MT90870AG Zarlink, MT90870AG Datasheet - Page 12

• Manufacturer Part Number: MT90870AG
• Description: Switch Fabric 12K x 12K/8K x 4K 1.8V/3.3V 272-Pin BGA Tray
• Manufacturer: Zarlink

Specifications of MT90870AG

• Package: 272BGA
• Number Of Ports: 32
• Fabric Size: 12K x 12K|8K x 4K
• Switch Core: Non-Blocking|Blocking
• Port Speed: 2.048|4.096|8.192|16.384 Mbps
• Operating Supply Voltage: 1.8|3.3 V

Pin Description
V
V
V
V
BSTi0 - 15
BSTi16 - 31
DD_IO
DD_CORE
DD_PLL
SS (GND)
Name
D6, D11, D15, F4,
F17, K4, L17, R4,
R17, U6, U10,
U15
A7, B4, B12, D14,
K1, K20, N3, P18,
T17, U16, V1, V5,
Y7, Y11, Y14
U12
A1, D4, D8, D13,
D17, H4, H17, J9,
J10, J11, J12, K9,
K10, K11, K12, L9,
L10, L11, L12, M9,
M10, M11, M12,
N4, N17, U4, U8,
U11, U13, U17
K3, L1, L2, L3, L4,
M1, M2, M3, M4,
N1, N2, P1, P2,
P3, P4, R1
R2, R3, T1, T2,
T3, T4, U1,W1,
W2, W3, Y1, Y2,
U5, V4, W4, Y4
Coordinates
Package
Power Supply for Periphery Circuits: +3.3 V
Power Supply for Core Logic Circuits: +1.8 V
Ground
Backplane Serial Input Streams 0 to 15 (5 V Tolerant, Internal pull-
down). In Non-32 Mb/s Mode, these pins accept serial TDM data streams
at a data-rate of:
16.384 Mb/s (with 256 channels per stream),
8.192 Mb/s (with 128 channels per stream),
4.096 Mb/s (with 64 channels per stream), or
2.048 Mb/s (with 32 channels per stream).
The data-rate is independently programmable for each input stream.
In 32 Mb/s Mode, these pins accept serial TDM data streams at a fixed
data-rate of 32.768 Mb/s (with 512 channels per stream).
Backplane Serial Input Streams 16 to 31 (5 V Tolerant, Internal pull-
down).
In Non-32 Mb/s Mode, these pins accept serial TDM data streams at a
data-rate of:
16.384 Mb/s (with 256 channels per stream),
8.192 Mb/s (with 128 channels per stream),
4.096 Mb/s (with 64 channels per stream), or
2.048 Mb/s (with 32 channels per stream).
The data-rate is independently programmable for each input stream.
In 32 Mb/s Mode, these pins are unused and should be externally
connected to a defined logic level.
Power Supply for Analog PLL: +1.8 V
Zarlink Semiconductor Inc.
MT90870
12
Description
Data Sheet