MT89L85AN Zarlink Semiconductor, Inc., MT89L85AN Datasheet

no-image

MT89L85AN

Manufacturer Part Number
MT89L85AN
Description
Switch Fabric, 16.384Mbps Switching Bandwidth, 3.3V Supply Voltage, 48-SSOP
Manufacturer
Zarlink Semiconductor, Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MT89L85AN
Manufacturer:
ZARLINK
Quantity:
8
Part Number:
MT89L85AN
Manufacturer:
ZARLINK
Quantity:
20 000
Features
Applications
STi0
STi1
STi2
STi3
STi4
STi5
STi6
STi7
3.3 volt supply
5V tolerant inputs and TTL compatible outputs
256 x 256 channel non-blocking switch
Programmable frame integrity for wideband
channels
Automatic identification of ST-BUS/GCI
interface backplanes
Per channel tristate control
Patented message mode
Non-multiplexed microprocessor interface
Available in PLCC-44 and SSOP-48 packages
Pin compatible with MT8985 device
Low power consumption
Medium size digital switch matrices
Hyperchannel switching (e.g., ISDN H0)
ST-BUS/MVIP
Serial bus control and monitoring
Centralized voice processing systems
Data multiplexer
** for 48-pin SSOP only
Converter
Parallel
Serial
to
interface functions
Memory
Data
Figure 1 - Functional Block Diagram
DS
C4i
Counter
Frame
CS R/W A5/
Control Register
Control Interface
F0i
RESET
A0
**
DS5194
Description
The MT89L85 Enhanced Digital Switch device is an
upgraded 3-volt version of the MT8985 Digital
Switch. It is pin compatible with the MT8985 and
retains all of the MT8985's functionality. The
enhanced digital swtich
PCM-encoded voice or data, under microprocessor
control, in digital exchanges, PBXs and any ST-BUS/
MVIP
connections for up to 256 64kb/s channels. Each of
the eight serial inputs and outputs consist of 32 64
kbit/s channels multiplexed to form a 2048 kbit/s
stream.
applications,
selection between variable or constant throughput
delays. The constant throughput delay feature allows
grouped channels such as ISDN H0 to be switched
through
integrity. The MT89L85 is ideal for medium sized
mixed voice/data switch and voice processing
applications.
V
DTA D7/
CMOS ST-BUS™ FAMILY
DD
V
SS
D0
MT89L85AP
MT89L85AN
environment.
the
As
Connection
the
the
Memory
device
CSTo
Output
MUX
Enhanced Digital Switch
Ordering Information
-40∞ C to +85∞ C
device
main
44 Pin PLCC
48 Pin SSOP
ISSUE 2
It
maintaining
Advance Information
is designed for switching
provides
function
provides
Converter
Parallel
Serial
ODE
to
MT89L85
its
in
simultaneous
September 1999
per-channel
sequence
switching
STo0
STo1
STo2
STo3
STo4
STo5
STo6
STo7
1

Related parts for MT89L85AN

MT89L85AN Summary of contents

Page 1

... STi6 STi7 ** for 48-pin SSOP only CMOS ST-BUS™ FAMILY DS5194 MT89L85AP MT89L85AN Description The MT89L85 Enhanced Digital Switch device is an upgraded 3-volt version of the MT8985 Digital Switch pin compatible with the MT8985 and retains all of the MT8985's functionality. The ...

Page 2

MT89L85 STi3 7 STi4 8 STi5 9 STi6 10 STi7 F0i 13 C4i PIN PLCC Pin Description Pin # Name 44 48 PLCC SSOP 2 2 DTA Data ...

Page 3

Advance Information Pin Description Pin # Name 44 48 PLCC SSOP Read/Write (Input). This input controls the direction of the data bus lines (D0-D7 R/W during a microprocessor access. Chip Select (Input). Active low input enabling a microprocessor ...

Page 4

MT89L85 time slot interchange functions throughput delay capabilities on a per-channel basis. For voice applications, the variable delay mode can be selected ensuring minimum throughput delay between input and output data. In multiple or grouped channel data applications, the constant ...

Page 5

Advance Information Variable Delay mode The delay in this mode is dependent only on the combination of source and destination channels and it is not dependent on the input and output streams. The minimum delay achievable in the MT89L85 device ...

