Author Topic: Chip identification  (Read 663 times)

0 Members and 1 Guest are viewing this topic.

Offline Snake-manTopic starter

  • Newbie
  • Posts: 4
  • Country: il
Chip identification
« on: March 06, 2022, 11:47:12 am »
I have an 8-foot chip that I need to identify in order to connect to a 431 programmer.
  This is probably a binary chip.  Series 24 or 25 ..
Attached are pictures of 3 chips I would be happy to help urgently. 
Which one is the programming chip?
Thanks!!
 

Offline Snake-manTopic starter

  • Newbie
  • Posts: 4
  • Country: il
Re: Chip identification
« Reply #1 on: March 06, 2022, 11:48:26 am »
This is more
 

Offline gamalot

  • Super Contributor
  • ***
  • Posts: 1306
  • Country: au
  • Correct my English
    • Youtube
Re: Chip identification
« Reply #2 on: March 06, 2022, 01:02:58 pm »

Offline Snake-manTopic starter

  • Newbie
  • Posts: 4
  • Country: il
Re: Chip identification
« Reply #3 on: March 06, 2022, 01:28:47 pm »
How do I detect them in a 431 programmer like asprogramer for example?
 

Offline gamalot

  • Super Contributor
  • ***
  • Posts: 1306
  • Country: au
  • Correct my English
    • Youtube
Re: Chip identification
« Reply #4 on: March 06, 2022, 02:23:28 pm »
I don't know anything about the 431 programmer, but since you mention the 24 or 25 series, I'm guessing you're looking for an EEPROM chip. It seems to me that none of the chips in your pictures look like the one you're looking for.

Offline Ian.M

  • Super Contributor
  • ***
  • Posts: 12865
Re: Chip identification
« Reply #5 on: March 06, 2022, 02:39:23 pm »
None of them are any sort of Flash, EEPROM or other non-volatile memory, so none of them can or should be connected to a CH341A serial memory programmer.

Still no datasheet for #3, but i did find a reference to it:
Quote
iPod Authentication - (IC600) MFI341S2313 is the iPod authentication ic. IC600 communicates to the J3 processor (IC100) via and I2C bus running at approximately 50KHz. When a remote Apple device is connected to the head unit via the USB, the external Apple device challenges the head unit and the head unit counterchallenges the Apple device. Once proper identification is verified, IC600 is placed in Reset mode.
Its listed elsewhere as a "decryption chip" so certainly isn't serial memory even though it has an I2C bus.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf