3.3 VOLT TIME SLOT INTERCHANGE
DIGITAL SWITCH WITH RATE
MATCHING
IDT72V71643
4,096 x 4,096
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Internal Loopback for testing
Available in 144-pin Thin Quad Flatpack (TQFP) and
144-pin Ball Grid Array (BGA) packages
Operating Temperature Range -40°C to +85°C
3.3V I/O with 5V tolerant inputs and TTL compatible outputs
FEATURES:
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Up to 32 serial input and output streams
Maximum 4,096 x 4,096 channel non-blocking switching
Accepts data streams at 2.048 Mb/s, 4.096 Mb/s, 8.192 Mb/s or
16.384 Mb/s
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Rate matching capability: Mux/Demux mode and Split mode
Output Enable Indication Pins
Per-channel Variable Delay mode for low-latency applications
DESCRIPTION:
The IDT72V71643 has a maximum non-blocking switch capacity of
Per-channel Constant Delay mode for frame integrity applications 4,096x4,096channelswithdatarates at 2.048Mb/s,4.096Mb/s,8.192Mb/s
Automatic identification of ST-BUS® and GCI serial streams
Automatic frame offset delay measurement
Per-stream frame delay offset programming
Per-channel high-impedance output control
Per-channel Processor mode to allow microprocessor writes to
TXstreams
or16.384Mb/s. With32inputsand32outputs,avarietyofratecombinations
is supported, under either Mux/Demux mode or Split mode, to allow for
switchingbetweenstreamsofdifferentdatarates.
Outputenableindicationsareprovidedthroughoptionalpins(onepinper
outputstream, only16outputstreams canbe usedinthis mode)tofacilitate
externaldatabuscontrol.
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Direct microprocessor access to all internal memories
Memory block programming for quick setup
IEEE-1149.1 (JTAG) Test Port
For applications requiring 32 streams and 32 per-stream Output Enable
indicators,thereisalsoanAllOutputEnableFeature.
FUNCTIONAL BLOCK DIAGRAM
TRST
Vcc GND
TMS TDI
TDO TCK
ODE
RESET
Test Port
RX0
TX0
RX1
TX1
Loopback
RX2
RX3
TX2
TX3
RX4
TX4
RX5
TX5
RX6
TX6
RX7
RX8
TX7
Output
MUX
TX8
TX9
RX9
RX10
RX11
RX12
RX13
RX14
RX15
RX16
RX17
RX18
RX19
RX20
RX21
RX22
RX23
RX24
RX25
RX26
RX27
RX28
RX29
RX30
RX31
TX10
TX11
TX12
Data Memory
TX13
TX14
Transmit
Serial Data
Streams
Receive
Serial Data
Streams
TX15
TX16/OEI0
TX17/OEI1
TX18/OEI2
TX19/OEI3
TX20/OEI4
TX21/OEI5
TX22/OEI6
TX23/OEI7
TX24/OEI8
TX25/OEI9
TX26/OEI10
TX27/OEI11
TX28/OEI12
TX29/OEI13
TX30/OEI14
TX31/OEI15
Connection
Memory
Internal
Registers
Timing Unit
Microprocessor Interface
5902 drw01
CLK
FE/ WFPS
HCLK
R/W A0-A14
D0-D15
F0i
DS
CS
DTA
IDTandtheIDTlogoareregisteredtrademarksofIntegratedDeviceTechnology,Inc. TheST-BUS® isatrademarkofMitelCorp.
MAY 2002
1
2002 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
DSC-5902/6