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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(w+x)-(y+z) operation with half adder and half subtractor

I can't seem to solve this problem. Already, I'm little confused because of using half adder and half subtractor. I have tried to draw then stuck. How can I make the operation by half adder and half ...
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1answer
64 views

Will one pic programmer program all pic chips? [on hold]

If yes which one and where could i buy it and is there an inexpensive programmer for the chips?
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241 views

Designing an 8 x 3 memory chip given 2 4 x 3 chips

I'm working on a problem that asks me to design an 8 x 3 memory chip given 2 4 x 3 memory chips. I'm not sure how to approach this problem. I've looked at the textbook and found various online ...
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1answer
38 views

Powering ATtiny85 for temperature sensing

I have been working on a miniature temperature sensing module which buzzes once the temperature crosses a threshold using ATtiny85, lm35 and a pico buzzer. When I power the whole circuit using an ...
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1answer
52 views

how to program the smd atmega328

How do you program the smd atmega328 ic in an inexpensive way?I know you can get a factory to program the chips but is there a way to program them with arduino without one of those expensive sockets. ...
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2answers
468 views

What does it mean when components in schematics do not connect?

I'm fairly new to the whole Arduino world, and I'm just really curious about this schematic that I came across... I can read the basics of a schematic, but this one has me puzzled. What are the ...
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0answers
19 views

Signal conditioning/processing IC [closed]

Is there any integrated circuit that converts signal from a range of 0 to 12V, to 0-5V? I want to condition the signal from a sensor which varies from 0 to 12 V to a range from 0 to 5 V to be read by ...
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1answer
77 views

Difference Between LM386 and LM741 [closed]

What is the Difference Between the Normal Opamp LM741 and the Audio Power amplifier LM386.. I mean in both the circuit we use the concept of voltage compensation, then how come LM386 is called power ...
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2answers
84 views

How to make a stopwatch timer [closed]

I want to make a simple stopwatch timer using simple materials such as a breadboard, a couple of IC's (integrated circuits), wires, resistors, capacitors and transistors. Is it possible without doing ...
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2answers
45 views

Detecting HI-Z state of charge controller

I have been building a Li-Ion charge controller with MCP73831. The STAT pin has 3 states as shown below: The circuit I come up so far is this: Is there a way to detect the HI-Z state with ...
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0answers
26 views

Problems with L293D [migrated]

The motor are not rotating in the above circuit . Or rather the Voltage between the two Motor Terminal is zero. I have checked the Pin 10 & 11 and Pin 12 & 13. They are fine and produces ...
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2answers
55 views

Op Amp saturating below supply voltage?

I would like to know why op-amps saturate below their supply voltage. For instance I have a circuit with an LM358-N amplifier IC that is powered at +5 [V] and connected to ground on the other rail. ...
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1answer
38 views

Ambient temperature vs operating temperature?

I would like to know the difference between Ambient temperature vs operating temperature? In datasheets they specify operating temperature for IC's. ex -25°C to +125°C, so does this mean even though ...
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2answers
45 views

Designing a MOSFET current mirror circuit

This is the design problem: This is a brief of my design for W and L of the transistors and R: I've connected the upper voltage source to ground and made the lower one equal to 0.4 V to make ...
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3answers
595 views

Term for a chip that is used in a camera to detect light

In terms of an integrated circuit, what is the term for a chip that is used in a camera to detect light? I hope this photo helps. What is the technichal term for the light sensitive IC in a camera? ...
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2answers
35 views

Instrumentation amplifier and op amp V+ and V- shorted internally

I have an INA2126 instrumentation amplifier and an OPA277 operation amplifier. I was trying to check if it is busted or not by using the continuity test of the analog multimeter. I'm not sure if it's ...
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2answers
44 views

MOSFET as a switch. Why does the voltage depend on the gate?

Let's say I have an NMOS, the gate is connected to 5 volts, Vth is 0.7 volts and I want to pass a voltage of 7 using the NMOS as a switch. Can you tell me what will be the voltage at the source? Will ...
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1answer
54 views

need help identifing IC's and symbols from a diagram

I am tring to make a circuit and need to purchase the required components but there are some IC's that I can not identify. I tried to google them up but I haven't found anything helpful yet.I also ...
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2answers
99 views

Is there any 1 byte ic? [closed]

I need a system where 1 transistor = 1 bit. with a capcitor for each bit as ram, this would become space consuming, is there an ic that will act like 1 byte ram?
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2answers
92 views

Is there a simple circuit that outputs (min+max)/2 of a single-ended signal given as input?

I have a digital, single-ended, signal that randomly varies between +400mV (logical ‘1’) and 0V (logical ‘0’). I am looking for a circuit to calculate the DC value that corresponds to the average ...
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1answer
55 views

What is the relation between the 5 nanometer process and the end of Moore's Law?

The 5 nanometer process is expected (According to the Intel Roadmap) to be in 2020. In this Wikipedia article, in the first paragraph, they say that: 5 nm was once assumed by some experts to be ...
2
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3answers
94 views

How to level shift an analog signal?

I have a sinusoidal input signal (with a swing of 100mV roughly) centered around 100mV (DC). This signal needs to be input to a CMOS inverter. For this I need to level shift my signal around the ...
2
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2answers
82 views

Can I use LM324 as a Schmitt trigger?

I need 3 opams for a circuit. One for amplification, one for level shifting and one for sharpening badly shaped pulses, For the last part(pulse sharpening) I want to use a comparator/schmitt trigger. ...
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0answers
18 views

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
56 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
39 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
29 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 ...
2
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1answer
168 views

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
36 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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56 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 ...
2
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2answers
61 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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44 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
92 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
139 views

How Can A Coded Firmware Control Hardware [closed]

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
51 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
45 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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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
142 views

What is that? chip identification

What is that? No HD-SDI signal. Black magic camera motherboard
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1answer
62 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
58 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
50 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 ...
0
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1answer
27 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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0answers
23 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 ...
0
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1answer
21 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
80 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 ...
2
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3answers
327 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
104 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
41 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 ...