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PHYTER?? Extreme Temperature Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver
National Semiconductor
Description
The number of applications requiring ethernet connectivity continues to increase. Along with this increased market demand is a change in application requirements. The DP83848YB was designed to allow ethernet connectivity in the harshest environments. Our device meets IEEE 802.3u standards over an EXTREME temperature range of -40°C to 125°C. This device is ideally suited for harsh environments for example wireless remote base stations, automotive/transportation and industrial control applications. The DP83848YB is a highly reliable, feature rich robust device which includes enhanced ESD protection, MII and RMII for maximum flexibility in MPU selection all in a 48 pin LQFP package. With the DP83848YB NATIONAL continues to build on its Ethernet expertise and leadership position by providing the flexibility allowing for ease of implementation by the end user. The DP83848YB features integrated sublayers to support both 10BASE-T and 100BASE-TX Ethernet protocols, which ensures compatibility and interoperability with all other standards based Ethernet solutions.
Features
• Extreme Temperature from -40°C to 125°C
• Low-power 3.3V, 0.18µm CMOS technology
• Low power consumption
• 3.3V MAC Interface
• Auto-MDIX for 10/100 Mb/s
• Energy Detection Mode
• 25 MHz clock out
• SNI Interface (configurable)
• RMII Rev. 1.2 Interface (configurable)
• MII Serial Management Interface (MDC and MDIO)
• IEEE 802.3u MII
• IEEE 802.3u Auto-Negotiation and Parallel Detection
• IEEE 802.3u ENDEC, 10BASE-T transceivers and filters
• IEEE 802.3u PCS, 100BASE-TX transceivers and filters
• IEEE 1149.1 JTAG
• Integrated ANSI X3.263 compliant TP-PMD physical sub-layer with adaptive equalization and Baseline Wander compensation
• Error-free Operation up to 150 meters
• Programmable LED support Link, 10 /100 Mb/s Mode, Activity, and Collision Detect
• Single register access for complete PHY status
• 10/100 Mb/s packet BIST (Built in Self Test)
• 48-pin LQFP package (7mm) x (7mm)
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