MT90863AL1 데이터 시트보기 (PDF) - Mitel Networks

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MT90863AL1

3V Rate Conversion Digital Switch

Mitel Networks 

Advance Information

MT90863

Pin Description (continued)

128 MQFP

Pin#

144 BGA

Pin#

Name

Description

18-25

G1, H1, H2,

H3, J2, J1,J3,

K1

A0 - A7 Address 0 - 7 (5V Tolerant Input): These lines provide the A0 to A7

address lines to the internal memories.

26

K2

DS Data Strobe (5V Tolerant Input): This active low input works in

conjunction with CS to enable the read and write operations.

27

L2

R/W Read/Write (5V Tolerant Input): This input controls the direction of

the data bus lines (D0-D15) during a microprocessor access.

28

31-38,

40-47

L1

M1, N1, M2, N2,

M3, L4, N3, L5,

M4, N4, M5,

L6, M6, N5, N6,

M7,

CS Chip Select (5V Tolerant Input): Active low input used by a

microprocessor to activate the microprocessor port.

D0 - 7, Data Bus 0 -15 (5V Tolerant I/O): These pins form the 16-bit data bus

D8 - D15 of the microprocessor port.

48

N7

DTA Data Transfer Acknowledgment (5V Tolerant Three-state Output):

This active low output indicates that a data bus transfer is complete. A

pull-up resistor is required to hold a HIGH level when the pin is tri-

stated.

51-54

55-62

N8, M8, N9,

N10

M9, N11, L9,

M10, L10, N12,

M11, N13

STi0 - 3

Serial Input Streams 0 to 3 (5V Tolerant Inputs): In 2Mb/s or

Subrate Switching mode, these inputs accept data rates of 2.048 Mb/s

with 32 channels per stream. In 8Mb/s mode, these inputs accept data

rates of 8.192 Mb/s with 128 channels per stream.

STi4 - 11 Serial Input Streams 4 to 11 (5V Tolerant Inputs): In 2Mb/s or Sub-

rate Switching mode, these inputs accept data rates of 2.048Mb/s

with 32 channels per stream.

63

64-66

L11

STi12 Serial Input Streams 12 (5V Tolerant Input): In 2Mb/s mode, this

input accepts data rate of 2.048Mb/s with 32 channels per stream

respectively. In Sub-rate Switching mode, this pin accepts 2.048Mb/s

with 128 channels per stream for Sub-rate switching application.

M12, M13, L12 STi13 - 15 Serial Input Streams 13 to 15 (5V Tolerant Inputs): In 2Mb/s mode,

these inputs accept a data rate of 2.048Mb/s with 32 channels per

stream.

69

L13

ODE Output Drive Enable (5V Tolerant Input): This is the output enable

control for the STo0 to STo15 serial outputs and STio0 to STio31 serial

bidirectional outputs.

70-73

K13, K12, J13,

J12

STo0 - 3

Serial Output Streams 0 to 3 (5V Tolerant Three-state Outputs): In

2Mb/s or Sub-rate Switching mode, these outputs have data rates of

2.048 Mb/s with 32 channels per stream respectively. In 8Mb/s mode,

these outputs have data rates of 8.192 Mb/s with 128 channels per

stream

74-77,

80-83

H11, H13, H12, STo4 - 7, Serial Output Streams 4 to 11 (5V Tolerant Three-state Outputs):

G13, G12, F13, STo8 - 11 In 2Mb/s or Sub-rate Switching mode, these outputs have data rates of

F12, E13

2.048Mb/s with 32 channels per stream

5

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