74HCT4017D,652

Counter Dividers Overview

The 74HCT4017D,652 is a high-speed Si-gate CMOS Johnson decade counter with 10 decoded active HIGH outputs (Q0 to Q9) and an active LOW carry output (Q5-9). It features two clock inputs (CP0 and CP1) and an overriding asynchronous master reset input (MR). The device operates within a supply voltage range of 4.5 V to 5.5 V and supports ambient temperatures from -40 °C to +125 °C. It is housed in a 16-lead SO plastic small outline package (SOT109-1) with a body width of 3.9 mm.

Counter Dividers Feature Summary

• Features dual clock inputs allowing count advancement via LOW-to-HIGH transitions on CP0 or HIGH-to-LOW transitions on CP1.
• Includes automatic code correction circuitry that returns the counter to a proper counting mode within 11 clock pulses following any illegal code.
• Provides ESD protection exceeding 2000 V for Human Body Model and 1000 V for Charged Device Model.
• Inputs include clamp diodes enabling interface to voltages in excess of VCC using current limiting resistors.

Counter Dividers Applications

• Decade counters with decimal decoding
• Sequential controllers
• Timers

Counter Dividers Procurement Notes

Verify the manufacturer designation as Nexperia B.V., which acquired NXP's standard products division. Confirm the specific ordering suffix

Counter Dividers Selection Notes

Select this component when TTL-compatible logic levels are required at 5 V operation. The HCT series ensures compatibility with standard TTL inputs while maintaining CMOS low power dissipation characteristics. Ensure the application environment remains within the specified -40 °C to +125 °C temperature range for optimal performance.

Counter Dividers Part Context

This part belongs to the 74HCT family of high-speed CMOS logic devices. It is pin-compatible with the HEF4017 series but offers faster switching speeds and TTL-compatible input thresholds. The device is manufactured by Nexperia, continuing the lineage of NXP Semiconductors' standard logic portfolio.

Counter Dividers Replacement Considerations

74HC4017D,652

Counter Dividers FAQ

How does the counter advance states?

The counter advances by a LOW-to-HIGH transition at CP0 while CP1 is LOW, or a HIGH-to-LOW transition at CP1 while CP0 is HIGH.

What is the function of the Q5-9 output?

The Q5-9 output is active LOW while the counter is in states 5, 6, 7, 8, and 9. It can be used to drive the CP0 input of the next counter when cascading.