
STV224X, STV228X, STV223X - INPUT/OUTPUT SCHEMATIC DIAGRAMS
Figure 47. Half Contrast Input
VCC2 (8 V)
) FBOSD/HC
t(s Pin 37 (SDIP56)
GND2
roduc GND2
GND2
GND2
lete P Figure 48. 3.5X MHz Crystal or Bell Filter Tuning Capacitor
so VCC1 (8 V)
VCCD (5 V)
b XTAL3/BTUN
O Pin 38 (SDIP56)
GND2
GND2
t(s) - GND1
roduc GND1
bsolete P GND1
GND1
GND1 GND1
GND1
73/86