I²C uses a two-wire serial interface, comprising a bi-directional data line and a clock line. The devices carry a built-in 4-bit Device Type Identifier. Offer 24C02W6 ST from Kynix Semiconductor Hong Kong Chips. datasheet 24C02W6 Datasheet. Package: SOP. Quantity: PCS. Lead Free. AT24C08A. AT24C16A(3). Z1–SEEPR–5/ Notes: 1. Not Recommended for new design; Please refer to AT24C01B datasheet. 2. Not Recommended for.

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24C02W6 Даташит ( PDF 24C02W6 Datasheet )

Originally Posted by ReverendJones. Thank you in advanced, Peter Attached is an image of the chip and a data sheet for 24cx Attached Images. Muskegon, Michigan My Country: Originally Posted by vinceroger69 i will see if i can get the code for you.

Originally Posted by vinceroger I only glanced at that thread but it was though folks would pass over their info and have a mpw given in response Let me ask what i should have asked to begin with Originally Posted by 2andrewd read through this thread.

Min Vcc for this IC is 2. There is a schematic of a circuit consisting of several zener diodes and a couple other components that allowed me to pull the bios pw off of a T41 thinkpad but i believe the chip was an Atmel.

Okay, so after reviewing the datasheet which is the correct one may I add and taking datawheet readings. Find More Posts by trebo. I don’t doubt for a second that any master password is derived from system specific properties. Just to let you know the way I’m doing it, I’m attaching a wire to whatever pin combo and then turning the computer on.

Find More Posts by 2andrewd. The Vcc drops to nothing well at least under the 2. Because I think it would be pointless if there is a diffent chip for the memory, because the settings 24x02w6 stored elsewhere. Shorting a EEPROM chip I posted this on a older thread I have and just wanted to make a new thread in the event that someone has some questions later in life this might be easier to come across. Originally Posted by 2andrewd Let me ask what i should have asked to begin with Originally Posted by Peter9DO.

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24C02W6 Datasheet and 24C02W6 manual

The 24C02W6 IC dstasheet a device reset within it. Below is the Device Reset information from the Data sheet: Last edited by heavymachines; at At power-up continuous rise of VCCthe device does not respond to any instruction until VCC reaches the power-on-reset threshold voltage this threshold is lower than the minimum VCC operating voltage defined in Table 6, Table 7 and Table 8.

United States Line Voltage: Maybe I don’t understand why these combos, from what the schematics shows, it really doesn’t make any sense to me. Find More Posts by gilly Originally Posted by 2andrewd.

I believe I have found the schematics for this chip, but seeing the actual chip is obsolete I’m going off of an ROHS version that I think is the same. Vel mihi ede potum vel mihi redde nummos meos!

24C02W6 Datasheet, PDF – Alldatasheet

I dataaheet done all 3 of these combinations with no results! Well, I was working on the laptop and retracing my steps, make sure I was doing things right seeing that I have worked on this so long ago I don’t remember what I had completed seeing my notes on this one were not very complete, I’m sure out of pure frustration. Okay, so now I’m going to go read through the data sheet and I will be 24c022w6 later!

I posted this on a older thread I have and just wanted to make a new xatasheet in the event that someone has some questions later in life this might be easier to come across. Yea, there is no CMOS battery on this one So, does that mean every time you shut the computer down you’re resetting the BIOS chip?

Originally Posted by heavymachines. Last edited by trebo; at I have a A08 bios in my dell Latitude, My Systems information says that, Dell is the bios 24c02q6 If thats any help. Also, I took a picture of the chip itself for ID purposes. Thats a super cap which effectively IS the battery.


All times are GMT Nuneaton Warwickshire My Country: In a similar way, during power-down continuous decrease in VCCdatashret soon as VCC drops below the power-on-reset threshold voltage, the device stops responding to any instruction sent to it.

So you have no way to boot separate media of any kind? Specifically what is locked via pw? I’m running out options to try with no luck thus far I’m debating swaping out the chip itself, but I’m not sure if the 24c0w6 IC has built in memory or is it linked to 2c402w6 memory modual. God knows, had as low as VAC I’m a: Also, this laptop has NO BIOS battery but a larger surface mounted cap, I don’t understand how the settings stay set if there is nothing there to keep power going to it.

Find More Posts by ReverendJones. Thank you for all the help that everyone has provided thus far! Originally Posted by heavymachines hi i should be able to help you i have to software for this very kind of issue. Find More Posts by vinceroger Pin 8 Vcc, Pin 4 is ground Vss If I was going to short it I would connect Pin 8 to Pin 4, if I did this while the computer was on it should give it a short, but will datawheet damage the chip?

Not sure if it is case sensitive? Last edited by Peter9DO; at If someone could please help me and just run through the process of shorting the chip to verify that I’m doing this all properly and to make sure I have done the right pin combination, I would be in debt to you!