74HCT4059D,112

Counter Dividers Overview

The 74HCT4059D,112 is a programmable divide-by-n counter in the 74HCT logic family. It features synchronous operation and supports four modes: timer, divide-by-n, divide-by-10,000, and master preset. The device divides input frequency by any integer from 3 to 15,999 using JAM inputs for presetting. It operates on a supply voltage of 2 V to 6 V with a maximum clock frequency of 40 MHz at 5 V. The component utilizes Schmitt-trigger action at the clock input for noise tolerance and includes latchable output functionality.

Counter Dividers Feature Summary

• Synchronous programmable divide-by-n counter with master preset initialization
• Four operating modes including timer, divider-by-n, divide-by-10,000, and master preset
• Schmitt-trigger action at the clock input for high tolerance to slow rise/fall times
• Latchable output capability controlled by the latch enable input

Counter Dividers Applications

• Frequency synthesizer circuits for communication systems
• Fixed or programmable frequency division
• Time out timers and general purpose counting

Counter Dividers Procurement Notes

Verify the specific ordering suffix '112' against current manufacturer documentation to confirm package type and tape/reel specifications. Confirm that the 74HCT4059D variant meets the required HCT logic level compatibility for the target application interface. Ensure the DIP-to-SO transition does not impact thermal management requirements.

Counter Dividers Selection Notes

Select this component when a programmable divide-by-n function is required within a 74HCT logic system. It is suitable for applications needing precise frequency division between 3 and 15,999. Consider the 40 MHz maximum clock frequency limit and the 2 V to 6 V supply range. Use when Schmitt-trigger inputs are necessary to handle slower clock signals.

Counter Dividers Part Context

This part belongs to the 74HCT4059 series of programmable counters. It is pin-compatible with the older 4000B series 4059 devices but offers higher speed due to Si-gate CMOS technology. The D suffix indicates a plastic small outline package (SO24), distinguishing it from the through-hole DIP variants.

Counter Dividers Replacement Considerations

Direct functional replacements include other 74HCT4059 variants such as the 74HCT4059N. Verify package compatibility when substituting SO packages with DIP packages. Cross-reference with 74HC4059 if HCT logic levels are not strictly required.