EZ80F920120MOD

Overview

The Zilog EZ80F920120MOD is an Ethernet module built around the eZ80F92 MCU, operating at a 20 MHz clock speed. It integrates 128 KB of on-chip Flash memory and 8 KB of SRAM within the controller, supplemented by 512 KB of onboard zero-wait-state SRAM and 1 MB of off-chip NOR Flash ROM. The module features a 10Base-T Ethernet Media Access Controller (CS8900A) with an RJ45 connector, an IrDA transceiver, and a Real-Time Clock supported by a GoldCap backup. It provides 24 general-purpose I/O pins and supports multiple communication interfaces including UART, SPI, and I2C.

Feature Summary

• eZ80Acclaim! Ethernet MCU with 20 MHz factory-default clock
• 10Base-T Ethernet MAC with onboard RJ45 connector
• 512 KB zero-wait-state onboard SRAM and 1 MB off-chip NOR Flash
• GoldCap backup for Real-Time Clock (RTC)
• 24 general-purpose 5 V-tolerant I/O pinouts

Applications

• Industrial control systems
• Embedded networking applications
• Point-of-sale (POS) terminals
• Security and automation devices

Procurement Notes

Verify component authenticity through authorized Zilog distributors or verified suppliers. Confirm RoHS compliance status as indicated in distributor listings. Ensure the module version matches the required hardware revision for specific development platform compatibility.

Selection Notes

Select this module for projects requiring integrated Ethernet connectivity and IrDA support. It is designed for horizontal or vertical mounting onto the eZ80 Development Platform. Consider the 3.3 V power supply requirement and the standard operating temperature range of 0°C to +70°C when designing the carrier board.

Part Context

This module is part of the eZ80Acclaim! product family, which offers flash versions of the eZ80 processor core. It serves as an expandable solution for rapid development of embedded systems needing Internet/Intranet connectivity. The module can be replaced with the eZ80F93 variant if smaller memory sizes are sufficient.

Replacement Considerations

The eZ80F93 MCU can replace the eZ80F92 on this module footprint, offering 64 KB of internal Flash and 4 KB of internal SRAM instead of 128 KB and 8 KB respectively.