MAX3232IPWRG4

Overview

The MAX3232IPWRG4 is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. The device features two drivers and two receivers, enabling full-duplex communication at data rates up to 250 kb/s. It incorporates internal charge pumps to generate the necessary voltages for RS-232 signaling without external inductors. Key electrical specifications include a maximum operating current of 1 mA and ±15 kV electrostatic discharge (ESD) protection on all RS-232 lines. The component is housed in a TSSOP-16 package and is rated for an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external inductors or transformers.
• Provides robust ±15-kV ESD protection on all RS-232 transceiver lines.
• Supports operation with single 3-V to 5.5-V power supplies.
• Features low-power shutdown mode to extend battery life in portable applications.

Applications

• Industrial control systems requiring reliable serial communication.
• Portable instrumentation and medical devices utilizing battery power.
• Modem and fax machine interface circuits.
• Point-of-sale terminals and barcode scanners.

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS adherence as per Texas Instruments documentation. Confirm the TSSOP-16 package dimensions match the target PCB footprint. Ensure the ordering part number matches the exact functional variant required, as suffixes may denote temperature grades or packaging formats. Cross-reference the manufacturer's latest datasheet revision to confirm pinout compatibility before finalizing procurement.

Selection Notes

Select this component when designing systems requiring full-duplex RS-232 communication with high ESD immunity. It is suitable for space-constrained designs due to the compact TSSOP-16 package. Choose this part over standard RS-232 transceivers if operating from a single low-voltage supply without generating negative voltages externally. Consider the 250 kb/s data rate limit when evaluating higher-speed serial requirements.

Part Context

The MAX3232IPWRG4 belongs to the MAX3232 family of multichannel RS-232 transceivers. This series is designed for low-power, handheld applications where minimal component count is critical. The 'IPWR' designation specifies the TSSOP-16 surface-mount package and reel packaging. The 'G4' suffix typically denotes lead-free material composition and environmental compliance according to Texas Instruments standards.

Replacement Considerations

The TRS3223IPWRG4 is a verified equivalent part offering identical functionality and pinout compatibility. Both components share the same 3-V to 5.5-V operating range and 250 kb/s data rate. Verify that the replacement maintains the same TSSOP-16 package and industrial temperature rating (-40 °C to +85 °C) for direct substitution.