capabilities with a data rate of 120 kb/s. It operates within a supply voltage range of 4.5 V to 5.5 V and draws a typical operating current of 10 mA. The component features propagation delays of 3.5 us and 1 us. It supports an extended industrial temperature range from -40°C to +85°C and is housed in a 16-pin SO-Narrow package.

Feature Summary

• Provides dual independent drivers and receivers for full-duplex RS-232 communication
• Operates exclusively on a single +5V power supply without requiring external negative voltages
• Includes integrated charge pump circuitry to generate internal supply rails
• Features shutdown mode capability to minimize power consumption during idle periods

Applications

• Industrial control systems requiring serial communication interfaces
• Point-of-sale (POS) terminals and barcode scanners
• Medical equipment utilizing EIA/TIA-232-E standard protocols
• GPS navigation devices and handheld communication units

Procurement Notes

Verify the specific suffix 'B' against official manufacturer documentation to confirm it denotes the industrial temperature grade variant (-40°C to +85°C). Ensure the '+T' designation corresponds to the tape and reel packaging format required for automated assembly processes. Cross-reference the part number with the latest datasheet revision to validate pinout compatibility and electrical specifications before procurement.

Selection Notes

Select this component when designing systems that require robust RS-232 connectivity under industrial environmental conditions. The device is suitable for applications needing reliable signal integrity at moderate data rates up to 120 kb/s. Consider the 16-pin narrow SOIC footprint for space-constrained printed circuit board layouts. Verify that the system power supply remains stable within the 4.5 V to 5.5 V range to ensure proper charge pump operation and signal levels.

Part Context

This part belongs to the widely adopted MAX232 family of multichannel RS-232 drivers and receivers. These components are engineered to convert logic-level signals to RS-232 voltage levels, facilitating communication between microprocessors and standard serial ports. The series is characterized by its simplicity, requiring only external capacitors for the internal charge pump, making it a staple in legacy and embedded serial interface designs.

Replacement Considerations

Compatible alternatives include the MAX232CSE+T for commercial temperature ranges and the MAX232EESE+T for similar industrial specifications. Other functional equivalents within the same product line may offer variations in package style or specific electrical tolerances. Always verify pin-to-pin compatibility and electrical parameter alignment before substituting.