Generating an output Pulse High-Low or inverse in a range of 200ns to 1us

[JB]

Hello everyone,

this request is about a microcontroller chip as (ATMega328p , or PIC)

to be able to generate one or many output pulse on the digital pin.

the time range between 200ns to 1us or higher

I already build a circuit with an MM74HC221 with range of 200ns and higher see pic.

and looking to use a microcontroller to do the same

is this easily feasible with direct port access or something else ?

and what kind of hardware will be needed.

let me know if anyone has any experience or did achieved this timing.

Thanks to all

[Anobium]

I have an real interest in thus but no solution.

Can you share your 74c922 circuit?

[JB]

BTW,
reading about binary function
the function "WordToBin" in the reference manual mention: "string of a ANSI(8-byte)

Example:
string = WordToBin(1) ' Returns "0000000000000001"

[Anobium]

I can deal with thus.

[JB]

(the scope trace pic mention MM74C922 my mistake , it's a MM74HC221)
here's 2 drawings MM74HC221
1: sequence start stand alone
2: with interface

[JB]

Here's a interesting project from Ben Eater on how to program 28C16, 28C64, 28C256, and similar parallel EEPROMs using an Arduino Nano (UNO)

https://github.com/beneater/eeprom-programmer

This can help other who wanted to explore the parallel EEPROM programming