MT8980DP1 Zarlink Semiconductor, Inc., MT8980DP1 Datasheet - Page 3

• Manufacturer Part Number: MT8980DP1
• Description: 256 x 256 Channels (8 TDM Streams at 2.048 Mbps) Non-blocking Digital Switch (DX)
• Manufacturer: Zarlink Semiconductor, Inc.

Pin Description (continued)
DIP
22-
25-
31-
36-
24
29
30
35
38
39
40
40
Pin #
PLCC
6, 18,
25-
29-
35-
41-
28,
27
33
34
39
43
44
40
44
1
D7-D5 Data 7 to 5 (Three-state I/O Pins). These are the bidirectional data pins on the
D4-D0 Data 4 to 0 (Three-state I/O Pins). These are the bidirectional data pins on the
Name
STo7-
STo2-
CSTo Control ST-BUS Output (Complementary Output). Each frame of 256 bits on this ST-BUS
STo3
STo0
ODE Output Drive Enable (Input). If this input is held high, the STo0-STo7 output drivers function
V
NC
SS
microprocessor interface.
microprocessor interface.
Power Input. Negative Supply (Ground).
ST-BUS Output 7 to 3 (Three-state Outputs). These are the pins for the eight 2048
kbit/s ST-BUS output streams.
ST-BUS Output 2 to 0 (Three-state Outputs). These are the pins for the eight 2048
kbit/s ST-BUS output streams.
normally. If this input is low, the STo0-STo7 output drivers go into their high impedance state.
NB: Even when ODE is high, channels on the STo0-STo7 outputs can go high impedance
under software control.
output contains the values of bit 1 in the 256 locations of the Connection Memory High.
No Connection.
Description
MT8980D
2-5