An integrated circuit (IC) is an electronic circuit built onto a single plate of a semiconductor material, normally silicon. Modern ICs may contain billions of transistors and they have played a major part in the miniaturization and performance improvements of modern electronic systems.

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Is it possible to have a higher power GPU integrated into the motherboard? [migrated]

This is an idea ive been pondering for a bit in my spare time, but i have no hardware engineering knowledge to know if this is just crazy or if its a possibility. Is it possible to integrate a high ...
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2answers
43 views

Formula for identifying the 555 timer IC chip interval

Hi I am pursuing my hobby in electronics and I would like to learn more about IC chips. I have searched the internet for the most basic IC chip and the result is the 555 timer IC chip, I was wondering ...
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1answer
36 views

accelerometers vs gyroscopes

In terms of semiconductor integrated circuits, is there any difference between an accelerometer or a gyroscope? are they the same part? Can I get a IC recommendation for something with 3 axis?
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1answer
24 views

Charging small capacity battery

I have a questions regardin charging batteries. I have a Li-ion, 3.6V, 150 mAh battery and I am looking for a suitable charger. Unfortunately I was not able to find a compatible charger. The ones I ...
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1answer
89 views
+50

Raise input for a voltage monitor IC

I was looking over LTC2990, which is a voltage, current and temperature monitor. It is perfect for my project as I'm newbie. I want to build a power supply which will show on a display the voltage, ...
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1answer
32 views

Hooking up a HD74LS86 IC

So copying a little bit of what this guy showed on youtube, I tried to get my HD74LS86 ic. Here's what I tried to do: Edit: I forgot to draw a resistor between the led and ground. I put switches ...
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0answers
25 views

Quiz Buzzer circuit using IC 74LS373. Not resetting after cutting off supply

I am confronted with a buzzer circuit using a 74LS373 which is a 3 state octal D type transparent latch and edge triggered flip flop. This is my first ever attempt to use this type of IC. My search ...
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0answers
26 views

Integrating Extremely Thin Wires in Pages of a Notebook

I am trying to create a device that is able to connect with pages of a physical notebook. I was, therefore, considering the possibility of connecting each page with a common controller (something like ...
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2answers
45 views

What are some examples of MSI (Medium-Scale Integration) circuits that are used for doing arithmetic?

Just looking for some examples of MSI circuits used for doing arithmetic. I understand MSI circuits have more than 10 but less than 100 gates, or less than 500 components.
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31 views

What are the main benefits we lost from the diode being non-ideal? [closed]

I am trying to figure out the disadvantages/limitations caused by using real diodes (in other words, not being able to make ideal ones) in ICs and other electronic devices, other than maybe ...
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1answer
41 views

Allowable rise rates for logic families

The 74HC595 and the 4094B shift registers are quite comparable in their functionality. However, under the hood there are many differences in their specifications, e.g. the supply voltage range. I can ...
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1answer
78 views

What is this yellow “liquid” on the graphic card? [closed]

Currently I've been assigned the task to try to fix a laptop. The problem was a malfunctioning graphic card. It has no image what-so-ever. I've looked all over the circuit and found no burn marks ...
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3answers
130 views

How Can A Coded Firmware Control Hardware [on hold]

I really want to know how could a virtual coded program really affect and imitate and animate a piece of hardware. I Have Always Seen The Diagram Of Processors In the Book Showing ALU and CPU as The ...
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2answers
49 views

How can I find out basic information about what an IC does, if it isn't clear by context and google doesn't reveal anything useful?

For example, I found a Sony CXM4015R. When googling I couldn't find any information or datasheets on it, but at least I would like to know its basic function. The only (unreliable) hint I found was ...
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1answer
31 views

PWM generation with AVR

What is the best way to generate 5 PWM signals in range of 10 KHz with AVR ATMega16? I am thinking about a few possibilities: 1- Does AVR generate any PWM signal automatically on any of it ports? (I ...
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0answers
48 views

Function of enclosed digital circuit

I have a digital circuit which scheme is on the enclosed picture. This circuit is a part of a card which is connected to a microcontroller. Through inputs BD0-BD7 is written one byte into the D-latch ...
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3answers
139 views

What is that? chip identification

What is that? No HD-SDI signal. Black magic camera motherboard
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1answer
60 views

What is the circuit size and/or circuit depth complexity of an op-amp?

