DESCRIPTION:

The IDT72V71643 has a maximum non-blocking switch capacity of 4,096 x 4,096 channels with data rates at 2.048 Mb/s, 4.096 Mb/s, 8.192 Mb/s or 16.384 Mb/s. With 32 inputs and 32 outputs, a variety of rate combinations is supported, under either Mux/Demux mode or Split mode, to allow for switching between streams of different data rates.

Output enable indications are provided through optional pins (one pin per output stream, only 16 output streams can be used in this mode) to facilitate external data bus control.

For applications requiring 32 streams and 32 per-stream Output Enable indicators, there is also an All Output Enable Feature.

FEATURES:

• 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

• Rate matching capability: Mux/Demux mode and Split mode

• Output Enable Indication Pins

• 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 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 TX streams

• Direct microprocessor access to all internal memories

• Memory block programming for quick setup

• IEEE-1149.1 (JTAG) Test Port

• 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