3.3 VOLT TIME SLOT INTERCHANGE
DIGITAL SWITCH
IDT72V73250
8,192 x 8,192
FEATURES:
DESCRIPTION:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
8K x 8K non-blocking switching at 32.768Mb/s
16 serial input and output streams
The IDT72V73250 has a non-blocking switch capacity of 8,192 x 8,192
channels at 32.768Mb/s. With 16 inputs and 16 outputs, programmable per
streamcontrol,andavarietyofoperatingmodestheIDT72V73250isdesigned
fortheTDMtimeslotinterchangefunctionineithervoiceordataapplications.
Some of the main features of the IDT72V73250 are LOW power 3.3 Volt
operation, automatic ST-BUS® /GCI sensing, memory block programming,
simplemicroprocessorinterface, JTAGTestAccessPort(TAP)andperstream
programmableinputoffsetdelay,variableorconstantthroughputmodes,output
enable and processor mode.
Accepts single-bit single-data streams at 32.768Mb/s
Per-channel Variable Delay Mode for low-latency applications
Per-channel Constant Delay Mode for frame integrity applications
Automatic identification of ST-BUS® and GCI bus interfaces
Automatic frame offset delay measurement
Per-stream single data frame delay offset programming
Per-channel high-impedance output control
Direct microprocessor access to all internal memories
Memory block programming for quick setup
IEEE-1149.1 (JTAG) Test Port
3.3V Power Supply
Available in 144-pin (20mm x 20mm) Thin Quad Flatpack (TQFP)
and 144-pin (13mm x 13mm) Plastic Ball Grid Array (PBGA)
Operating Temperature Range -40°C to +85°C
The IDT72V73250 is capable of switching up to 8,192 x 8,192 channels
withoutblocking.Designedtoswitch64Kbit/sPCMorNx64Kbit/sdata,the
devicemaintainsframeintegrityindataapplicationsandminimizesthroughput
delay for voice applications on a per-channel basis.
The16serialinputstreams(RX)oftheIDT72V73250arerunat32.768Mb/s
allowing512channelsper125μsframe.Thedataratesontheoutputstreams
(TX) are identicalto those on the input streams(RX).
•
FUNCTIONAL BLOCK DIAGRAM
RESET
VCC
GND
ODE
TX0
TX1
RX0
RX1
Data Memory
MUX
Receive
Serial Data
Streams
TX7
Transmit
Serial Data
Streams
TX8/OEI0
TX9/OEI1
Connection
Memory
Internal
Registers
TX15/OEI7
RX15
Microprocessor Interface
Timing Unit
JTAG Port
DS
CS
DTA
TRST
TMS TDI TCK TDO
C32i F32i FE
R/W
A0-A14
D0-D15
5933 drw01
IDTandtheIDTlogoareregisteredtrademarksofIntegratedDeviceTechnology,Inc. TheST-BUS® isatrademarkofMitelCorp.
JUNE 2004
1
© 2004 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
DSC-5933/10