EZ80F915050MODG

Overview

The Zilog EZ80F915050MODG is an embedded module based on the eZ80Acclaim!® eZ80F91 microcontroller. It features a 50 MHz CPU core with single-cycle instruction fetch and supports 24-bit addressing for up to 16 MB of address space. The device integrates 256 KB of Flash memory and 16 KB of SRAM (8 KB user, 8 KB Ethernet). Key peripherals include a 10/100 BaseT Ethernet MAC with MII, two UARTs, SPI, I2C, IrDA encoder/decoder, four programmable timers, and a real-time clock. It operates on a 3.0 V to 3.6 V supply with 5 V tolerant inputs.

Feature Summary

• eZ80 CPU Core: High-performance pipelined core running at 50 MHz with single-cycle fetch.
• Memory: 256 KB internal Flash and 16 KB SRAM (8 KB user, 8 KB dedicated to Ethernet).
• Connectivity: Integrated 10/100 BaseT Ethernet MAC with Media-Independent Interface (MII).
• Peripherals: Dual UARTs, SPI, I2C, IrDA, four 16-bit timers, watchdog timer, and real-time clock.

Applications

• Industrial control systems requiring network connectivity.
• Embedded communication devices and gateways.
• Point-of-sale terminals with internet/intranet capabilities.

Procurement Notes

Verify component status as the eZ80F91 family may be subject to discontinuation notices. Confirm RoHS compliance and environmental specifications against current Littelfuse/Zilog documentation. Ensure design-in compatibility with existing PCB footprints for the specific module variant.

Selection Notes

Select this module for applications needing integrated Ethernet and high-speed processing in a compact form factor. Verify that the 3.0 V–3.6 V operating voltage range matches the system power supply. Check if the 144-pin package interface meets the target board's connector requirements.

Part Context

This part belongs to the eZ80Acclaim!® Flash Microcontrollers family. The eZ80F91 MCU is designed for glueless external peripheral interfacing with support for Z80®, Intel®, and Motorola-style buses. It includes on-chip instrumentation (OCI) and Zilog Debug Interface (ZDI) for development.

Replacement Considerations

Consult official Zilog/Littelfuse ordering information for current equivalents. Previous revisions or variants within the eZ80F91 series may have different memory sizes or package options. No direct public substitute part numbers are confirmed in the provided source material.