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.
|Published (Last):||10 January 2010|
|PDF File Size:||6.36 Mb|
|ePub File Size:||10.9 Mb|
|Price:||Free* [*Free Regsitration Required]|
Chuck Richards Chuck, The is an electrically-erasable version of the This situation was usually handled by either running the whole memory space for the slowest device, or for the fastest memory, and then adding ‘wait-states’ for the slower devices.
28C16 EEPROM used in Commodore and Amiga equipment
I have one of those, it works great. CPU and memory cards where made to accommodate this situation. 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.
They are not intended to hold actual program code, even though you could do this. Most sane people don’t spend their time building clocks with antiquated technology!
Hello, Forgive this slightly off-topic question: Both of them require interesting programming voltages and very fussy timing sequences to work. Their site has forums that may point you datasheeet the right direction.
28C16A-15 – 28C16A 16K 250ns Parallel EEPROM Technical Data
I got away with just using a 74C keyboard encoder, and feeding an inverted version of the “valid data” output from that, directly to “not WE” on the Dallas part. Anyone familiar with these parts?
It was the 70’s think polyester leisure suits. Got away without needing a pulse.
28C16 Datasheet PDF
Your email is included with the abuse report. Just Beyond the Fringe http: There was a most satisfying “BLAM! The intent for these devices was to hold configuration info, and other field alterable data.
Two E’s instead of one Big difference. There are algorithms coded into the programmers to hit the EPROM with the appropropriate voltages for specific time periods.
Been there and successfully done both. Reminds me of the Old Apple ][ Disk ][ Drives. Number one rule of experimenting is to alway be datasheer to identify off spec parts to avaoiod re-using them as good ones.
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.
That’s why several types of memory had similar pinouts, though hardwire jumpers also had to be set, due to the differences. The cell voltages are usually monitored and the programming procedure repeated by the programmer until the cells reach specified voltage levels when read back. Egg on my face. If you write to the same address at one write per 10mS, you’d kill that byte in about 20 minutes.
This cannot be undone. Otherwise, you can write single bytes to it, by pausing after each byte. Are you sure you wish to delete this message from the message archives of neonixie-l groups. Being from the “so, use a bigger hammer” school of thought, I un- soldered the switcher and datasheeg ran some cables from a nice Lambda 50A regulated bench supply to the programmer. A needed a write pulse longer than uS ,nSbut shorter than 1mS 1,nS.
Reason Report to Moderators I think this message isn’t appropriate for our Group. When I set up my shop a few years ago when I started grad school, Dtasheet got a programmer from Conitec. What do I need to do, in order to write data to the or 28C16?