IDT72V70190 Datasheet, PDF (1/20 Pages) Integrated Device Technology – 3.3 VOLT TIME SLOT INTERCHANGE DIGITAL SWITCH 256 x 256

3.3 VOLT TIME SLOT INTERCHANGE
DIGITAL SWITCH
256 x 256
IDT72V70190
FEATURES:
• 256 x 256 channel non-blocking switching at 2.048 Mb/s
• Per-channel variable or constant throughput delay
• Automatic identification of ST-BUS^®/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
FUNCTIONAL BLOCK DIAGRAM
64-pin Small Thin Quad Flatpack (STQFP)
•· 3.3V Power Supply
• Operating Temperature Range -40°C to +85°C
• 3.3V I/O with 5V Tolerant Inputs
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.
VCC GND RESET
ODE
RX0
RX1
RX2
RX3
Receive
Serial Data
RX4
Streams
RX5
RX6
RX7
Loopback
Data Memory
Internal
Registers
TX0
Output
MUX
TX1
TX2
Transmit
Serial Data
TX3
Streams
TX4
TX5
Connection
Memory
TX6
TX7
Timing Unit
Microprocessor Interface
CLK F0i FE IC
AS/ IM DS/ CS R/W/ A0-A7 DTA D8-D15/ CCO
ALE
RD
WR
AD0-AD7
5717 drw01
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. The ST-BUS^ is a trademark of Mitel Corp.
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 2003 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.
MARCH 2003
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