AMD AM685DL - analog voltage comparator : weekend die-shot

Another high-performance chip from AMD: AM685 - analog voltage comparator with 6.5ns propagation time and 3ns latch setup time.
Die size 1319x767 µm.



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Motorola MC14490 - CMOS button debouncer : weekend die-shot

Motorola MC14490 is a Hex Contact Bounce Eliminator, made back in 1984. Generates a clean digital signal four clock periods after the input has stabilized.
Die size 2400x2048 µm.

TimesVano G170DM - transient overvoltage protection : weekend die-shot

TimesVano G170DM can be found in wired phone line protection circuit. Can survive 350A current for 2µs, clamps both positive and negative voltage spikes.
Die size 3148x2292 µm.

TL432 - Shunt voltage reference : weekend die-shot

Manufacturer currently unknown. Difference between TL432 and TL431 is pinout.
Die size 810x662 µm.

RCA CD4035A - CMOS Shift Register : weekend die-shot

RCA CD4035A is a CMOS 4-Stage Parallel in / out Shift Register.
Die size 1733x1804 µm.

Zeptolab upgrade - March 2023

Thanks to the support of Zeptobars patrons - several vital hardware upgrades finally happened which will increase image quality and will make work more streamlined : custom wavelength RGB illuminator and 2-axis goniometer. Finally, we've also got Mastodon - @zeptobars@techhub.social - let's keep in touch there (just in case).


More details below:
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National LM3915N-1 - "Thermometer" LED driver : weekend die-shot

National LM3915N displays analog signal on LED bar with logarithmic 3 dB/steps. Multiple LM3915N's can be cascaded to expand display dynamic range.
Die size 2394x2545 µm.