This is a product specification of Zilog's eZ80F91 Mini Enet Module
The eZ80F91 Mini Enet Module is a compact Ethernet module designed for embedded systems that need network connectivity. It is powered by Zilog's eZ80F91 microcontroller and provides 10/100 Mbps Ethernet, on‑chip Flash and SRAM, and a range of peripheral interfaces.
The document details module features, controller specifications, block diagrams, pin assignments for connectors J1 and J2, mechanical dimensions, absolute maximum ratings, a bill of materials, and schematic diagrams, concluding with customer support information.
| Factory-default crystal oscillator input | 5 MHz |
|---|---|
| Maximum operating speed | 50 MHz |
| Ethernet PHY | 10/100 Base‑T with RJ45 connector |
| External SRAM | 128 KB |
| On‑chip Flash memory | 256 KB |
| On‑chip SRAM | 8 KB |
| Power supply voltage | 3.3 V |
| Operating temperature range | 0 °C to +70 °C |
| Module dimensions | 50 mm × 47.5 mm |
The module operates from 0 °C up to +70 °C.
It uses a 10/100 Base‑T Ethernet PHY with an RJ45 connector.
The controller includes 256 KB of on‑chip Flash memory.
The module measures 50 mm by 47.5 mm.