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SCAN921025 Datasheet

30-80 Mhz 10-bit Bus Lvds Serializer And Deserializer

Manufacturer: National Semiconductor (now Texas Instruments)

SCAN921025 Overview

The SCAN921025 transforms a 10-bit wide parallel LVCMOS/LVTTL data bus into a single high speed Bus LVDS serial data stream with embedded clock. The SCAN921226 receives the Bus LVDS serial data stream and transforms it back into a 10-bit wide parallel data bus and recovers parallel clock. Both devices are pliant with IEEE 1149.1 Standard for Boundary Scan Test.

SCAN921025 Key Features

  • IEEE 1149.1 (JTAG) pliant and At-Speed BIST test
  • Clock recovery from PLL lock to random data patterns
  • Guaranteed transition every data transfer cycle
  • Chipset (Tx + Rx) power consumption < 600 mW (typ) @
  • Single differential pair eliminates multi-channel skew
  • 800 Mbps serial Bus LVDS data rate (at 80 MHz clock)
  • 10-bit parallel interface for 1 byte data plus 2 control bits
  • Synchronization mode and LOCK indicator
  • Programmable edge trigger on clock
  • High impedance on receiver inputs when power is off

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