The IIS Chip Gallery
Floh (1990)
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by
| Application | Cryptography |
| Technology | 1500 |
| Manufacturer | VLSI Tech |
| Type | Semester Thesis |
| Package | DIP64 |
| Dimensions | 6000μm x 3100μm |
| Gates | 3 kGE |
| Voltage | 5 V |
| Clock | 25 MHz |
Floh is an implementation of a new 64-bit Crypto Algprithm by Lai and Massey. It uses a protocol that is compatible to the Sun Microsystems SBus. The implementation is a processor architecture. The input data is read into a register file. Using two data busses, the data is transferred to functional units (multiplier, adder, XOR) and the results are copied back to the register using a third bus. The external communication is over a bi-directional 16bit interface.