MAX3100EPD

Controllers Overview

The MAX3100EPD+ is a universal asynchronous receiver transmitter (UART) optimized for small microcontroller-based systems. It interfaces SPI/MICROWIRE-compatible synchronous serial data to asynchronous ports like RS-232, RS-485, and IrDA. The device includes an on-chip crystal oscillator and baud-rate generator supporting rates up to 230k baud with a 3.6864MHz crystal. It features an 8-word FIFO buffer, software-programmable divider ratios, and flexible interrupt logic with four maskable sources. Operating voltage ranges from +2.7V to +5.5V, with typical supply current of 270µA in active mode and 10µA in shutdown.

Controllers Feature Summary

• SPI/MICROWIRE-Compatible µC Interface
• IrDA SIR Timing Compatible
• 8-Word FIFO Minimizes Processor Overhead at High Data Rates
• Lowest Power: 150µA Operating Current at 3.3V; 10µA in Shutdown with Receive Interrupt

Controllers Applications

• Handheld Instruments
• Intelligent Instrumentation
• UART in SPI Systems
• Small Networks in HVAC or Building Control
• Isolated RS-232/RS-485: Directly Drives Opto-Couplers

Controllers Procurement Notes

Verify the component designation matches the exact suffix EPD+, which indicates a 14-pin plastic DIP package and extended temperature range (-40°C to +85°C). Confirm RoHS compliance status as indicated by the '+' suffix. Ensure the supplier provides traceability documentation consistent with Analog Devices Inc./Maxim Integrated manufacturing standards.

Controllers Selection Notes

Select this part when a compact UART solution is required for microcontrollers lacking native hardware serial ports. The MAX3100EPD+ is suitable for applications needing low power consumption and direct opto-coupler driving capabilities. Consider the 14-pin DIP package for through-hole prototyping or legacy board designs requiring extended industrial temperature operation.

Controllers Part Context

The MAX3100 series represents a family of SPI-to-UART converters designed to reduce pin count in embedded systems. The EPD variant specifically denotes the extended temperature grade housed in a standard 14-pin dual in-line package. This component bridges the gap between synchronous digital interfaces and asynchronous serial communication protocols commonly used in industrial and consumer electronics.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.