I need the information on the technology node of the Arduino-UNO Rev3 (Atmega328P) and Arduino-Zero (ATSAMD21G18, 32-Bit ARM® Cortex® M0+) boards. Did not find that in the datasheets. Does anyone have a clue? I suspect that UNO may be 65nm and Zero might be at an advanced node. Can anyone verify this?
The design of the die such as its size, the number of transistor or the size of the transistors will not be in the data sheet and these parameters can anyway change.
Here is some chatter:
https://www.reddit.com/r/arduino/comments/izedva/what_nm_process_does_atmega328p_uses/
https://siliconpr0n.org/archive/doku.php?id=azonenberg:atmel:atmega328
2 Likes
Why do you "need" that?
At the Arduino board level, what is its relevance?
It's purely a matter of the chip (Atmega328P ATSAMD21G18) - nothing to do with Arduino.
Have you tried contacting Microchip? Or distributors?
Atmel/Microchip doesn't seem to say.
azonenberg:atmel:atmega328 [Silicon Pr0n] says 350nm, and similar questions suggest SAMD21 is 90nm.
1 Like
If the 7-nanometer node features silicon densities between 90-102 million transistors per square millimeter based on WikiChip's own analysis, then how many transistors are there on
the 8.82 mm2 die of 350-nm ATmega328P MCU?
"Need" as in I am trying to observe some device-specific characteristics of the Atmel chips using Arduino UNO and Zero boards, specifically the start-up values. Yes, I agree it is purely chip matter. No, I haven't contacted microchip, only referred to the datasheets.
What do you mean by that? What's your interest?
They serve as a digital fingerprint for a given device, specifically Physically Unclonable Functions (PUFs). You can look at https://www.intrinsic-id.com. They make SRAM-PUF-based products.
Yes, I've heard of them.
But that needs intimate knowledge & control of the process, and the physical device design - none of which you have on a commodity processor.
I would also suspect they work at the analogue level - which, again, you don't have access to on a commodity processor.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.