Datasheet

DP83848T PHYTER® Mini - Industrial Temperature Single 10/100 Ethernet Transceiver
© 2008 National Semiconductor Corporation
www.national.com
DP83848T PHYTER
®
Mini - Industrial Temperature
Single 10/100 Ethernet Transceiver
May 2008
System Diagram
PHYTER
®
is a registered trademark of National Semiconductor Corporation.
Status
10BASE-T
or
100BASE-TX
MII/RMII
Typical Ethernet Application
Magnetics
RJ-45
Clock
LED
DP83848T
10/100 Ethernet
Transceiver
Media Access Controller
MPU/CPU
Source
Features
• Low-power 3.3V, 0.18µm CMOS technology
• Auto-MDIX for 10/100 Mb/s
• Energy Detection Mode
• 3.3V MAC Interface
• RMII Rev. 1.2 Interface (configurable)
• MII Interface
• MII serial management interface (MDC and MDIO)
• 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
• Integrated ANSI X3.263 compliant TP-PMD physical su-
blayer with adaptive equalization and Baseline Wander
compensation
• Error-free Operation up to 137 meters
• ESD protection - 4KV Human body model
• Configurable LED for link and activity
• Supports system clock from oscillator
• Single register access for complete PHY status
• 10/100 Mb/s packet BIST (Built in Self Test)
• 40 pin LLP package (6mm) x (6mm) x (0.8mm)
General Description
The DP83848T PHYTER Mini addresses the quality, reli-
ability and small form factor required for space sensitive
applications in embedded systems operating in the
industrial temperature range.
The device offers performance far exceeding the IEEE
specifications, with superior interoperability and industry
leading performance beyond 137m of Cat-V cable. The
DP83848T also offers Auto-MDIX to remove cabling
complications. DP83848T has superior ESD protection,
greater than 4KV Human Body Model, providing
extremely high reliability and robust operation, ensuring a
high level performance in all applications.
National’s DP83848T incorporates a number of system
cost-reducing features not found on other supplier’s
Physical layer products. For example, the DP83848T
incorporates a 25MHz clock out that eliminates the need
and hence the space and cost, of an additional Media
Access Control (MAC) clock source component. In addi-
tion, both MII and RMII are supported ensuring ease and
flexibility of design.
The DP83848T is offered in a tiny 6mm x 6mm LLP 40-
pin package and is ideal for industrial controls, build-
ing/factory automation, transportation, test equipment
and wireless base stations.
Applications
• Peripheral devices
• Mobile devices
• Factory and building automation
• Base stations