MAX3227EIDBG4

Overview

The MAX3227EIDBG4 is a single-channel 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 ±15-kV electrostatic discharge (ESD) protection on all RS-232 signals and transceiver pins, ensuring robust performance in harsh environments. It utilizes small external charge pumps with four 0.1-µF capacitors for operation. The component is housed in a 16-pin SSOP package and supports data rates up to 30 kb/s.

Feature Summary

• Integrated ±15-kV ESD protection on signal pins
• Single-driver/single-receiver configuration
• Low power consumption with shutdown mode

Applications

• Portable equipment requiring RS-232 connectivity
• Modems and fax machines
• Industrial control systems

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as per Texas Instruments documentation. Confirm the package type matches the required PCB footprint. Check current availability status as older revisions may be discontinued or replaced by newer equivalents. Ensure the operating temperature range meets the application requirements.

Selection Notes

Select this component when a single full-duplex RS-232 channel is required with high ESD immunity. It is suitable for battery-powered applications due to low supply current and shutdown capabilities. Compare pin compatibility with existing designs if replacing older MAX3227 variants without the G4 suffix.

Part Context

This part belongs to the MAX3227 family of multichannel line drivers/receivers. It is functionally similar to the MAX3223 but provides only one driver and one receiver. The G4 suffix typically denotes environmental compliance. It serves as a bridge between microcontroller UARTs and RS-232 serial ports.

Replacement Considerations

MAX3227EIDB: Older revision without G4 suffix. MAX3227EIDBR: Tape and reel packaging variant. TRS3227EIDBR: Pin-compatible alternative from TI.