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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: Motor Speed Control
Date: Sun, 10 Mar 2024 21:02:17 +1100
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On 10/03/2024 7:59 pm, Cursitor Doom wrote:
> On Sat, 09 Mar 2024 15:13:20 -0800, John Larkin <jl@997PotHill.com>
> wrote:
> 
>> On Sat, 9 Mar 2024 14:56:43 -0800, KevinJ93 <kevin_es@whitedigs.com>
>> wrote:
>>
>>> On 3/8/24 8:42 PM, Bill Sloman wrote:
>>>> On 9/03/2024 5:49 am, KevinJ93 wrote:
>>>>> On 3/7/24 8:48 PM, Bill Sloman wrote:
>>>>>> On 8/03/2024 7:13 am, KevinJ93 wrote:

<snip>

>> 1702 was a p-mos UV-erase part. It was called an eprom.
> 
> Are EPROMs obsolete now? I assume they must be or we wouldn't have USB
> drives and SD cards etc.

EPROMs are obsolete, but they were replaced by electrically erasable PROM.

USB cards and SD cards do the same job, but they cost more and take up 
more space on the board - if you don't need much programmable memory an 
EEPROM can be big enough.

https://au.element14.com/w/c/semiconductors-ics/memory/eeprom/prl/results?ost=eeprom&sort=P_PRICE

-- 
Bill Sloman, Sydney