File:Elektron Analog Four Controls (8419385134).jpg

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A neat row of NXP HC373 tri-state Octal latches between the selection buttons and the keyboard buttons.

Presumably, these are used to store/latch the button state when a button is pressed, and are then scanned by the microprocessor. The encoders are also buttons, so I'm not sure if the lines going up to the encoders are for the encoder values, the button clicks, or both.

In either case, latches are commonly used to store states and to debounce a button circuit.

<a href="http://www.mouser.com/ds/2/87/BUS_Elx_PM_4301_VERSA_PAC-38497.pdf" rel="nofollow">www.mouser.com/ds/2/87/BUS_Elx_PM_4301_VERSA_PAC-38497.pdf</a>
Date
Source Elektron Analog Four Controls
Author Pete Brown from Gambrills, MD, USA

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by Psychlist1972 at https://flickr.com/photos/34452246@N02/8419385134 (archive). It was reviewed on 9 August 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

9 August 2019

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current14:12, 9 August 2019Thumbnail for version as of 14:12, 9 August 20193,264 × 2,456 (2.25 MB)Meisam (talk | contribs)Transferred from Flickr via #flickr2commons

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