Hi guys,

I have found this this chip in my luggage. I have no idea about it.
I can only read HT24LC02 on chip.
Anyone knows what is this, and how can i use it ?

Thanks a lot in advance.

 

Hello,

It is an eeprom:
https://www.holtek.com/productdetail/-/vg/24lc02

I do not know what it was doing in your luggage.

Bertus

 

Why did you not do an internet search? It took me 2 seconds to find this:
The HT24LC02 is a 2K-bit serial read/write nonvolatile memory device using the CMOS floating gate process. Its 2048 bits of memory are organized into 256 words and each word is 8 bits. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. Up to eight HT24LC02 devices may be connected to the same 2-wire bus. The HT24LC02 is guaranteed for 1M erase/write cycles and 40-year data retention.
Regards,
Keith

 

Why did you not do an internet search? It took me 2 seconds to find this:
The HT24LC02 is a 2K-bit serial read/write nonvolatile memory device using the CMOS floating gate process. Its 2048 bits of memory are organized into 256 words and each word is 8 bits. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. Up to eight HT24LC02 devices may be connected to the same 2-wire bus. The HT24LC02 is guaranteed for 1M erase/write cycles and 40-year data retention.
Regards,
Keith

Hello Keith,
Thanks for reminding internet search..
Gush.. for sure i made an internet search and i have read the same informations as you mentioned.
What i’m really asking is what could be the purpose of this assembly?
Since i have no idea how it got in my luggage, i thought maybe it’s a thing that used in airport security controls..

 

Its got 8 legs, it a Bug!
Max.

 

Hello Keith,
Thanks for reminding internet search..
Gush.. for sure i made an internet search and i have read the same informations as you mentioned.
What i’m really asking is what could be the purpose of this assembly?
Since i have no idea how it got in my luggage, i thought maybe it’s a thing that used in airport security controls..

Hi,

There is a simple explanation.

It is a secret military chip someone dropped it into your luggage making you an anonymous chip mule
They intended to get it back without you knowing it when you got to your destination.

I am joking but really, can you say where you were coming from and where you were going?
It could actually be a secret message in code stored on the chip that someone intended a covert operative to pick up later. Dont give out exact addresses just cities.

 

Its got 8 legs, it a Bug!
Max.

Hi,

There is a simple explanation.

It is a secret military chip someone dropped it into your luggage making you an anonymous chip mule
They intended to get it back without you knowing it when you got to your destination.

I am joking but really, can you say where you were coming from and where you were going?
It could actually be a secret message in code stored on the chip that someone intended a covert operative to pick up later. Dont give out exact addresses just cities.

Hi,

There is a simple explanation.

It is a secret military chip someone dropped it into your luggage making you an anonymous chip mule
They intended to get it back without you knowing it when you got to your destination.

I am joking but really, can you say where you were coming from and where you were going?
It could actually be a secret message in code stored on the chip that someone intended a covert operative to pick up later. Dont give out exact addresses just cities.

Hahah, maybe
Domestic flight in Turkey, but it has been nearly 3 months. I have never looked into my luggage since my last trip.
Do you know how can i open/read it ?

 

Hahah, maybe
Domestic flight in Turkey, but it has been nearly 3 months. I have never looked into my luggage since my last trip.
Do you know how can i open/read it ?

Hi again,

Yes, but the message could be in code or even just some computer data that would appear random to a casual observer and not related to any crime of any sort, or it could even be a blank brand new chip.

To read the chip you would look up the data sheet and find out what technology it is using like I2C or just some other serial protocol. You would then have to interface it probably with a microcontroller to extract the data.

 

Hi again,

Yes, but the message could be in code or even just some computer data that would appear random to a casual observer and not related to any crime of any sort, or it could even be a blank brand new chip.

To read the chip you would look up the data sheet and find out what technology it is using like I2C or just some other serial protocol. You would then have to interface it probably with a microcontroller to extract the data.

Thanks a lot for your interest Mr. AI.
I will follow your advises and try my best.
Have a nice evening.

 

Domestic flight in Turkey,

Say no more!
Say no more!.
(don't mention the war).

With apologies to basil Fawlty.!
Max.

 

It appears to have a USB connector on one end. What happens if you plug it into a USB socket on your computer? Does it show up as a flash drive?

 

It appears to have a USB connector on one end. What happens if you plug it into a USB socket on your computer? Does it show up as a flash drive?

Hi Keith,

I thought the same and tried to insert it in to my pc’s usb but its has nearly x0,70 width of standart USB plug.

 

Hi Keith,

I thought the same and tried to insert it in to my pc’s usb but its has nearly x0,70 width of standart USB plug.

The connections of the two SMD resistors suggests that it may connect into a USB mini or micro port, but the chip part number says that it is a memory right? You cant plug a EPROM directly into a USB port unless it says so in the data sheet. LOOK at the data sheet to find out.
The data sheet for that part numbers shows that it is an I2C serial EEPROM so it is not a USB device. The trace connections look like they are compatible with that part number but it's a little hard to see for sure as the photos are not that good. Maybe you can trace the lines yourself and report back what pins they connect to.
But so far it looks very likely it really is that part number it is just mounted to a PC board. That would be done when someone makes a "module" where the address pins are hard wired, and that means it has a specific I2C address. You would have to find out how the address pins are wired in order to figure out the address you need to use to communicate with the memory. This can be determined if you trace out the wiring of the board.

Because of this accidental confusion over USB and I2C, it makes me wonder if anyone has made a USB EEPROM reader for the home PC. That would enable you to read the chip on a regular home PC. You could create one with a microcontroller such as the Arduino or a PIC and interface with USB or RS232. You'd also have to write a Windows application (or other op sys app).