Core Tips of Electronic Enthusiasts Network : This article mainly introduces the advantages and disadvantages of the general array logic GAL.
1. Advantages of GAL devices
GAL is a PLD with higher performance after PAL. Compared with PAL, it has the following advantages:
(1) It has high versatility and flexibility: each of its logical macrocells can be arbitrarily configured as needed, enabling both combined circuits and sequential circuits.
(2) High utilization: GAL uses electrically erasable CMOS technology, which can be erased with voltage signals and reprogrammed. Therefore, it can be used repeatedly.
(3) High-performance E2COMS process: The GAL's high speed, low power consumption, programming data can be stored for more than 20 years.
2. Disadvantages of GAL devices
(1) The clock must be shared;
(2) The product term of or is at most 8;
(3) The size of the GAL device is small, failing to meet the requirements of integrating a digital system in a single chip;
(4) Although the GAL device has the function of encryption, with the development of the decryption technology, it is not a problem to decrypt the programmable logic device with such a small array size.
Note : These shortcomings have been overcome after the emergence of high-density programmable logic devices such as EPLDs and FPGAs.
- Electronic enthusiast network finishing, please indicate the source! ! !
A drone, from parts to perfect machine, we need to carefully install, adjust and test. We need some small tools to help us get it done. They are some screws, Tape, silicone wire, DuPont wire, 3M tape, transformer, switchboard and more. They make the whole process easier, faster and more beautiful. These can be found from us, and perhaps help you find the products you need.
Tool,Tape,Battery Strap,Lace,Silicone Line,Screw,3M
shenzhen GC Electronics Co.,Ltd. , https://www.jmrdrone.com