74HC4059D,118

Counter Dividers Overview

The 74HC4059D,118 is a programmable divide-by-n counter manufactured by NXP USA Inc. It operates within the 74HC logic family using Si-gate CMOS technology and is housed in an SO24 plastic small outline package (SOT137-1). The device supports synchronous presettable down counting with four operating modes: timer, divide-by-n, divide-by-10 000, and master preset. It accepts input frequencies up to 40 MHz at 5 V supply voltage. Propagation delay from clock to output ranges from 17 ns to 43 ns depending on voltage and temperature conditions.

Counter Dividers Feature Summary

• Supports synchronous programmable division of input frequency by any integer value between 3 and 15,999.
• Features latchable outputs and master preset initialization capabilities for reliable system startup.
• Includes Schmitt-trigger action at the clock input to ensure tolerance against slow signal rise and fall times.
• Provides mode select control for initial decade counting functions including divide-by-10, 8, 5, 4, and 2.

Counter Dividers Applications

• Digital frequency synthesizer circuits for communication systems
• Phase-locked-loop (PLL) subsystems
• Fixed or programmable frequency division
• General purpose instrumentation totalizers and time-out timers

Counter Dividers Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the component meets RoHS compliance standards relevant to your manufacturing region. Ensure compatibility with existing PCB footprints for the SO24 package type before finalizing procurement decisions.

Counter Dividers Selection Notes

Select this component when a high-speed programmable divider is required for frequency synthesis applications. Consider the 74HCT4059 variant if TTL-compatible logic levels are necessary instead of standard CMOS levels. Evaluate the maximum clock frequency requirements against the supply voltage constraints specified in the datasheet.

Counter Dividers Part Context

This integrated circuit belongs to the 74HC/HCT4059 series of programmable divide-by-n counters. It serves as a high-speed alternative to the legacy 4000B series while maintaining pin compatibility. The device is designed for MSI category applications requiring flexible frequency division ratios in digital signal processing environments.

Counter Dividers Replacement Considerations

The 74HCT4059D,118 is a compatible variant within the same family offering TTL-compatible input thresholds. Other manufacturers may produce equivalent devices under different part numbers, but direct substitution requires verification of electrical characteristics and pinout alignment.