Texas Instruments TNETX3270 specifications Miscellaneous, Power interface

TNETX3270

ThunderSWITCH 24/3 ETHERNET SWITCH

WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS

SPWS043B ± NOVEMBER 1997 ± REVISED APRIL 1999

								Terminal Functions (Continued)
miscellaneous
	TERMINAL			I/O		INTERNAL								DESCRIPTION
	NAME	NO.				RESISTOR
	OSCIN	112		I		None		Master system clock input (83.33-MHz input clock)
		115		I		None		Reset.		is synchronous and, therefore, the system clock must be operational during reset.
	RESET								RESET
power interface
				TERMINAL							INTERNAL				DESCRIPTION
	NAME					NO.					RESISTOR
		8, 14, 34, 40, 55, 68, 74, 81, 88, 94, 100,											Ground. GND is the 0-V reference for the device. All GND
	GND	128, 134, 141, 148, 154, 160, 175, 188,										None
													terminals must be connected.
			194, 201, 208, 214, 220, 235
	VDD(3.3V)	12, 72, 109, 122, 132, 163, 169, 192, 229										None	3.3-V supply voltage. Power for the input, output, and I/O
													terminals.
			4, 17, 31, 45, 58, 64, 77, 91,
	VDD(2.5V)		105, 118, 124, 137, 151, 165, 178,									None	2.5-V supply voltage. Power for the core.
					184, 197, 211, 225, 238
summary of signal terminals by signal group function
							PORT DESCRIPTION					NUMBER OF		MULTIPLIER	TOTAL
												SIGNALS
							LED					2		1	2
							10-Mbit/s port					16		3	48
							10-/100-Mbit/s port					19		3	57
							DIO					17		1	17
							EEPROM interface					2		1	2
							DRAM interface					50		1	50
							Miscellaneous					2		1	2
							JTAG					5		1	5
							Serial MII management					3		1	3
							Total signals								186
												SUMMARY

Assigned terminals

VDD(3.3V)

VDD(2.5V)

GND

Total terminals

186

9

20

25

240

12 POST OFFICE BOX 655303 •DALLAS, TEXAS 75265