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14?Stage Binary Ripple Counter With Oscillator

High–Performance Silicon–Gate CMOS

The MC74HC4060A is identical in pinout to the standard CMOS MC14060B. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL

outputs.

This device consists of 14 master?slave flip?flops and an oscillator with a frequency that is controlled either by a crystal or by an RC circuit connected externally. The output of each flip?flop feeds the next and the frequency at each output is half of that of the preceding one. The state of the counter advances on the negative?going edge of the Osc In. The active?high Reset is asynchronous and disables the oscillator to allow very low power consumption during stand?by

operation.

State changes of the Q outputs do not occur simultaneously because of internal ripple delays. Therefore, decoded output signals are subject to decoding spikes and may have to be gated with Osc Out 2 of the HC4060A.

Features

? Output Drive Capability: 10 LSTTL Loads

? Outputs Directly Interface to CMOS, NMOS, and TTL

? Operating Voltage Range: 2.0 to 6.0 V

? Low Input Current: 1 μA

? High Noise Immunity Characteristic of CMOS Devices

? In Compliance With JEDEC Standard No. 7A Requirements

? Chip Complexity: 390 FETs or 97.5 Equivalent Gates

? Pb?Free Packages are Available*