Category. Description, 16K 2K x 8 Parallel Eeprom with Software DATA Protection. Company, ST Microelectronics, Inc. Datasheet, Download 28C16 datasheet. It is offered only with the TSOP28 package. The reader should refer to the M28C17 datasheet for more information about the Ready/Busy func- tion. OPERATION. FAST ACCESS TIME: 90ns. SINGLE 5V ± 10% SUPPLY VOLTAGE. LOW POWER CONSUMPTION. FAST WRITE CYCLE: – 64 Bytes Page Write Operation.
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You won’t get anywhere without a data sheet for exactly the parts you have, and even then it’s a lot of work to make a programmer that does the job correctly.
One datasheet A good customer came in the shop all upset that his drive was dead, I hald it to my nose and went to the back to dahasheet a screwdriver and a chip. Egg on my face. When I set up my shop a few years ago when I started grad school, I got a programmer from Conitec. No contracts, No fees, No Kidding!
Most sane people don’t spend their time building clocks with antiquated technology! Chuck Richards Chuck, The is an electrically-erasable version of the Hello, Forgive this slightly off-topic question: However, if you are looking to program EEPROMs, you may get good ideas from the Willem programmer, as it seems to be open-source of some variety.
Their site has forums that may point you in the right direction. Do they require an exact timing pulse to be applied to the “not WE” pin, in order to write to it? What’s the deal with the ?
A few months after I got it back, the same thing happened again. If the user put the cable datahseet wrong, the 74LS would turn into a 74LS mount st helens.
The new topic will begin with this message. It used an 8-pin TI switching chip to generate the programming voltages. Back when I just got started in the electronics business, I was working as tech and general slave. To go even more off-topic If you write to the same address dataasheet one write per 10mS, you’d kill that byte in about 20 minutes.
That’s why several types of memory had similar pinouts, though hardwire jumpers also had to be set, due to the differences. Your email is included with the abuse report. Both of them require interesting programming voltages and very fussy timing sequences to work. The 8-bit CPUs back then all dtaasheet bit address buses and, therefore, a max memory space of 64K 65, bytes. I think it’s an open-source homebrew programmer — you can build it yourself or buy it already built.
Some as low a 10, And does anyone suspect that by NOT giving the a precisely timed pulse, that I may have damaged it? CPU and memory cards where made to accommodate this situation. Subject of the new topic: Being from the “so, use a bigger hammer” school of thought, I dataxheet soldered the switcher and instead ran some cables from a nice Lambda 50A regulated bench supply to the programmer. Reason Report to Moderators I think this message isn’t appropriate for our Group. It depended on manufacturer.
28C16 Datasheet(PDF) – STMicroelectronics
I got away with just using a 74C keyboard encoder, and feeding an inverted version of the “valid data” output from datzsheet, directly to “not WE” on the Dallas part. Two E’s instead of one Big difference.
The Group moderators are responsible for maintaining their community and can address these issues. Won’t touch the s I have, though Anyone familiar with these parts?
(PDF) 28C16 Datasheet download
First hit on google: So, I decided to do a little experiment: Most new ones withwrite cycles, before data transfers get iffy. The cell voltages are usually monitored and the programming procedure repeated by the programmer until the cells reach specified voltage levels when read back.
I have one of those, it works great. Once I fixed that it has been great, and the blame goes to the Korean manufacture of my particular unit rather than the design itself. These requirements are different for datasheer manufacturers and even different part numbers from the same manufacturer.
There was a most satisfying “BLAM!
Reminds me of the Old Apple ][ Disk ][ Drives. The ST Microelectronics part referenced above has a 64 byte page buffer, which means you can write up to 64 bytes to it – quickly – then pause and all 64 will program dataheet once. It’s easy to find info on the 28C