TI-DP83TC814S-Q1.pdf
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DP83TC814x-Q1 100BASE-T1 Automotive Ethernet PHY
1 Features
• Open Alliance and IEEE 802.3bw 100BASE-T1
compliant
– Passes Level IV emissions with Integrated LPF
• SAE J2962-3 EMC compliant
• Configurable I/O voltages: 3.3 V, 2.5 V, and 1.8 V
• MAC interfaces: MII, RMII, RGMII and SGMII
• Optional separate voltage rail for MAC interface
pins (3.3 V, 2.5 V, 1.8 V)
• AEC-Q100 qualified for automotive applications:
– Temperature grade 1: –40°C to +125 °C
ambient operating temperature
– ±8-kV HBM ESD for pins 12 and 13
– IEC61000-4-2 ESD classification level 4 for
pins 12 and 13: ±8-kV contact discharge
• IEEE 1588 SFD support
• TSN compliant with 802.3br frame pre-emption
support
• Low active power operation: < 230 mW
• Diagnostic tool kit
– Signal quality indication (SQI)
– Time domain reflectometry (TDR)
– Electrostatic discharge sensor
– Voltage sensor
– PRBS Built-in Self-Test
– Loopbacks
• VQFN, wettable flank packaging
2 Applications
• ADAS
• Gateway and Body Control
• Telematics
3 Description
The DP83TC814-Q1 device is an IEEE 802.3bw-
compliant automotive PHYTER
™
Ethernet physical
layer transceiver which can work with Unshielded
Twisted Pair cable. It provides all physical layer
functions needed to transmit and receive data over
unshielded single twisted-pair cables. The device
provides xMII flexibility with support for standard MII,
RMII, RGMII, and SGMII MAC interfaces.The PHY
also integrates a low pass filter on the MDI side to
reduce emissions.
This device includes the Diagnostic Tool Kit, providing
an extensive list of real-time monitoring tools, debug
tools and test modes. Within the tool kit is the first
integrated electrostatic discharge (ESD) monitoring
tool. It is capable of counting ESD events on MDI
as well as providing real-time monitoring through the
use of a programmable interrupt. Additionally, the
DP83TC814S-Q1includes a pseudo random binary
sequence (PRBS) frame generation tool, which is
fully compatible with internal loopbacks, to transmit
and receive data without the use of a MAC. The
device is housed in a 6.00-mm × 6.00-mm, 36-pin
VQFN wettable flank package. This device is pin-2-
pin compatible with DP83TG720 (1000BASE-T1).
It is also form factor compatible with DP83TC811.
This would allow for a single PCB layout to be
used for DP83TC811, DP83TC812, DP83TC814, and
DP83TG720.
Device Information
PART NUMBER PACKAGE
(1)
BODY SIZE (NOM)
DP83TC814S-Q1 VQFN (36) 6.00 mm × 6.00 mm
DP83TC814R-Q1 VQFN (36) 6.00 mm × 6.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
CPU/MPU
MAC
DP83TC81xS-Q1
100BASE-T1
Ethernet PHY
25MHz
Clock Source
Status
LEDs
MII
RMII
RGMII
SGMII
100BASE-T1
IEEE 802.3bw
Automotive
Connector
GND
CMC
CM
Termination
Simplified Schematic
DP83TC814S-Q1, DP83TC814R-Q1
SNLS663 – DECEMBER 2021
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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