October 2007
DP83848T PHYTER® Mini - Industrial Temperature
Single 10/100 Ethernet Transceiver
General Description
Features
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.
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Low-power 3.3V, 0.18µm CMOS technology
Auto-MDIX for 10/100 Mb/s
Energy Detection Mode
3.3V MAC Interface
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.
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
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.
Integrated ANSI X3.263 compliant TP-PMD physical su-
blayer with adaptive equalization and Baseline Wander
compensation
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Error-free Operation up to 137 meters
ESD protection - 4KV Human body model
Configurable LED for link and activity
Supports system clock from oscillator
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.
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)
Applications
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Peripheral devices
Mobile devices
Factory and building automation
Base stations
System Diagram
DP83848T
10BASE-T
or
10/100 Ethernet
Transceiver
MPU/CPU
MII/RMII
100BASE-TX
Clock
Status
LED
Source
Typical Ethernet Application
PHYTER® is a registered trademark of National Semiconductor Corporation.
www.national.com
© 2007 National Semiconductor Corporation