This document introduces the features and characteristics of the new CS8952 network card chip released by Cirrus Logic company. The chip uses CMOS technology and has the characteristics of high performance, low cost and long distance transmission.
The CS8952 is a single‑chip IEEE 802.3 physical interface IC for 100BASE‑TX, 100BASE‑FX and 10BASE‑T. It features an adaptive equalizer for cable lengths over 160 m, low transmit jitter (<400 ps), and six LED indicators for link status. The device uses a standard Media Independent Interface (MII) and includes integrated RX/TX filters and auto‑negotiation support.
The datasheet provides absolute maximum ratings, recommended operating conditions, pin descriptions, register maps, and detailed electrical characteristics for both 10BASE‑T and 100BASE‑X modes. Package information shows a 100‑pin TQFP form factor with specific dimensions and pin assignments for crystal, power, and signal connections.
| Core Power Supply (VDD) | 5 V |
|---|---|
| Typical Input Current (except supply pins) | ±10.0 mA |
| Operating Temperature Range | -55 °C to +125 °C |
| Transmit Jitter | < 400 ps |
| Typical Power Consumption | 135 mA at 5 V |
| Package Type | 100‑pin TQFP |
The device operates from –55 °C up to +125 °C.
Typical power consumption is about 135 mA when running from a 5 V supply.
Pin 96 (XTAL_I) is the crystal input pin.