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Simple programmable logic device (SPLD) chips are the simplest, smallest and least-expensive type of programmable logic device (PLD). SPLD chips can be used in boards to replace 7400-series transistor-transistor logic (TTL) components. They are also used in a variety of commercial, industrial, and communication applications. SPLD chips typically consist of 4 to 22 fully connected macrocells that use some form of combinatorial logic such as AND and OR gates) and a flip-flop. In other words, a small Boolean logic equation can be built within each macrocell. This equation combines the state of some number of binary inputs into a binary output and, if necessary, stores that output in the flip-flop until the next clock edge. Although the particulars of the available logic gates and flip-flops are specific to each manufacturer and product family, the general idea remains the same.

Most SPLD chips use fuses or non-volatile memory cells such as erasable programmable read-only memory (EPROM), electrically erasable read-only memory, or Flash memory. Simple programmable logic devices (SPLDs) are known by a variety of names, programmable array logic (PAL), generic array logic (GAL), programmable logic arrays (PLA), field-programmable logic arrays (FPLA), and programmable devices (PLD).


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Engineering Web: Simple Programmable Logic Devices (SPLD)
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spld
... SPLD - Simple Programmable Logic Devices    Lecture slaids (PowerPoint) Read Only Memory ( ROM) * Mask programmable ROM - Read Only Memory. * PROM - Programmable Read Only Memory. * Erasable ...
ZX81 in Four SPLD chips
For a start, the programs to turn logic equations into files for programming PLDs is relatively simple, and one can download them for free. The Xilinx chips are bigger and their function is usually ...
Programmable Logic SMD098 Computation Structures - Programmable Logic 1 Simple ...
Programmable Logic. SMD098 Computation Structures - Programmable Logic. 1. Simple Programmable Logic Devices. Programmable Array Logic (PAL). AND-OR arrays are common blocks in SPLD and CPLD ...
E2CMOS PLD device,ispGAL22LV10-7LJ
Electronic Components, Power & Connectors. ». Semiconductors & Optoelectronics. ». Logic. ». Programmable Logic. ». Simple Programmable Logic Devices (SPLD). ». Simple Programmable Logic Devices (SPLD ...
Atmel Products - Programmable Logic - SPLD/CPLD
SPLD/CPLD. LOGIC DOUBLING™? SEE FOR YOURSELF!. Atmel's EPLD product line comprises of two major categories: Simple and the higher density Complex Programmable Logic Devices (SPLDs and CPLDs).. ...
See Atmel Corporation Profile & Catalog
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