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GIANTEC 93 series EEPROM products work well under stable voltage within . This program is based on GIANTEC Micro Wire EEPROM 93C46 and Keil C 93C46 Technical Data, x8(1k) Serial CMOS EEPROM Datasheet, buy 93C M93C56, M93C 16Kbit, 8Kbit, 4Kbit, 2Kbit and 1Kbit (8-bit or bit wide). MICROWIRE® Serial Access EEPROM. FEATURES SUMMARY.

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Mar 16, 11 0. Mar 19, 8. It appears that you are reading mirror pins. Reading the data of a 93C46 eeprom Reply to Thread.

Have you tried typing eperom SPI” into an interweb search engine? Apr 24, 7, 1, I have the circuit board with a 93c46 eeprom which through an 8 pin connector is linked to the main board.

I can not split the pins 3 and 4.

Reading the data of a 93C46 eeprom

And the nF is the decoupling cap. Embedded Systems and Microcontrollers. Basically, this helps in saving one IO Pin. Thank so far to the Long Island guy. Thanks Rama but this is what I get it: Then you could use standard SPI. Either the existing board was designed to allow the contents to be read or it wasn’t.


Pin 3 of the IC is connected to the junction between Do you think should be another approach? I will get the pins layout soon. Mar 17, 6. If not then more drastic measures will be required including a “vampire” connector that taps into the existing circuitry or desoldering and isolating the chip so that you can get to the signal lines without interference.

Mar 24, Mar 16, 3.

I was wondering if there is not an applcation similar to my case or maybe we’ll declare as new descovery. The 93c46 on the circuit board has the pin 5 and 6 connected through a 13,7 KOhm, and other connections: Mar 23, If you have to use this you need to use the resistors as in the AN, you need to write a bit bang SPI taking care of timing requirements!

I know nothing about the SPI in the original motherboard circuit.

Reading the data of a 93C46 eeprom | All About Circuits

Thanks for the help. Mar 17, 5.

And this one I’d like to adapt to a 12Vdc installation. Quote of the day. Your name or email address: I’m still waiting for some more suggestions. The question here is as follows: Mar 22, Mar 16, 2.

Posted by kishore in forum: I suppose that that SPI in there was meant to write and read in the 93c You May Also Like: No, create an account now.


Also at using an Arduino circuit as well might be a eepprom to test but I’ll need more directions for that. I need to identify each of the 8 pins of the other circuit and see what connections need to be done.

Mar 20, Hello everyone, New to the Forum.

If I have a 93c46 in a circuit how can be read the memory content without being altered. It was allowed for the content to be read but within a special application. I am looking for a link or a simple application to be used in reading the data of a eeprom type 93C46 circuit used for counting the number and duration of activations of a 12V DC eepromm source. Dec 4, Pin 4 of the IC goes through The circuit containing the IC should be re-usable as is.

Mar 16, 4.

Feb 24, 11, 2, I will try to reformulate the case. Mar 16, 1. Thank you for the corrections. Mar 19, 9.