29 Threads found on edaboard.com: Eeprom 24c04
I know there are some pretty big difference between these eeprom memory. But I forget what it is. The difference could be in the acknowledge bit or the write protection pin. I just can't find the difference. All I remember was that I have to change my design last time when one of the particular mfg. have too long a lead time.
Microcontrollers :: 26.03.2006 22:43 :: chicken_feet :: Replies: 0 :: Views: 1630
Please help me by guiding me to correct the Code i have written.
I am using Hyper Terminal for inputting 8 Bytes of data to 8051,
which has to be written in to eeprom 24c04 at ADDR 0A0H
From RAM location 30H to 37H.
After writing cycle is completed, I want to read from eeprom
and again save in RAM starting location from (...)
Microcontrollers :: 31.10.2011 03:06 :: s.k.sahoo :: Replies: 2 :: Views: 581
I need c/c++ source for access I2C eeprom via PC serial port
PC Programming and Interfacing :: 30.12.2002 16:03 :: bobcat1 :: Replies: 3 :: Views: 3226
Standalone programmer for I2C eeprom 24C01, 24C02, 24C08 ...
On this page you can find another nice projects.
Attachement: source asm, compiled hex, schematic
PC Programming and Interfacing :: 13.01.2003 14:01 :: meax98 :: Replies: 3 :: Views: 3307
I find Error.....
I Have two connected I2C devices to At89c2051 , when I disconnect pcf8583, eeprom 24c04 work correct.... but, why cant simulation two I2c devices.....?
PCB Routing Schematic Layout software and Simulation :: 21.11.2003 08:24 :: operator6wp :: Replies: 1 :: Views: 1335
I want to interface the AT89C52 to the serial eeprom AT24c04. i did not make that be4.
could anybody send the scematic and the program to read & write to the eeprom???
could u help?? hope so
Microcontrollers :: 08.12.2005 06:06 :: eng_ahmed22 :: Replies: 7 :: Views: 4068
I wrote this program to check the endurance limit of an eeprom(24c04). It writes and erases a specific location in the eeprom.
The no. of times the eeprom is successfully written is displayed on a 4 * 20 lcd.
I am posting the complete code. You can copy the lcd functions and use them for ur own purpose because (...)
Microcontrollers :: 05.04.2006 00:05 :: waseem :: Replies: 6 :: Views: 1610
can some one guide me how to write the serial data comming from pc. to the eeprom like 24c04..? i m using 89c51 MCU from ATMEL and using KAIL UV-2 to program it in "c"
i can take the serial data out on the ports.. but i am stuck at how to write it to the eeprom like 24c04 and read it back.. on serial port..( (...)
Microcontrollers :: 15.10.2008 17:59 :: ctownsend :: Replies: 3 :: Views: 2740
Please find the attached library file for interfacing 8051 family to 24Cxx eeprom chips. this library is 100% compatible with the compiler u r using.
Please contact me if u need any help.
Microcontrollers :: 07.10.2006 15:18 :: Bus Master :: Replies: 1 :: Views: 1121
Use Atmel/philips 24c04 I2C based eeprom and interface it with your micro by writing a siple routine to make two pins of your micro work as I2C
Microcontrollers :: 23.08.2007 06:17 :: devendra_devgupta :: Replies: 2 :: Views: 586
I have made a USB serial eeprom programmer recently. I wanna find a partner to sell this production.
below is the feather of this production.
1. 8 bit MCU, support self-updata firmware. - easy to updata for future serial eeprom (Support IAP)
2. USB port interface - easy to connect and support PnP
Business, Promotions, Advertising :: 07.10.2007 09:10 :: sonicss :: Replies: 0 :: Views: 3549
I use the DSPIC 30F4011 for my project. When I config to protect code. The eeprom alway readed is 0x00. My PCb have designed without the external eeprom such as 24c04 ... Please help me ! Thanks a lot !
Microcontrollers :: 14.11.2007 23:22 :: hoang_quy :: Replies: 1 :: Views: 929
i am trying to use TWI on atmega8, i want to write single byte 0xaa on eeprom 24c04 .i am simulating it in proteus.i dont get ack response when i send device address to eeprom ,so i send repeated start condition,i have pulled up the sda and scl lines,also address i use is 0xa0, with all address pins of eeprom gnd in (...)
Microcontrollers :: 12.01.2008 02:37 :: ahmedshakeel :: Replies: 0 :: Views: 541
The main difference between these two eeproms is in the way they are interfaced with something else ..
The 93C46 has 3-wire serial interface (Din, Dout and Clock) whereas the 24c04 uses 2-pin I2C interface and can be easily connected to any host I2C device (or bus) ..
Other differences can be found in their datasheets which are readily availa
Microcontrollers :: 24.07.2009 03:54 :: IanP :: Replies: 1 :: Views: 1343
Free software with minimum hardware, maybe this will help you read and write to eeprom.
