摘要:
A gate array circuit comprising a row of consecutively arranged n -channel transistors and an adjacent row of p -channel transistors. Both rows are composed of at least three subrows with two subrows of narrow transistors and one subrow of wide transistors, of which the channel width is at least three times the width of the narrow transistors. The gate electrodes are common to the three subrows. Preferably, the wide subrow is arranged centrally between the narrow subrows. This construction affords the advantage of a very high density and a very high flexibility in designing the functions to be realized.
摘要:
The multiplex circuit inludes a cascade connection of flip-flop elements (118,120,122) for producing a high data-rate multiplexsignal. In order to avoid disturbances caused by parallel loading the flip-flop circuits, the slave-section (130) of the flip-flop generating the multiplexsignal is not parallel loaded, which results in a continuous outputsignal. This way of loading requires a specific flip-flop circuit as shown in the description.
摘要:
A master slice semiconductor circuit comprising ROM memory cells which consist of NMOS-transistors as well as PMOS-transistors. In order to increase the integration density on the master slice, the NMOS-transistors and the PMOS-transistors (memory cells) in one and the same row are controlled via one and the same word line. The circuit comprises row selection means, for example an exclusive-OR circuit for each row, for selecting either a single row of NMOS cells or a single row of PMOS cells.
摘要:
The transfer gate between the master section and the slave section in a flip-flop circuit comprises means for reducing the sensitivity to slow clock edges and clock skew.
摘要:
The invention relates to a memory device of the charge-coupled shift register type which is subdivided into four sections each of which has a storage capacity of, for example 208,800 bits and which can operate in different modes: parallel-in/parallel-out (as background video memory); 2x2 parallel-in, demultiplex/multiplex mode, for example for 100 Hz TV; scan mode; parallel-in-recirculation mode; "shortened" memory, for example for 525-line system, etcetera. Control is realized via a decoding and timing block in which a multi-bit control word is serially input and decoded. In a scan mode (for example, as a teletext memory), the memory sections are scanned one-by-one under the control of a separate scan register in which a scan bit (logic 1) is step-wise shifted until all sections have been read. Via a data output, the scan bit is transferred, for example to the scan register of a further memory device (via its serial data input) which is connected in series with the former memory device.