Features: High-speed 16-bit bus exchange for interbus communication in thefollowing environments:• Multi-way interleaving memory• Multiplexed address and data buses Direct interface to R3051 family RISChipSet™• R3051™ family of integrated RISController™ CPUs...
IDT73720: Features: High-speed 16-bit bus exchange for interbus communication in thefollowing environments:• Multi-way interleaving memory• Multiplexed address and data buses Direct interface to ...
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Symbol |
Description |
Max
|
Unit |
PT |
Power Dissipation |
1 |
V |
VTERM |
Terminal Voltage with Respect to GND |
VCC + 0.5 |
V |
VTER(2) |
Operating Temperature |
0.5 to +7 |
° C |
TBIAS |
Temperature Under Bias |
55 to +125 |
° C |
TSTG |
Storage Temperature |
55 to +125
|
°C |
IOUT |
DC Output Current |
50
|
mA |
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 buses.
The Bus Exchanger is responsible for interfacing between the CPU A/ D bus (CPU address/data bus) and multiple memory data buses.
The IDT73720 uses a three bus architecture (X, Y, Z), with control signals suitable for simple transfer between the CPU bus (X) and either memory bus Y or Z). The Bus Exchanger features independent read and write latches for each memory bus, thus supporting a variety of memory strategies. All three ports support byte enable to independently enable upper and lower bytes.