M7040N datasheet(2/159 Pages) STMICROELECTRONICS

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M7040N

2/159

TABLE OF CONTENTS

DESCRIPTION ...... ...... ...... ....... ...... ....... ...... ....... ...... ...... .....7

Overview . ....... ...... ...... ....... ...... ....... ...... ....... ...... ...... .....7

Performance ..... ...... ...... ....... ...... ....... ...... ....... ...... ...... .....7

Applications ...... ...... ...... ....... ...... ....... ...... ....... ...... ...... .....7

Product Range (Table 1.) . ...... ....... ...... ....... ...... ....... ...... ...... .....7

Switch/Router Implementation Using the M7040N (Figure 2.) ..... ....... ...... ...... .....7

Signal Names (Table 2.) .. ...... ....... ...... ....... ...... ....... ...... ...... .....8

Connections (Figure 3.) . . . ...... ....... ...... ....... ...... ....... ...... ...... .....9

M7040N Block Diagram (Figure 4.) ....... ...... ....... ...... ....... ...... ...... ....10

MAXIMUM RATING... ...... ...... ....... ...... ....... ...... ....... ...... ...... ....11

Absolute Maximum Ratings (Table 3.) .... ...... ....... ...... ....... ...... ...... .... 11

DC AND AC PARAMETERS. . ...... ....... ...... ....... ...... ....... ...... ...... ....12

DC and AC Measurement Conditions (Table 4.) . . . ....... ...... ....... ...... ...... ....12

M7040N 1.8, 2.5, or 3.3V AC Testing Load (Figure 5.) ..... ...... ....... ...... ...... ....13

M7040N 1.8, 2.5, or 3.3V Input Waveform (Figure 6.) ..... ...... ....... ...... ...... ....13

M7040N 1.8, 2.5, or 3.3V I/O Output Load Equivalent (Figure 7.) .. ....... ...... ...... ....13

Capacitance (Table 5.) . . . ...... ....... ...... ....... ...... ....... ...... ...... ....14

DC Characteristics (Table 6.) .... ....... ...... ....... ...... ....... ...... ...... ....14

AC Timing Waveforms with CLK2X (Figure 8.) .... ....... ...... ....... ...... ...... ....15

AC Timing Waveforms with CLK1X (Figure 9.) .... ....... ...... ....... ...... ...... ....16

AC Timing Parameters with CLK2X (Table 7.) .... ....... ...... ....... ...... ...... ....17

AC Timing Parameters with CLK1X (Table 8.) .... ....... ...... ....... ...... ...... ....18

OPERATION . ....... ...... ...... ....... ...... ....... ...... ....... ...... ...... ....19

Command Busand DQ Bus ..... ....... ...... ....... ...... ....... ...... ...... ....19

Database Entry(Data Array and Mask Array) ..... ....... ...... ....... ...... ...... ....19

Arbitration Logic. . . ...... ...... ....... ...... ....... ...... ....... ...... ...... ....19

Pipeline and SRAM Control ...... ....... ...... ....... ...... ....... ...... ...... ....19

Full Logic . ....... ...... ...... ....... ...... ....... ...... ....... ...... ..... . ....19

Connection Descriptions . . ...... ....... ...... ....... ...... ....... ...... ...... ....19

CLOCKS .... ....... ...... ...... ....... ...... ....... ...... ....... ...... .. .... ....21

Clocks (CLK2X and PHS_L) (Figure 10.) . . ...... ....... ...... ....... ...... ...... ....21

Clocks (CLK1X) (Figure 11.) ..... ....... ...... ....... ...... ....... ...... ...... ....21

Clocks for All Timing Diagrams (Figure 12.) ...... ....... ...... ....... ...... ...... ....22

PLL USAGE . ....... ...... ...... ....... ...... ....... ...... ....... ...... ...... ....22

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