Features: `Single/Dual integrated 10/100/1000Base-T Gigabit Ethernet transceiver
`Supports full duplex at 10/100/1000Mbps, and half duplex at 10/100Mbps
`Supports 2.5V I/O (3.3V input tolerance) GMII and RGMII interfaces in 10/100/1000
mode for RTL8212 (QFP-128 Package)
`Supports RSGMII (2.5Gbps serial high speed interface) in 10/100/1000 mode for
RTL8212N and RTL8211N (QFN-76 Package)
`Crossover detection and auto correction at all 3 speeds
`Automatic detection and correction of wiring pair swaps, pair skew, and pair polarity
`Supports serial LED mode
`Line driver architecture with low power dissipation PAVE= 0.78W/port
`3.3V, 1.8V, and 1.2V power supply (2.5V is generated by internal linear regulator for Digital I/O pads)
`Packages:
`EDHS QFP-128, 14x20mm, 0.5mm lead pitch package
`QFN-76, 9x9mm, 0.4mm pitch package
`0.13m CMOS process
Application·High-density Gigabit Ethernet switches and routersPinout
Specifications
| Parameter |
Min |
Max |
Units |
| Storage Temperature |
-55 |
+150 |
°C |
Supply Voltage Referenced to VSS12 ,AVSS,
AVSSPLL: VDD12, AVDD12, SVDD12 and
AVDDPLL |
GND-0.5 |
+1.32 |
V |
Supply Voltage Referenced to AVSS: AVDD18 and
SVDD18 |
GND-0.5 |
+1.98 |
V |
Supply Voltage Referenced to AVSS: AVDD33 and
RVDD33 |
GND-0.5 |
+3.63 |
V |
| Digital Input Voltage |
GND-0.5 |
VDDD |
V |
| DC Output Voltage |
GND-0.5 |
VDDD |
V |
DescriptionThe RTL8212/RTL8212N/8211N integrate dual/single independent Gigabit Ethernet transceivers into a single IC and performs all the physical layer (PHY) functions for 10Base-T, 100Base-TX, and 1000Base-T Ethernet on category 3 (10Base-T) or category 5 UTP cable (except 1000Base-T half duplex operation).
The RTL8212-GR includes the PCS, PMA, and PMD sub-layers. They perform encoding/decoding, clock/data recovery, digital adaptive equalization, echo cancellers, cross-talk elimination, line driver, as well as all other required support circuit functions. The RTL8212-GR also integrates an internal hybrid that allows the use of inexpensive 1:1 transformer modules.
Each of the two independent transceivers of RTL8212-GR features an industrial standard GMII, MII, and RGMII (Reduced Gigabit Media Independent Interface). To further reduce PCB trace complexity, the RTL8211N/8212N also provides an innovative 2.5Gbps serial interface the Reduced Serial Gigabit Media Independent Interface (RSGMII). Both dual transceivers can simultaneously communicate with the MAC through the same RSGMII interface.
The RTL8212/RTL8212N/8211N adopts mixed mode 0.13m CMOS technology and analog line driver architecture that offers lower power consumption than DAC
architecture.
Two package types are available; a thermally-enhanced 128-pin EDHS-QFP (Exposed Drop-in Heat Sink QFP) package, and a QFN (Quad Flat No-Lead) 76-pin package.
RTL8212-GR Data Sheet
