DATAMATH CALCULATOR MUSEUM
|
|
DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| Clock Frequency vs External
Capacitor
of a µPD278 single-chip calculator circuit. DUT: µPD278C R61066 @ VDD = -4.5 V, VGG = -9.0 V.  |
| Clock Frequency vs VDD Supply Voltage
of a µPD278 single-chip calculator circuit. DUT: µPD278C R61066 @ VGG = -9.0 V, CEXT = 1,500 pF.  |
| Clock Frequency vs VGG Supply Voltage
of a µPD278 Series single-chip calculator circuit. DUT: µPD278C R61066 @ VGG = -9.0 V, CEXT = 1,500 pF.  |
If you have additions to the above article please email: joerg@datamath.org.
©