DESCRIPTION:
The IDT73720/A Bus Exchanger is a high speed 16-bit bus exchange device intended for inter-bus communication in interleaved memory systems and high performance multiplexed address and data busses.
   
FEATURES:
• High-speed 16-bit bus exchange for interbus communication
    in the following environments:
    — Multi-way interleaving memory
    — Multiplexed address and data busses
• Direct interface to R3051 family RISChipSet
    — R3051™ family of integrated RISController CPUs
    — R3721 DRAM controller
• Data path for read and write operations
• Low noise 12mA TTL level outputs
• Bidirectional 3-bus architecture: X, Y, Z
    — One CPU bus: X
    — Two (interleaved or banked) memory busses:Y & Z
    — Each bus can be independently latched
• Byte control on all three busses
• Source terminated outputs for low noise and undershoot
    control
• 68-pin PLCC and 80-pin PQFP package
• High-performance CMOS technology.