74HCT4060

The 74HCT4060 is high-speed Si-gate CMOS devices and are pin compatible with "4060" of the "4000B" series. They are specified in compliance with JEDEC standard no. 7A.

The 74HCT4060 is 14-stage ripple-carry counter/dividers and oscillators with three oscillatorterminals (RS, R_TC and C_TC), ten buffered outputs (Q₃ to Q₉ and Q₁₁ to Q₁₃) and an overriding asynchronous master reset (MR).

The oscillator configuration of the 74HCT4060 allows design of either RC or crystal oscillator circuits. The oscillator may be replaced by
an external clock signal at input RS. In this case keep the other oscillator pins (R_TC and C_TC) floating.

The counter advances of the 74HCT4060 on the negative-going transition of RS. A HIGH level on MR resets the counter (Q₃ to Q₉ and
Q₁₁ to Q₁₃ = LOW), independent of other input conditions.

In the HCT version, the MR input is TTL compatible, but the RS input has CMOS input switching levels and can be driven by a TTL output by using a pull-up resistor to V_CC.