CD4541BCMX

Overview

The CD4541BCMX is a programmable timer and frequency divider manufactured by onsemi (formerly Fairchild Semiconductor). It integrates a 16-stage binary counter, an RC oscillator, output control logic, and a power-on reset circuit. The device operates within a supply voltage range of 3.0V to 15V and supports division ratios of 2^8, 2^10, 2^13, or 2^16. It increments on positive clock edges and features a built-in low-power RC oscillator with frequencies ranging from DC to 100 kHz. The component is housed in a 14-lead Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Built-in low power RC oscillator with ±2% accuracy over temperature at < 10 kHz
• Four digitally controlled division ratios: 2^8, 2^10, 2^13, or 2^16
• Automatic power-on reset initializes counters without additional static power consumption
• Q/Q select pin provides flexible output logic level configuration

Applications

• Frequency division circuits
• Programmable timing applications
• Clock signal generation using external RC networks

Procurement Notes

Verify the ordering code suffix 'X' indicates tape and reel packaging as specified in the datasheet. Confirm the manufacturer origin is onsemi/Fairchild Semiconductor. Ensure the SOIC-14 package matches the M14A designation for physical compatibility.

Selection Notes

Select this component when a CMOS programmable timer with a wide supply voltage range (3V–15V) is required. It is suitable for designs needing specific binary division ratios or single-cycle operation modes. Verify that the maximum operating temperature of +125°C meets the environmental requirements.

Part Context

This part belongs to the CD4541BC family of programmable timers. The 'M' suffix denotes the 14-lead SOIC package, while 'X' specifies tape and reel shipping. It is functionally equivalent to other CD4541 variants but distinguished by its surface-mount packaging format.

Replacement Considerations

Compatible replacements include the CD4541BE and CD4541BMT. Verify package type differences; the BE uses PDIP and BMT uses SOIC. Ensure electrical characteristics such as supply voltage and propagation delay align with the design specifications.