View mc145146 datasheet:

MOTOROLA Order this document by MC145146–2/D SEMICONDUCTOR TECHNICAL DATA MC145146-2 4-Bit Data Bus Input PLL Frequency Synthesizer P SUFFIX PLASTIC DIP Interfaces with Dual–Modulus Prescalers CASE 738 20 1 The MC145146–2 is programmed by a 4–bit input, with strobe and address lines. The device features consist of a reference oscillator, 12–bit program- mable reference divider, digital phase detector, 10–bit programmable divide– by–N counter, 7–bit divide–by–A counter, and the necessary latch circuitry for DW SUFFIX accepting the 4–bit input data. When combined with a loop filter and VCO, the 20 SOG PACKAGE MC145146–2 can provide all of the remaining functions for a PLL frequency CASE 751D synthesizer operating up to the device frequency limit. For higher VCO 1 freq