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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Reading the data of a 93C46 eeprom Reply to Thread. Mar 16, 1. Mar 16, 11 0.

Hello everyone, New to the Forum. 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 eepeom 12V DC power source. Any sugestion would be very helpful.

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

Mar eeprmo, 2. Apr 24, 7, 1, The 93C46 is a memory element. It needs some sort of controller to use it as it works over a serial interface. Look up SPI for those details. Mar 16, 3.

Thank you for the reply. I will try to reformulate the case. If I have a 93c46 in a circuit how can be read the memory content without being altered. And this one I’d like to adapt to a 12Vdc installation. I think it would be helpful for me to find a simple application using a SPI.

Also at using an Arduino circuit as well might be a possibility to test but I’ll need eeprlm directions for that. Mar 16, 4.


Have you tried typing “Arduino SPI” into 993c46 interweb search engine? Mar 17, 5. Thanks for the help. I need to identify each of the 8 pins of the other circuit and see what connections need to be done. Do you think should be another approach? Mar 17, 6. Feb 24, 11, 2, Either the existing board was designed to allow the contents to be read or it wasn’t.

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 18, eeeprom. It was allowed for the content to be read but within a special application. I will get the pins layout soon.

Mar 19, 8. I have the circuit board with a 93c46 eeprom which through an 8 pin connector is linked to the main board. The rest of connections not related to this circuit.

93C46 EEPROM for Atari Jaguar cartridge PCBs

I have also an Arduino Eleven or Uno equivalent with 4 related terminals: The question here is as follows: Thank so far to the Long Island guy. Mar 19, 9. Dec 4, Mar 20, Thanks Rama but this is what I get it: DI and DO together. No alteration to this circuit. I was wondering if there is not an applcation similar to my case or maybe we’ll declare as new descovery. I’m still waiting for some more suggestions. Basically, this helps in saving one IO Pin. If you have to use eepron you need to use the resistors as in the AN, you need to write a bit bang SPI taking care of timing requirements!

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Mar 22, I know nothing about the SPI in the original motherboard circuit. I suppose that that SPI in there was meant to write and read in the 93c The 93c46 on the circuit board has the pin 5 and 6 connected through a 13,7 KOhm, and other connections: The problem is still in the interface from 3 control pins to 4 control pins of Arduino Eleven.

Mar 23, It appears that you are reading 93×46 pins.

I have given the actual pins translated from your pin nos. And the nF is the decoupling cap. Then you could use standard SPI.

Reading the data of a 93C46 eeprom

For the command streams sent to 93C46 all start, cmd or opcode, addrwhen they are not multiples of 8 bits, then you can pad it up with 0 at the beginning. Mar 24, Thank you for the corrections. Pin 4 of the IC goes through Pin 3 of the IC is connected to the junction between I can not split the pins 3 and 4.

93c6 circuit containing the IC should be re-usable as is. EEprom Not reading data Properly Posted by kishore in forum: Embedded Systems and Microcontrollers. You Eperom Also Like: Your name or email address: Do you already have an account?

No, create an account now. Yes, my password is: Quote of the day.