EZ80F920020MOD

Overview

The Zilog EZ80F920020MOD is an eZ80Acclaim! Flash Module designed for embedded system development. It integrates the eZ80F92 MCU, featuring a 20 MHz clock speed, 128 KB on-chip Flash memory, and 8 KB on-chip SRAM. The module includes 512 KB of external zero-wait-state SRAM and supports up to 1 MB of external NOR Flash. Key peripherals include two UARTs, SPI, I2C, IrDA transceiver, and RTC with GoldCap backup. It operates at 3.3 V (3.0–3.6 V range) within a 0°C to +70°C temperature range. The PCB measures 64 x 64 mm and provides 24 general-purpose 5 V-tolerant I/O pins via connectors.

Feature Summary

• eZ80F92 MCU core operating at 20 MHz with 128 KB Flash and 8 KB SRAM
• 512 KB external zero-wait-state SRAM and support for 1 MB external NOR Flash
• Integrated ZHX1810 IrDA transceiver and RTC with onboard GoldCap backup
• 24 general-purpose 5 V-tolerant I/O pins and standard communication interfaces (UART, SPI, I2C)

Applications

• Industrial control systems
• Point-of-sale (POS) terminals
• Security and automation devices
• Communication equipment requiring IrDA connectivity

Procurement Notes

Verify component authenticity through authorized Zilog distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in specific batch documentation. Ensure power supply requirements match the 3.3 V specification. Check for end-of-life notices or obsolescence warnings prior to procurement planning.

Selection Notes

Select this module when rapid prototyping of eZ80Acclaim! based systems is required. It is suitable for designs needing integrated Ethernet expansion capabilities (via CS8900 footprint) and IrDA connectivity. Consider the 64x64mm form factor for space-constrained carrier board integration. Verify compatibility with the eZ80 Development Platform if vertical/horizontal mounting is needed.

Part Context

This module belongs to the eZ80Acclaim! product line, specifically the Flash Module series. It serves as a hardware platform for evaluating the eZ80F92 and eZ80F93 microcontrollers. The module allows developers to test peripheral configurations and memory access timings before designing custom PCBs.

Replacement Considerations

The eZ80F93 MCU can replace the eZ80F92 on this module, offering 64 KB Flash and 4 KB SRAM. No other direct module replacements are documented. Software and hardware adjustments may be necessary due to reduced internal memory resources.