This datasheet introduces the features and characteristics of the Cirrus Logic CS8900A product.
The CS8900A is a single‑chip, full‑duplex Ethernet controller that integrates a direct ISA‑bus interface, 802.3 MAC engine, on‑chip memory, EEPROM interface, and analog front‑end with 10BASE‑T and AUI ports. It is designed for motherboard LAN and adapter applications, offering low cost and small footprint.
The document details the controller's pin description, functional blocks, EEPROM programming, low‑power standby and suspend modes, LED status outputs, media access control, PacketPage architecture, test procedures, and full specifications for industrial and commercial use.
| Maximum current consumption | 55 mA (5 V supply) |
|---|---|
| On‑chip memory size | 4 KB |
| Operating temperature range | -40 °C to 85 °C |
| Package type | LQFP‑100 |
| 10BASE‑T port | Includes analog filters |
The CS8900A consumes up to 55 mA when powered from a 5 V supply.
It includes a 4‑KB page of on‑chip memory.
The device operates from –40 °C up to 85 °C.
It is available in an LQFP‑100 package.