Raha tsy voatanisa ny toerana misy anao dia safidio ny iray amin'ireto manaraka ireto:
STMicroelectronics
IC PARITY GENERATOR 9BIT 14SOIC.
Texas Instruments
IC MULTIPLIER-DIVIDER TO-100-10.
IC 9-BIT GEN/CHKER 14SO.
IC 9-BIT GEN/CHKER 14SOIC.