In simple terms, EEPROM is a type of memory module that can be used to hold, retrieve and delete information when installed in a computer or other electronic device. MC68HC11A1, MC68HC11A8, MC68HC11E9, MC68HC11EA9, MC68HC11E20, MC68HC11F1, MC68HC11K4, MC68HC11KA2, MC68HC11KA4, MC68HC11KG4, MC68HC11KS2, MC68HC11KS8, MC68HC11L6, MC68HC11P2, MC68HC11PA8, MC68HC11PH8 I don't know your programmer. But normally, you clear the buffer (fill the whole adress space of the 2716 EPROM with ffs), then read your file at the beginning of the buffer. So the ffs of the first half of the buffer will be overwritten by the content of the 2708 file. The second half will remain ffs. Then you can burn the buffer into a 2716. The second generation 2704/2708 devices switched to n-MOS technology and to three-rail V CC = +5 V, V BB = -5V, V DD = +12V power supply with V PP = 12V and a +25V pulse in Programming mode.

There are XXXX different eeproms and mcu´s and some programmers can read some of them for rest you need other programmers. Super fast industrial gang programmer with four independent modules, ISP capabilities and USB 2.0 connectivity. The 448Pro2AP is built to meet the demands of high volume production programming with automated handlers and ATE machines...

Why is 2708/2704/TMS2716 difficult to program?

In other words, to erase your EPROM, you would first have to X-ray it and then put it in an oven at about 600 degrees Celsius (to anneal semiconductor alterations caused by the X-rays). The effects of this process on the reliability of the part would have required extensive testing so they decided on the window instead. [11] Later the decreased cost of the CMOS technology allowed the same devices to be fabricated using it, adding the letter "C" to the device numbers (27xx(x) are n-MOS and 27Cxx(x) are CMOS). a b c "1971: Reusable semiconductor ROM introduced". Computer History Museum . Retrieved 19 June 2019.

Universal 48-pin programmer with USB 2.0 and parallel connectivity. Dataman 48UXP features intelligent hardware, including microprocessor and FPGA, allowing it to program devices you use today and the devices of tomorrow...We can now turn to the software. I’ve made a fair few changes to the original software, largely to improve performance and remove redundancy. I'd like comments on the above. This has worked well for me in the past but I'd like the guidance of people smarter than myself. Since I’ve already written code to write to a chip with software data protection via a Z80 I thought it would be helpful to update my own ‘BenPrommer’ to handle the 28C256 and to document both the hardware and software changes needed. Hardware Changes

or 27C512 are double the capacity of a 27256 / 27C256. These require two extra wires. Then the machine will see them as four 16K byte ‘ROM chips’. The physical design is in the form of an Arduino Mega shield. I chose this because it was large enough to accommodate all of the components, and there would be enough I/O pins without needing latches or I/O expanders.

SEEprog

DIP, SDIP, PLCC, JLCC, PGA, LGA, SOIC, SOJ, SOT, QFP, TQFP, PQFP, VQFP, MQFP, LQFP, TSOP, SOP, TSOPII, PSOP, SSOP, TSSOP, SON, EBGA, FBGA, FTBGA, VFBGA, μBGA, CSP, SCSP, QFN, HVQFN etc. I had a Willem but it died so my current programmer is a Top 853 out of China (fig 3). It's also inexpensive, is completely software driven and can supply all necessary programming voltages from a USB link. It seems to work well, although at the time of writing the manual for this Chinese device appears to have been written using an early version of Google Translator! It's almost completely unreadable. If you know the basics though the software is easy enough to follow. If Brett is building his own EPROM programmer and wants to use larger capacity EPROMs, then we can discuss the options. Too cheap to not to have it if you have to deal with old BMWs. Excellent EWS tool, makes everyone happy: the customer can get a cheap remote key, and you can make fast profit. Has plug-on-chip connectors, what are doing its work perfectly if you remove the protecting resin from the chip pins. Does all EWS protocols, but be cautious it can delete the 2D47J content.

So many things these days are mass produced, not designed to last, and make as cheap as possible for as much money as possible. We started RetroSix not as a mass market business, instead with the aim of perfection. Recreating moulds of original shells, casting them from quality ABS, redesigning hardware such as power supplies, USB-C, audio and more, to upgrade your consoles to the highest quality available. No cheap junk sold for profit. And yes, programmers use a DC-DC inverter to get the high programming voltage (be it 12V, 12.5V, 13V, 13.5V, 21V or 25V). If there is a problem with the DC-DC inverter, none of the EPROM cells will be programmed properly, or maybe just the first handful will be and then the rest will fail to be programmed properly.

Super fast industrial universal programmer with ISP capabilities and USB 2.0 connectivity. The 48Pro2AP is built to meet the demands of production programming with automated handlers and ATE machines... If anyone else is trying to use one of these on a modern PC with a serial port, you can use PROMPROG in DOS box or the windows version in VirtualPC (only tested on win7 before fixing the cable). The DOSBox option is much better as it boots in about 1 second and the config file contains an AUTOEXEC.BAT so PROMPROG will start immediately and DOSBox close when the program does. Ayers, John E (2004), Digital integrated circuits: analysis and design, CRC Press, p.591, ISBN 0-8493-1951-X . Some types of EEPROM chips or flash RAM chips can also be used. There is a (bedtime reading) thread about using EEPROMs here. I do recommend having a look at using EEPROMs before considering EPROMs