What is the circuit size complexity and / or circuit depth complexity of an op-amp? This is for comparative purposes, so I'm really after a ballpark figure and any op-amp is fine (although the ...
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2answers
36 views

How to find out the heated IC's or CMOS in a circuit automatically.

How to find out the heated IC's or CMOS in a circuit automatically. Because its very hard to find the heated IC's by touching each and everything. ca anyone suggest me any method to find it out?
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2answers
53 views

TTL to CMOS Different Supply voltages

I am designing a circuit using a CD4011 Nand Gate 5 volt Vcc and a CD4555 using a 15 volt vcc. Will the Nand gate High output have enough voltage to drive the input of the CD4555 to a High Output? ...
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1answer
39 views

How much power can a 74HC4066 switch (for LEDs)

I am using a 74HC4066 IC to switch on and off strings of LED. If I read the documentation correctly, each 'switch' in the IC can handle 25 ma. Is this correct? Also, does this mean that the entire ...
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0answers
77 views

What is the type of this IC?

This is the internal structure of an IC. The only information that I have is the use to control the temperature of soldering iron via a triac. Pinout also is missed. Fist thought is the TL494 but ...
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1answer
23 views

Combining CMOS and TTL logic

I have a bunch of 74LS383 (TTL octal transparent latch with three-state outputs) and MM74C83N (CMOS 4-bit binary full adder) that I would like to connect together. I need to connect the output of the ...
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17 views

Simulation of ic1 Bel 1895 in LT spice

I am doing an electronics project on condenser mic audio amplifier. And for this I want to first simulate the circuit in lt spice.But I am not getting how to simulate ic1 bel 1895 on lt spice? Can ...
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1answer
18 views

How input and output multiplexers work in ADV7800?

I was going through IC ADV7800 datasheet, getting confused with the functionality of two multiplexers given in its block diagram. Attaching picture of the same. For first MUX there is 12 inputs and ...
2
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1answer
67 views

LM2907 schematic critique

I have been working with the LM2907 as I have been designing a few circuits around it. This has lead to me wanting to understand more of its inner workings and build up a breadboard model of the ...
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3answers
319 views

what is quadruple in IC gates

What is quadruple in integrated circuit gates? Is it just about 4 gates inside the IC or anything else more special?
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1answer
102 views

Needing help with chip identification: Hard mode

I'm decently skilled with basic ic identification methods and lot number cross reference identification for the rebadged chips, but I've ran into a chip I just cannot identify. On the same board there ...
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1answer
34 views

Help Identifying Touch Controller Chip

My oven started displaying an error code E11 that indicates a "shorted key". These chips are on the back of the oven touch panel. They don't seem to be the Atmel chips. The marking on the SOT23-6 ...
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1answer
68 views

comparator problem

where is the mistake in my circuit? i attempted to create simple continuity tester, image really explains it pretty much. IC - ne5532p PS: i know reference voltages on two op amp (+) terminals are ...
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1answer
83 views

How can I fix this ESC circuit?

What happened: Two of the blue wires touched while an 11.1v battery was hooked up and POP What's in the photo: Yellow is the heat shrink wrapper I cut open the material with square impressions on ...
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2answers
72 views

MCP3008 alternative

I have some analog devices like LDR, temperature sensors, and other sensors and I want to use the readings of these sensors in my raspberry pi B+ , for that I need an ADC , to convert the analog ...
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1answer
73 views

Question about MCU's, and Audio Manipulation

Ok, so I've been doing some research trying to find something like an audio MCU\DSP with a built in audio filter; for instance, something that I could manipulate audio with to get a final filtered ...
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1answer
112 views

