name: uPD858 function: Phase Locked Loop package: 24 pin DIP,24 manufacturer: ? added-by: Jim Frank comment: CB Radio synthesizer +--()--+ lock detector 1=locked | 1 24| Programmable divider output output | 2 23| GND active loop filter input | 3 22| P9 active loop filter output | 4 21| P8 output | 5 20| P7 referencedivider output | 6 19| P6 freq. step 1=10 Khz, 0=5 Khz | 7 18| P5 1/2 reference osc. freq. | 8 17| P4 reference osc. input | 9 16| P3 reference osc. output |10 15| P2 programmable divider input |11 14| P1 +vdc |12 13| P0 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/