Lansdale Semiconductor, Inc. Datasheets for Memory Chips

Memory chips are internal storage areas in computers. Although the term "memory chip" commonly refers to a computer's random access memory (RAM), this product area includes many different types of electronic data storage. Computer memory stores data electronically in cells. Without memory chips, a computer could not read programs or retain data.
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Product Name Notes
The 0512 bipolar PROM integrated circuit was designed for both military and commercial applications. It has a 140 ns access time, is fully decoded and is DTL and TTL compatible.
The 5400/7400 series of transistor-transistor logic is a medium-speed, high-noise-immunity family of saturating integrated logic circuits designed for general digital logic applications requiring clock frequencies to 30MHz and switching speeds...
The 54S00/74S00 series of product is fabricated with a non-saturating Schottky clamped transistor technique. This family of TTL product consists of very high performance and high power devices.
The 82S00 and 82LS00 series product lines consist of Schottky TTL products and Bipolar Memory products.
The following LSI parts were originally supported by Signetics.
The Series 54LS/74LS Schottky TTL family features both Schottky-barrier-diode inputs and emitter inputs and utilizes full Schottky-barrier-diode clamping to achieve speeds comparable to Series 54/74 at one-fifth of the power.
These integrated circuits, which were originally manufactured by Signetics, fall under the broad category of Bipolar LSI.
These TTL integrated circuits provide complex functions designed for digital applications in the medium to high-speed range. They provide significant reduction in package count and increased logic per function over...