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.
Memory Chips: Learn more

Product Name Notes
Bipolar PROM 512 -- HL0512 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.
16-Bit Memory -- 5481/C,A
16-Bit Scratch Pad Memory Cell -- 5484/E,F
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...
16 x 5 FIFO -- 54S225/R
256-Bit TTL RAM (256x1) -- 54S301/E,F
64-Bit Random Access Memory (3-State) -- 54S189/E,F
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.
16K-Bit TTL Bipolar PROM -- 82S191/J,K
16K-Bit TTL Bipolar PROM -- 82S191A/J,K
1K-Bit TTL Bipolar PROM, 3-State -- 82S129A/E,F
1K-Bit TTL Bipolar PROM, Open Collector -- 82S126A/E,F
2304-Bit TTL Bipolar RAM -- 82S212/W
256-Bit TTL Bipolar PROM -- 82S123A/E,F
256-Bit TTL Bipolar PROM Open Collector -- 82S23/E,F
256-Bit TTL Bipolar RAM -- 82LS16/E,F
256-Bit TTL Bipolar RAM -- 82S16/E,F
2K-Bit Bipolar PROM -- 82LS135/R
2K-Bit Bipolar PROM -- 82S135/R
2K-Bit Bipolar PROM, 3-State -- 82S131A/E,F
2K-Bit Bipolar PROM, Open Collector -- 82S130A/E,F
32K-Bit TTL Bipolar PROM -- 82HS321B/J,K
4K-Bit TTL Bipolar PROM -- 82S137A/V
4K-Bit TTL Bipolar PROM -- 82S141/J,K
4K-Bit TTL Bipolar PROM -- 82S141/J,K
4K-Bit TTL Bipolar PROM -- 82S141A/J,K
4K-Bit TTL Bipolar PROM -- 82S147/R
576-Bit TTL Bipolar RAM -- 82S09/Y
64 x 9 TTL Bipolar PROM -- 82S19/Y
64-Bit (16x4) Bipolar Scratch Pad Memory -- 82S25/E,F
8K-Bit TTL Bipolar PROM -- 82LS181/J
8K-Bit TTL Bipolar PROM -- 82S181A/J,K
8K-Bit TTL Bipolar PROM -- 82S185A/V
The 82S00 and 82LS00 series product lines consist of Schottky TTL products and Bipolar Memory products.
64-Bit FIFO Buffer Memory (16 x 4) -- 9403/L The following LSI parts were originally supported by Signetics.
256-Bit TTL RAM (256x1) -- 54LS301/E,F 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.
2048-Bit RAM -- 8X350/W
FIFO RAM Controller -- 8X60/Y
These integrated circuits, which were originally manufactured by Signetics, fall under the broad category of Bipolar LSI.
16 Bit Scratch Pad Memory Cell -- 4304/C,A
16 Bit Scratch Pad Memory Cell -- 4305/C,A
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...