Page 6

MT89L85 description, the address input lines and the Stream Address bits (STA) of the Control register give the user the capability of selecting all positions of the MT89L85 Data and Connect memories. The data in the Control register consists of ...

Page 7

Advance Information circuitry the contents of the CSTo bit is output one channel before the corresponding channel on the ST- BUS streams. For example, the contents of CSTo bit in position 0 (ST0, CH0) of the CMH, is transmitted synchronously ...

Page 8

MT89L85 During the microprocessor initialization routine, the microprocessor should program the desired active paths through the matrices, and put channels into the high impedance state. Care should be taken that no two connected ST-BUS outputs drive the bus simultaneously. When ...

Page 9

Advance Information Analog Connections Access to Public Network T1/E1 predictable data transfer delays that can be implemented at a reasonable cost. The Low Latency Isochronous Network is one of the alternatives that system designers have chosen to accommodate this requirement ...

Page 10

MT89L85 To Video, Data, Fax and other services MVIP Server 1 ST-BUS MT89L85s MH89760B MH89790B MT8930B MT8930B Local T1/E1 Link Server 3 (256 PORT SWITCH MODULE) • • • MH89760B/790B MH89760B/790B • MH89760B/790B • • Local T1/E1 Link MT8972B ST-BUS ...

Page 11

Advance Information 8 Input Streams From MVIP 8 Input On-Board ST-BUS Streams FDL HDLC MT8952B T1/E1 MH89760B or MH89790B HDLC MT8952B ANALOG D-PHONE MT8992/93 Figure 10 - Dual T1/E1 Card Functional Block Diagram MT89L85 #1 CSTo MVIP Direction MT89L85 #2 ...

Page 12

MT89L85 S INTERFACE HDLC MT8930B DIGITAL PHONE HDLC MT8992/93 Figure 11 - S-Access Card Functional Block Diagram 12 MVIP HEADER MVIP STo1-7 MVIP STi1-7 STi7-1 SWITCH MATRIX MT89L85 STi0 STo0 DPLL MT8941 PC INTERFACE Advance Information STo7-1 DTMF RECEIVER MT8870 ...

Page 13

Advance Information Absolute Maximum Ratings* Parameter Voltage on Digital Inputs 3 Current at Digital Outputs 4 Storage Temperature 5 Package Power Dissipation * Exceeding these values may cause permanent damage. Functional operation under ...

Page 14

MT89L85 AC Electrical Characteristics Voltages are with respect to ground (VSS) unless otherwise stated. Characteristics 1 Frame Pulse width 2 Frame Pulse setup time 3 Frame Pulse hold time 4 STo delay Active to Active 5 STi setup time 6 ...

Page 15

Advance Information AC Electrical Characteristics Voltages are with respect to ground (VSS) unless otherwise stated. Characteristics 1 Clock Period 2 Pulse Width 3 Frame Width High 4 Frame Setup 5 Frame Hold 6 Data Delay/Clock Active to Active 7 Serial ...

Page 16

MT89L85 AC Electrical Characteristics Characteristics 1 O STo0/7 Delay - Active to High STo0/7 Delay - High Z to Active Output Driver Enable Delay CSTo Output Delay S † Timing is ...

Page 17

Advance Information AC Electrical Characteristics Voltages are with respect to ground (VSS) unless otherwise stated . Characteristics 1 CS Setup from DS rising 2 R/W Setup from DS rising 3 Add setup from DS rising 4 CS hold after DS ...

Page 18

Package Outlines Dim D General- (lead coplanarity) A Notes Not ...

Page 19

Small Shrink Outline Package (SSOP Suffix Pin Notes: 1) Not to scale 2) Dimensions in inches 3) (Dimensions in millimeters) 4) Ref. JEDEC Standard M0-150/M0118 for 48 Pin 5) A ...

Page 20

Package Outlines Dim D General- (lead coplanarity) A Notes Not ...

Page 21

Small Shrink Outline Package (SSOP Suffix Pin Notes: 1) Not to scale 2) Dimensions in inches 3) (Dimensions in millimeters) 4) Ref. JEDEC Standard M0-150/M0118 for 48 Pin 5) A ...

Page 22

For more information about all Zarlink products visit our Web Site at www.zarlink.com ’ ’ “ ” ...

Related keywords