MM54240N - National Semiconductor Async Recv/ Xmit Remote Controller IC (DIP-24) AUD 32.0 Category : Other Electrical Equipment & Supplies Seller : semi-conductors(3379, 100.0%) | National Semiconductor MM54240N 24-Pin Microcontroller Integrated Circuit B8352 USD 19.99 Category : Other Electrical Equipment & Supplies Seller : laughingdog51(14433, 99.8%) |