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The latch-up does not have to happen between the power rails - it can happen at any place where the required parasitic structure exists. A common cause of latch-up is a positive or negative voltage spike on an input or output pin of a digital chip that exceeds the rail voltage by more than a diode drop.
Safe-operating area: This is a thermal dissipation and "latch-up" consideration. Thermal resistance : This is an often ignored but extremely important parameter from the point of view of practical design; a semiconductor does not perform well at elevated temperature, and yet due to large current conduction, a power semiconductor device ...
Q = 1 (1, 0) – referred to as an S (dominated)-latch; Q = 0 (0, 1) – referred to as an R (dominated)-latch; This is done in nearly every programmable logic controller. Hold state (0, 0) – referred to as an E-latch; Alternatively, the restricted combination can be made to toggle the output. The result is the JK latch.
Most manufacturers design to prevent latch-up and test their products to ensure that latch-up does not occur from atmospheric particle strikes. In order to prevent latch-up in space, epitaxial substrates, silicon on insulator (SOI) or silicon on sapphire (SOS) are often used to further reduce or eliminate the susceptibility.
Non-latch-up IGBT operation was ensured, for the first time, for the entire device operation range. [22] In this sense, the non-latch-up IGBT proposed by Hans W. Becke and Carl F. Wheatley was realized by A. Nakagawa et al. in 1984. Products of non-latch-up IGBTs were first commercialized by Toshiba in 1985. This was the real birth of the ...
Another extension to the series is the 7416xxx variant, representing mostly the 16-bit-wide counterpart of otherwise 8-bit-wide "base" chips with the same three ending digits. Thus e.g. a "7416373" would be the 16-bit-wide equivalent of a "74373".
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The Am29900 family are bus interface chips. Am29921 10-Bit D-Type Flip-Flop; Am29923 9-Bit D-Type Flip-Flop; Am29925 Octal D-Type Latch - 3-AND Out EN; Am29927 Non-Inverting-Function Buffer Gate; Am29928 Inverting-Function Buffer Gate; Am29933 Bus Transceiver - +9-bit parity tree; Am29941 10-Bit D-Type Latch; Am29943 9-Bit D-Type Latch; Am29945 ...