®
CMOS
MT9080
SMX - Switch Matrix Module
Features
•
•
•
•
•
•
•
Timeslot interchange circuit for digital switch
applications
16 bit wide data bus I/O
2048 x 16 bit wide byte capacity
Dual addressing capability; internal counter
and external address bus
Variable clock and frame rates
Microprocessor interface
CMOS
ISSUE 3
January 1993
Ordering Information
MT9080AP
84 Pin PLCC
-40°C to 70°C
Description
The MT9080 is a flexible memory module suitable for
use as a basic building block in the construction of
large digital switching matrices. It can be configured
as either a Data Memory or a Connection Memory.
Interface to the device is via 16 bit wide data and
address busses. The MT9080 can operate with
variable clock rates up to 16.7 MHz.
Applications
•
Building block for digital switching matrices
used in PBXs, CO equipment, data switching,
etc.
Programmable delay lines
•
D0i/D15i
16
16
2048 x 16
16
Address
MUX
11
11 Bit
Counter
WR
ENABLE
PRECHARGE
Static
Memory
16
D0o/
D15o
A0-A15
CRC
CD
Control Interface
Counter
Reset
ME
FP
CK
ODE DS
CS R/W
Mx
My
Mz
DTA
Figure 1 - Functional Block Diagram
2-101
MITEL [ MITEL NETWORKS CORPORATION ]