How to step down 12v to 5v efficiently

So, I have a wall-wart power supply giving regulated 12v 500mA to a 2.1mm Jack. I'm using this to power a 12v 160mA fan, and an Arduino Pro Mini (at 5V). I understand that the Mini's regulators to ...
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1answer
33 views

Modifying a Boss DS-1 Distortion pedal, possible lifted pads

My apologies if this is in the wrong place, seems like the people on this section would know what to do in this situation. I am brand new to circuit bending and electronics work in general, really ...
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3answers
93 views

Working with a tiny IC

I have recently purchased several Atmel's touch sensor IC's AT42QT1010 which are extremely tiny (1.6mm x 2.9mm) and I would like to be able to mount them on a breadboard. I have tried soldering them ...
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1answer
56 views

IC for Trickle Charging vs. Fast Charging a NiMH rechargeable battery using solar and wall charger?

I want to use a solar panel to extend the use time of 3 NiMH AA's in series to power a microcontroller. The solar panel is rated at 1 W with a max load voltage of 6.4 V and the product page is here. ...
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57 views

Reverse engineering MOSFET power circuit

I'm looking at a portable heater circuit that uses a 1.4 Ohm resistive load as the heating element. The circuit in question uses an N-channel dual output mosfet, and on the other side of the board a ...
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1answer
71 views

static Hazard and challenging questions

i read some notes that wrote: for following Function F, has static Hazard, if B=C=D=1, and for each change in value of A, the Static Hazard 1 can be. Why this statement is True?
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0answers
23 views

Development environment for csr8670

I am trying to develop firmware for csr8670 chip, have searched a lot, found only BlueLab to use as development environment but it is not useful for me. If anyone here may have experience with csr8670 ...
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1answer
22 views

battery monitor circuit modification

A 12V battery monitor circuit is available on this page. What can be done to modify that circuit to alarm when voltage goes below 15V ? ...
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1answer
105 views

Why inductors can not be integrated into IC? [duplicate]

If passive components like resistor and capacitor can be integrated into an IC, why not inductor?
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1answer
37 views

Easy circuit for “nested” triggering

I need a trigger circuit that gives several high pulses for an "out_0". After 5-6 pulses from out_0, it then gives one high pulse for an "out_1". I don't need any circuit that's large or has high ...
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0answers
61 views

how to redesign the circuit to drive a 230V 100W lamp for 5 minutes

I have a circuit , the circuit operates with a siren using a 9v battery the siren used is UM3561 i want to replace the alarm part of the circuit using a RELAy that can drive a 100W 230V lamp for 5 ...
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1answer
76 views

Li-Ion charging ic with 5V input and battery voltage between 3.9V and 3.6V [closed]

I am currently in search for a battery charging ic that has a variable output voltage (so that I can set it to 3.6V to 3.9V) or a fixed range, similar to what I would like to have. But why would I ...
14
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4answers
2k views

Are solder bridges on chips always bad?

I just bought my Arduino Ethernet shield – a knock-off one for $10 instead of $60. I connected it up, but it doesn’t work – LEDs light up but do not blink, and no ethernet link is established ...
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1answer
84 views

Unpowered MAX232 - input 'leaking' into Vcc

My PC is connected to a MAX232 through a USB-to-serial cable. When everything is powered, there are no issues. However, when I turn off the power, the MAX232's \$V_{cc}\$ has a voltage of -0.5 V ...
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1answer
105 views

HX711 amplifier

I have one of the HX711 ADC devices that I want to use for a weighing application. I've fitted it to a breadboard and used demo firmware to poll the chip for readings. The behaviour is as follows: The ...
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1answer
55 views

Identify flash IC by ID

I read flash device ID as following: Manufacturer: c8 Device: 4013 Is this enough information in order to uniquely identify the IC? Is there some web repository ...
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1answer
69 views

Attempting to use ATMEGA on its own

Short Version: I've wired up an ATMEGA328 chip standalone, after programming with arduino. By itself, the chip is not functioning properly, but when the arduino (with exact same chip) is wired in, it ...