GAL16V8D-20QPNI

Series:	GAL®16V8
Packaging:	Bulk
Part Status:	Obsolete
Programmable Type:	EE PLD
Delay Time tpd(1) Max:	20.0ns
Voltage Supply - Internal:	4.5 V ~ 5.5 V
Number of Macrocells:	8
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	20-DIP (0.300", 7.62mm)
Supplier Device Package:	20-PDIP
Base Part Number:	GAL16V8

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Introduction to GAL16V8D-20QPNI

The GAL16V8D-20QPNI is a Complex Programmable Logic Devices (CPLD) widely used in the embedded world. It has the ability to perform a wide range of digital tasks, depending on its design. Its features include fast in-system reprogrammability, good interconnect resources and fast operation, making it ideal for use in applications such as ASIC-emulation, digital-to-analog converters (DACs), analog-to-digital converters (ADCs) and interface circuits.

Application Field of GAL16V8D-20QPNI

The GAL16V8D-20QPNI CPLD is used in applications like ASIC-emulation, DACs, ADCs, and interface circuits. When used for ASIC-emulation, the CPLD is capable of quickly replicating the desired hardware function, including microprocessors, fast logic and analog blocks. When used for DACs and ADCs, the CPLD provides good operation, interconnect resources and low latency, meeting the requirements of these applications. Last but not least, as an interface circuit, the CPLD is used to connect components with different communication protocols, or to interface between various controllers.

Working Principle of GAL16V8D-20QPNI

The GAL16V8D-20QPNI CPLD is a logic-based device that uses a programmable logic array (PLA) to store the logic functions. The logic array contains a number of memory cells (called the macrocells) that can be programmed to perform a certain logic function. Each macrocell contains a 16-bit register, a 2-bit output register, and a selection field. The 16-bit register can store a 16-bit pattern, and the 2-bit output register is used to define the output type and control the level of the output signal. The selection field defines the macrocell as a combinational or memory cell.CPLDs can also have additional features such as latch registers and logic inverters, which can be used to add logic functions such as counters, timers, and state machines. All of these additional logic functions can be implemented by programming the macrocells to perform the required logic operation.The GAL16V8D-20QPNI CPLD also has a number of additional features such as voltage and thermal protection, a standby mode, and a test- and debug-mode. These features allow the CPLD to be used in a wide range of applications and make it an ideal choice for many embedded projects.

Conclusion

The GAL16V8D-20QPNI CPLD is a popular CPLD programming device used in a wide range of applications. Its features such as fast in-system reprogrammability, good interconnect resources and fast operation, place it as one of the most popular CPLDs used in the embedded world. Its applications include ASIC-emulation, DACs, ADCs and interface circuits, making it a good choice for many projects. The logic array of the CPLD is made up of macrocells, which are programmed to store logic functions. Additional features such as latch registers and logic inverters also provide additional functionality.

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