Embedded Systems and Real-Time OS :: 28.04.2010 07:05 :: snoopy :: Replies: 3 :: Views: 1455
i am using eeprom 24c08, i wanto to store an many strings into eeprom one string is of 4 bytes. but i dont know how to put it in eeprom. can anyone send me the code for 8051 (keil) or PIC (using MIKROC) in C language.....the string is of having 1000 each of 4 bytes. plz send me the code....
email id: email@example.com[/emai
Microcontrollers :: 25.06.2010 06:49 :: ashu_aka88 :: Replies: 4 :: Views: 5618
plz send program for interfacing pic16f877 with eeprom24c04
Microcontrollers :: 22.08.2010 22:55 :: jaha1988 :: Replies: 2 :: Views: 692
architecture for all 8 bit are same...... any IC atmel or philips any controller all are same.........
But features are slightly different....
---------- Post added at 22:49 ---------- Previous post was at 22:47 ----------
better you use external eeprom AT24c02 or 04 using I2c protocol......
Microcontrollers :: 09.02.2011 12:19 :: ckshivaram :: Replies: 14 :: Views: 836
24c64 has a different frame format compared to other eeproms .. 24c04 and 24c64 frame format differs.. please check the datasheet for more details.........
Microcontrollers :: 25.07.2011 23:05 :: ckshivaram :: Replies: 7 :: Views: 1355
24c04 is 4kB eeprom according to datasheet.
4kB = 4096 = 15bits of addresses right?
so the address would be 0x000 to 0x2FFF ??
The datasheet says
organized with 32 pages of 16 bytes each, the 4K require a 9bit data word address for random word addressing
This is a [B
Microcontrollers :: 01.08.2011 03:36 :: alexan_e :: Replies: 22 :: Views: 1160
I'm making a distance measuring vehicle.i use pic 18f452.counted data will store at external eeprom 24c04.next when i plug via rs232 to the pc data will show in hyper terminal..i use pic c compiler.will somebody help me to code this project.I'm new.
Microcontrollers :: 23.10.2011 19:15 :: snjesala463 :: Replies: 1 :: Views: 284
I know, due to the difference in address width we can't use code for 24C02 while using 24C1024. But I have used 24c04 instead of 24C02 & it is working alright.
So my question is that whether code will change for every eeprom or it is applicable for group. I will explain my doubt further. Code A will work for 24C02/04/08, code B will work for 24C
Microcontrollers :: 30.03.2012 05:24 :: sanjayphirke :: Replies: 2 :: Views: 730
You have to first tell us which eeprom you are using. The protocol and interface used for communication with PIC must be known. This depends on the eeprom you are using or are required to use. You may have to use SPI, I2C or even parallel communication. But you must tell us which eeprom you are using.
Microcontrollers :: 26.05.2012 12:37 :: Tahmid :: Replies: 4 :: Views: 508
I am using 24C64 with Atmega32, the concept is borrowed from that of Data-logger from dharmanitech.com.
To increase memory I wish to use 24C256 and for some trials I tried to use 24c04.
The routines for eeprom are taken from the files from the above link i.e. 24C64.h and 24C64.c.
Now the question is th
Microcontrollers :: 11.01.2013 15:19 :: ark5230 :: Replies: 8 :: Views: 1350
For sure datasheet say Kbits not Kbytes. If you need more spaces for bytes use several eeproms on I2C, and you need to set for each chip different address.
Microcontrollers :: 22.05.2013 16:05 :: tpetar :: Replies: 6 :: Views: 478
Hi all. I've got lcd smartie 2x16 board from sure electronics. Board is in version 1. There is many components missing comparing to v2 and v3 boards.
can somebody having v2 or v3 post picture of the board? I want to add temperature sensor (LM75), eeprom (24c04) and some resistors to upgrade my board.
I was looking everywhere and there is no i
Software Requests :: 16.06.2013 11:40 :: mazur888 :: Replies: 2 :: Views: 49
hi this orion programmer schematci,software and pcb knowing that this progrramer(interface)is called universal programmer Serial eeprom bcz its support the folloeing eroms:
24c00 24c01 24c02 24c04 24c08 24c16 24c32 24c64 24c65 24c128
24c164 24c174 24c256 24c512
25010 25020 25040 25080 25128 25160 25256 25320 25512 25640
2913 2914 2919 2922
PC Programming and Interfacing :: 09.11.2004 13:52 :: anyaddress :: Replies: 1 :: Views: 3780
I am trying to make a i2c connection between 24c04 eeprom and pic16f877. I wrote the codes that need for. But I guess, it has some problem. But i can't find it.
#define LC01CTRLIN H'A0' ; I2C value for CONTROL BYTE when
; INputing data to the eeprom
#define LC01CTRLOUT H'A1' ; I2C value for CONTROL BYTE when
; requesting OUTput from t
Microcontrollers :: 30.04.2005 03:58 :: optech :: Replies: 5 :: Views: 3573
Try They have some very good eeprom programmers.
Service Manuals, Requests, Repair Tips :: 16.12.2009 22:38 :: rascabuche :: Replies: 6 :: Views: 2643