3X38FTR

Features:

 Compatible with IEEE 802.3 10Base-T standard for category 3 unshielded twisted-pair (UTP) cable.
 Compatible with the reduced MII (RMII) specification of the RMII consortium version 1.2.
 Selectable 7-pin RMII or 2-pin serial MII (SMII).
 Autopolarity detection and correction.
 Adjustable squelch level for extended line length capability (two levels).
 On-chip filtering eliminates the need for external filters.
 Half- and full-duplex operations.


Pinout




Specifications

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute
stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.

Parameter	Symbol	Min	Max	Unit
Ambient Operating Temperature	TA	0	70	°C
Storage Temperature	Tstg	-40	125	°C
Power Dissipation	PD	-	3.5	w
Voltage on Any Pin with Respect to Ground	-	-0.5	VDD + 0.3	v
Maximum Supply Voltage	-	-	3.8	v

Description

The 3X38FTR reduced media independent interface (RMII) is a low pin count interface specification promulgated by the RMII consortium. This specification reduces the total number of pins from 16 for the IEEE 802.3U MII interface to seven for the RMII. Architecturally, the 3X38FTR RMII specification provides for an additional reconciliation sublayer on either side of the MII but, in the 3X38, has been implemented in the absence of the MII.

The management interface (MDIO/MDC) of the 3X38FTR remains identical to that defined in IEEE 802.3u.