The SMSC COM20020I is a 5Mbps ARCNET (ANSI 878.1) controller with 2K x 8 dual-port RAM. It is ideal for industrial/factory/building automation and transportation applications. The controller requires minimal microcontroller and media interface logic and supports flexible interfaces for use with all microcontrollers or microprocessors. It features automatic detection of microcontroller interface type, command chaining for packet queuing, software programmable node ID, support for various network topologies, and more.
The SMSC COM20020I is a general-purpose communications controller designed for networking microcontrollers and intelligent peripherals in industrial, automotive, and embedded control environments. It utilizes an ARCNET protocol engine to provide a deterministic token-passing scheme with data rates up to 5 Mbps.
Key features include 2K x 8 on-chip dual-port RAM, command chaining for packet queuing, and flexible interfaces supporting both traditional hybrid signaling for long distances and RS485 differential drivers. The device supports up to 255 nodes and operates with a single +3.3V supply across an industrial temperature range of -40°C to +85°C.
| Data Rate | 5 Mbps |
|---|---|
| On-Chip RAM | 2K x 8 |
| Supply Voltage | +3.3V |
| Operating Temperature | -40°C to +85°C |
| Max Nodes Supported | 255 |
The device supports data rates up to 5 Mbps.
Yes, it includes 2K x 8 On-Chip Dual Port RAM.