MT90869AG Zarlink, MT90869AG Datasheet - Page 6

• Manufacturer Part Number: MT90869AG
• Description: Switch Fabric 16K x 16K/8K x 8K 1.8V/3.3V 272-Pin BGA Tray
• Manufacturer: Zarlink

Specifications of MT90869AG

• Package: 272BGA
• Number Of Ports: 64
• Fabric Size: 16K x 16K|8K x 8K
• Switch Core: Non-Blocking|Blocking
• Port Speed: 8.192|4.096|2.048 Mbps
• Operating Supply Voltage: 1.8|3.3 V

MT90869
Data Sheet
List of Figures
Figure 1 - MT90869 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2 - MT90869 PBGA Connections (272 PBGA) Pin Diagram
(as viewed through top of package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 3 - 8,192 x 8,192 Channels (16 Mb/s), Bidirectional Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 4 - 16,384 x 16,384 Channels (16 Mb/s), Unidirectional Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5 - 12 K by 4 K Blocking Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 6 - Local Port Timing Diagram for 2,4,8 and 16 Mb/s stream rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 7 - Backplane Port Timing Diagram for 2, 4, 8, 16 and 32 Mb/s stream rates . . . . . . . . . . . . . . . . . . . . . . 22
Figure 8 - Backplane and Local Frame Pulse Alignment for Data Rates of 2 Mb/s, 4 Mb/s, 8 Mb/s and 16 Mb/s. 23
Figure 9 - Backplane and Local Input Channel Delay Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 10 - Backplane and Local Input Bit Delay Timing Diagram for Data Rate of 16 Mb/s. . . . . . . . . . . . . . . . . 25
Figure 11 - Backplane and Local Input Bit Delay Timing Diagram for Data Rate of 8 Mb/s. . . . . . . . . . . . . . . . . . 26
Figure 12 - Backplane and Local Output Advancement Timing diagram for Data Rate of 16 Mb/s. . . . . . . . . . . . 27
Figure 13 - Local Port External High Impedance Control Bit Timing (ST-Bus Mode) . . . . . . . . . . . . . . . . . . . . . . 31
Figure 14 - Backplane Port External High Impedance Control Bit Timing (Non-32 Mb/s mode) . . . . . . . . . . . . . . 35
Figure 15 - Backplane Port External High Impedance Control Timing (32 Mb/s Mode) . . . . . . . . . . . . . . . . . . . . 39
Figure 16 - Constant Switch Delay: Examples of different stream rates and routing. . . . . . . . . . . . . . . . . . . . . . . 40
Figure 17 - Examples of BER transmission channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 18 - Frame Boundary Conditions, ST- BUS Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Figure 19 - Frame Boundary Conditions, GCI - BUS Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 20 - Backplane and Local Clock Timing Diagram for ST-BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 21 - Backplane and Local Clock Timing for GCI-BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Figure 22 - ST-BUS Backplane Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 23 - ST-BUS Backplane Data Timing Diagram (32 Mb/s, 16 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 24 - GCI BUS Backplane Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 25 - GCI BUS Backplane Data Timing Diagram (32 Mb/s, 16 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Figure 26 - ST-BUS Local Timing Diagram (16 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 27 - ST-BUS Local Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 28 - Serial Output and External Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 29 - Output Driver Enable (ODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 30 - Motorola Non-Multiplexed Bus Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
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