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 - 80221Pinout
SpecificationsAbsolute maximum ratings are limits beyond which may
cause permanent damage to the device or affect device
reliability. All voltages are specified with respect to GND,
unless otherwise specified.
VCC Supply Voltage ..................................-0.3V to 6.0V
All Inputs and Outputs
with Respect to GND ........................-0.3V to VCC+0.3V
Package Power Dissipation, ...............2.0 Watt @ 70
Storage Temperature ..............................-65 to +150
Temperature Under Bias ............................-10 to +80
Lead Temperature (Soldering, 10 Sec) ................ 260
Body Temperature (Soldering, 30 Sec) ................ 220
DescriptionThe 80220/80221 are highly integrated analog interface IC's for twisted pair Ethernet applications. The 80220/ 80221 can be configured for either 100 Mbps (100Base- TX) 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.
The 80220/80221 consist of 4B5B/Manchester encoder/ decoder, scrambler/descrambler, 100Base-TX/10Base-T twisted pair transmitter with wave shaping and output driver, 100Base-TX/10Base-T twisted pair receiver with on chip equalizer and baseline wander correction, clock and data recovery, AutoNegotiation, controller interface (MII), and serial port (MI).
The addition of internal output waveshaping circuitry and on-chip filters eliminates the need for external filters normally required in 100Base-TX and 10Base-T applications.
The 80220/80221 can automatically configure itself for 100 or 10 Mbps and Full or Half Duplex operation with the on-chip AutoNegotiation algorithm.
The 80220/80221 can access eleven 16-bit registers though the Management Interface (MI) serial port. These registers contain configuration inputs, status outputs, and device capabilities.
The 80220/80221 are ideal as media interfaces for 100Base-TX/10Base-T adapter cards, motherboards, repeaters, switching hubs, and external PHY's.
80220 Data Sheet
