Description

The W89C91K is an electronic component model in the product category of IC Chips. It serves as an interface between the Attachment Unit Interface and coaxial cable and implements the MAU functions required by a 10BASE2 or 10BASE5 network. The W89C91K provides transmit, receive, jabber lockup, SQE test, and collision presence functions. It is designed to provide a functional solution for a 10BASE2 or 10BASE5 MAU, with low power consumption and a minimal external component count. The W89C91K is available in a standard 16-pin DIP and 28-pin PLCC package.

Specifications and features

• Compatible with IEEE 802.3 10BASE2 and 10BASE5
• CMOS process provides low power consumption
• Mixed-mode circuit design integrates all transceiver electronics except signal and power isolation and minimizes external component count
• On-chip jabber timer and state machine meet the requirements for IEEE 802.3 MAU function
• External selective SQE test function allows operation with IEEE 802.3 compatible repeater
• Precision detection circuit design implements transmit mode collision detection
• External selective jabber lockup function allows infinite data transmission

Application Scenarios

The W89C91K is designed for use in 10BASE2 and 10BASE5 network applications. It can be used in various Ethernet devices that require an interface between the Attachment Unit Interface and coaxial cable, such as network switches, routers, and Ethernet adapters.

Comparison

• Provides transmit, receive, jabber lockup, SQE test, and collision presence functions
• Low power consumption
• Mixed-mode circuit design minimizes external component count
• On-chip jabber timer and state machine meet IEEE 802.3 requirements
• External selective SQE test and jabber lockup functions

No significant disadvantages have been identified for the W89C91K model.