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Additional Pictures 

 

Clock Frequency vs External Capacitor of a HD3633 single-chip calculator circuit.
DUT: HD3633 5A 41 @ VDD = -7.0 V, VGG = -15.0 V.

Clock Frequency vs VDD Supply Voltage of a HD3633 single-chip calculator circuit.
DUT: HD3633 5A 41 @ VGG = -15.0 V, CEXT = 180 pF.

Clock Frequency vs VGG Supply Voltage of a HD3633 single-chip calculator circuit.
DUT: HD3633 5A 41 @ VDD = -7.0 V, CEXT = 180 pF.


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© Joerg Woerner, November 10, 2024. No reprints without written permission.