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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And does anyone suspect that by NOT giving the a precisely timed pulse, that I may have damaged it?
When I set up my shop a few years ago when I started grad school, I got a programmer from Conitec. That’s why several types of memory had similar pinouts, though hardwire jumpers also had to be set, due to the differences.
(PDF) 28C16 Datasheet download
Some as low a 10, Subject of the new topic: I’ve never used the Willem Programmer, I don’t sell it, etc. To go even more off-topic D to be more accurate: The new topic will begin with this message.
The Group moderators are responsible for maintaining their community and can address these issues. The 8-bit CPUs back then all had bit address buses and, therefore, a max memory space of 64K 65, bytes. At 10mS per byte, it would get quite tiresome. Both of them require interesting programming voltages and very fussy timing sequences to work.
What’s the deal with the ? Just Beyond the Fringe http: 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 at once.
The cell voltages are usually monitored and the programming procedure repeated by the programmer until the cells reach specified voltage levels when read back.
Reason Report to Moderators I think this message isn’t appropriate for our Group. Chuck Richards Chuck, The is an electrically-erasable version of the A RAM device, obviously, can be written to, about the same speed as it can be read. It reads just fine, but it won’t take any new data.
A few months after I got it back, the same thing happened again. One day A good 28×16 came in the shop all upset that his drive was dead, I hald it to my nose and went to the back to get a screwdriver and a chip. The intent for these devices was to hold configuration info, and other field alterable data. This cannot be undone. A ZIF socket was inserted in one of those slots.
CPU and memory cards where made to accommodate this situation. What do I need to do, in order to write data to the or 28C16?
AT28CPC IC EEPROM 16K NS 24DIP Atmel datasheet pdf data sheet FREE from
Their site has forums that may point you in the right direction. If you write to the same address at one write per 10mS, you’d kill that byte in about 20 minutes.
Anyone familiar with these parts? 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. Mine did arrive with a construction error though, a resistor was the wrong value and caused datwsheet programming voltage 28cc16 be too low and writing would fail most of the time after the first few uses. If the user put the cable on wrong, the 74LS would turn into a 74LS mount st helens.
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Thanks anyway for your valuable time. Most new ones withwrite cycles, before data transfers get iffy. There are algorithms coded into the programmers to hit the EPROM with the dattasheet voltages for specific time periods. It used an 8-pin TI switching chip to generate the programming voltages.