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IDT72V70190TF Datasheet

  • IDT72V70190TF

  • TIME-SLOT ASSIGNER|QFP|64PIN|PLASTIC

  • 123.64KB

  • 20頁(yè)

  • ETC

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3.3 VOLT TIME SLOT INTERCHANGE
DIGITAL SWITCH
256 x 256
.EATURES:
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IDT72V70190
256 x 256 channel non-blocking switching at 2.048 Mb/s
Per-channel variable or constant throughput delay
Automatic identification of ST-BUS
廬
/GCI interfaces
Accept 8 serial data streams of 2.048 Mb/s
Automatic frame offset delay measurement
Per-stream frame delay offset programming
Per-channel high impedance output control
Per-channel Processor Mode
Control interface compatible to Intel/Motorola CPUs
Connection memory block programming
Available in 64-pin Thin Plastic Quad Flatpack (TQFP) and
64-pin Small Thin Quad Flatpack (STQFP)
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路
3.3V Power Supply
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Operating Temperature Range -40擄C to +85擄C
擄
擄
DESCRIPTION:
The IDT72V70190 is a non-blocking digital switch that has a capacity of
256 x 256 channels at 2.048 Mb/s. Some of the main features are: program-
mable stream and channel control, Processor Mode, input offset delay and high-
impedance output control.
Per-stream input delay control is provided for managing large multi-chip
switches that transport both voice channel and concatenated data channels. In
addition, input streams can be individually calibrated for input frame offset.
.UNCTIONAL BLOCK DIAGRAM
V
CC
GND
RESET
ODE
Loopback
RX0
RX1
RX2
RX3
RX4
RX5
RX6
RX7
TX0
Receive
Serial Data
Streams
Data Memory
Output
MUX
Transmit
Serial Data
Streams
Connection
Memory
TX1
TX2
TX3
TX4
TX5
Internal
Registers
TX6
TX7
Timing Unit
Microprocessor Interface
CLK
F0i
FE
IC
AS/ IM DS/
RD
ALE
CS
R/W/ A0-A7
DTA
D8-D15/
WR
AD0-AD7
CCO
5717 drw01
IDT, the IDT logo are registered trademarks of Integrated Device Technology, Inc.
AUGUST 2001
1
DSC-5717/3
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2001
Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.

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