3.3 VOLT TIME SLOT INTERCHANGE
DIGITAL SWITCH WITH RATE
MATCHING
IDT72V71623
2,048 x 2,048
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Direct microprocessor access to all internal memories
Memory block programming for quick setup
IEEE-1149.1 (JTAG) Test Port
FEATURES:
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Up to 16 serial input and output streams
Maximum 2,048 x 2,048 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
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
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Rate matching capability: Mux/Demux mode
Output Enable Indication pins provided by dedicated pins
Per-channel Variable Delay mode for low-latency applications
Per-channel Constant Delay mode for frame integrity applica-
tions
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DESCRIPTION:
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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
The IDT72V71623 has a maximum non-blocking switch capacity of
2,048x2,048channelswithdatarates at 2.048Mb/s,4.096Mb/s,8.192Mb/s
or16.384Mb/s. With16inputsand16outputs,avarietyofratecombinations
issupportedunderMux/Demuxmode, toallow forswitchingbetweenstreams
ofdifferentdatarates.
FUNCTIONAL BLOCK DIAGRAM
TRST
RESET
TMS TDI
TCK
ODE
Vcc GND
TDO
Test Port
TX0
RX0
TX1
Loopback
TX2
TX3
RX1
TX4
RX2
TX5
TX6
TX7
TX8
TX9
RX3
Output
MUX
RX4
TX10
TX11
TX12
TX13
TX14
TX15
OEI0
OEI1
OEI2
OEI3
OEI4
OEI5
OEI6
OEI7
OEI8
OEI9
OEI10
OEI11
OEI12
OEI13
OEI14
OEI15
Data Memory
RX5
RX6
Transmit
Serial Data
Streams
Receive
Serial Data
Streams
RX7
RX8
RX9
RX10
RX11
RX12
RX13
RX14
RX15
Connection
Memory
Internal
Registers
Timing Unit
Microprocessor Interface
5903 drw01
CLK F0i FE/ WFPS
DS
CS
A0-A13
D0-D15
DTA
R/W
HCLK
IDTandtheIDTlogoareregisteredtrademarksofIntegratedDeviceTechnology,Inc. TheST-BUS® isatrademarkofZarlinkSemiconductor,Inc..
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©
2005 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
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