Source: https://web.archive.org/web/20210427164138/https://twitter.com/Siliconinsid/status/1368626459800113155
Text: Signetics NE567 (1988)
General purpose tone and frequency decoder with phase locked loop. A darkfield illumination version of the same die that @Zeptobars has posted today
#Silicondie #NE567

Package

Die