How to interpret Vcc and GND on integrated circuits?
2015年12月25日 · You can indeed use a resistor to cause a voltage drop on the integrated circuit power line(s). Fact it's never done that way (at least not without clamping diodes, such as a reverse-biased Zener diode) because the resistor value depends on the current consumed by the IC, which varies and can vary a lot. Instead circuits are powered with a low ...
integrated circuit - How are OTP fuses in ICs implemented?
2019年9月2日 · One-time programmable (OTP) fuses are common in ICs. How are they typically implemented, on the silicon level? I know that they generally work like larger fuses, i.e. they can be blown but not repa...
integrated circuit - How are components with contacts under the …
2018年4月5日 · Consider an IC that looks like this, or similar: Note how the leads that are soldered to the board are on the underside of the IC. I am barely an electronics novice. My work with electronics is
integrated circuit - Why do ICs have NC (No Connection or No …
2015年10月11日 · The duplication is again done for the same reasons mentioned before. The pin removal between C and D is to increase safety by maximizing distance (creepage and clearance). This an SMPS controller with integrated main switch. Between its D pin and everything else you [periodically] have hundreds of volts of rectified mains voltage.
integrated circuit - What is the difference between a BIOS chip …
2019年1月15日 · From what I can gather, the BIOS chip is a loadable memory space that handles initial I/O, system checks and CAN configure certain things like power states and clock rates, before handing operation...
Standard nomenclature for component types - Electrical …
U Integrated circuit; V Vacuum Tube; VR Variable Resistor (potentiometer or rheostat) X Transducer not matching any other category; Y Crystal or oscillator; Z Zener Diode; Component name abbreviations widely used in industry: AE: aerial, antenna; B: battery; BR: bridge rectifier; C: capacitor; CRT:cathode ray tube; D or CR: diode; DSP:digital ...
integrated circuit - Do ICs have a shelf life? - Electrical Engineering ...
2017年4月13日 · An over looked type of special chips (or chip modules) that other people haven't listed are ones that have other "things" integrated inside of them, such as: 1) battery inside some battery-backed SRAMs, 2) crystals inside real-time clocks, 3) Opto-Isolators (not sure if they age over time on the shelf).
integrated circuit - What's up with the operating voltages 5 V, 3.3 …
Integrated circuits seem to have standard voltages of 5 V, 3.3 V, 2.5 V, 1.8 V, etc. Who decides these voltages? Why do smaller devices require lower voltages?
What are the freeware SPICE simulators available?
SPICE (Simulation Program with Integrated Circuit Emphasis) is a general-purpose, open source analog electronic circuit simulator. It is a powerful program that is used in integrated circuit and board-level design to check the integrity of circuit designs and to predict circuit behavior.
integrated circuit - How are ICs named? - Electrical Engineering …
2016年3月30日 · While American integrated circuits are named essentially randomly, the Soviet Union created a highly-structured and organized system. A numeric series indicates the manufacturing technology and type. Two letters in the part number indicate the function of the chip, such as a logic gate, counter, flip flop, or decoder.