Description
The 80220/80221 are highly integrated analog interface ICs for twisted pair Ethernet applications. The 80220/80221 can be configured for either 100 Mbps (100BaseTX) or 10 Mbps (10Base-T) Ethernet operation. The 80220 is packaged in a 44L package, while the 80221 is packaged in a 64L package and contains a few more features.

Features
■ Single Chip 100Base-TX / 10Base-T Physical Layer Solution
■ Dual Speed - 100/10 Mbps
■ Half And Full Duplex
■ MII Interface To Ethernet Controller
■ MI Interface For Configuration & Status
■ Optional Repeater Interface
■ AutoNegotiation: 10/100, Full/Half Duplex
■ Meets All Applicable IEEE 802.3, 10Base-T, 100Base-TX Standards
■ On Chip Wave Shaping - No External Filters Required
■ Adaptive Equalizer
■ Baseline Wander Correction
■ Interface to External 100Base-T4 PHY
■ LED Outputs
    - Link
    - Activity
    - Collision
    - Full Duplex
    - 10/100
    - User Programmable
■ Many User Features And Options
■ Few External Components
■ Pin configuration
    - 44L PLCC - 80220
    - 64L LQFP - 80221