In a pay for placement database search system, in which advertisers pay to include their search listings in a database to be provided with search results in response to queries from searchers, each advertiser decides how much money he wants to spend on a search term. The circuits in the programmable logic portion and the embedded processor portion can access data signals from and send data signals to the same IO pins. The transistor element has an active layer formed on the substrate and three electrodes disposed on the active layer.