MAX3227EIDBR

Overview

The MAX3227EIDBR is a single-channel RS-232 transceiver manufactured by Texas Instruments, housed in a 16-pin SSOP package. It operates on a supply voltage range of 3 V to 5.5 V and supports data rates up to 1 Mbps. The device features full-duplex communication with one driver and one receiver. Key electrical specifications include a propagation delay of 0.15 µs, an operating supply current of 1 mA, and ±15 kV electrostatic discharge (ESD) protection on all inputs and outputs. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated ±15-kV ESD protection on all RS-232 signal pins for enhanced robustness
• Single-driver, single-receiver architecture optimized for compact designs
• Low power consumption with shutdown mode capability
• Compliance with TIA/EIA-232-F interface standards

Applications

• Portable equipment requiring serial communication interfaces
• Modems and fax machines
• Industrial control systems with RS-232 connectivity
• Point-of-sale terminals

Procurement Notes

Verify the specific suffix 'IDBR' corresponds to the SSOP-16 package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets before procurement. Ensure pinout compatibility with existing PCB layouts as package variations may exist within the same family.

Selection Notes

Select this component when a single full-duplex RS-232 channel is required with high ESD immunity. Compare against the MAX3223EIDBR if two channels are needed, or the TRS3227EIDBR for potential cost alternatives. Verify that the 1 Mbps data rate meets system requirements and that the 16-SSOP footprint fits the design constraints.

Part Context

This part belongs to the MAX322x series of low-power RS-232 transceivers from Texas Instruments. It shares architectural similarities with other members like the MAX3223E and MAX3237E but differs in channel count and package options. The 'E' designation typically indicates extended temperature ranges and improved ESD performance compared to standard variants.

Replacement Considerations

The MAX3227IDBR is listed as a parameter-equivalent alternative. Verify functional equivalence regarding drive strength and ESD ratings before substitution.