CD4541BMT

Overview

The CD4541BMT is a CMOS programmable timer integrated circuit manufactured by Texas Instruments. It features a single internal timer with a maximum propagation delay of 10,500 ns and operates within a supply voltage range of 3 V to 18 V. The device provides high-level and low-level output currents of 4 mA each, with a typical operating supply current of 300 µA. Designed for surface-mount applications, it is housed in a 14-SOIC package and supports an operating temperature range from -55 °C to +125 °C.

Feature Summary

• CMOS Programmable Timer with 1 internal timer channel
• Supply Voltage Range: 3 V to 18 V
• Operating Temperature: -55 °C to +125 °C
• Package: 14-SOIC (Surface Mount)

Applications

• Timing circuits requiring programmable intervals
• Clock generation systems
• Industrial control logic timing

Procurement Notes

Verify the specific suffix 'MT' corresponds to the 14-SOIC surface-mount package and reel/cut-tape packaging options. Confirm RoHS compliance status as indicated in official datasheets, noting potential variations between standard and lead-free variants such as BMTE4. Ensure the supplier documentation matches the Texas Instruments manufacturer part number exactly.

Selection Notes

Select this component when a surface-mount solution is required for programmable timing functions. Compare against through-hole alternatives like the CD4541BE if PCB layout constraints differ. Verify that the 100 kHz frequency specification and 65,536 count capability meet the system's timing resolution requirements.

Part Context

The CD4541BMT belongs to the CD4541B series of CMOS programmable timers. It serves as the surface-mount variant of the CD4541BM, offering identical electrical characteristics but optimized for automated assembly processes. This part is widely used in applications necessitating reliable timing signals in compact electronic designs.

Replacement Considerations

The MC14541BF from onsemi is listed as a similar alternative, though it is marked as obsolete. Other TI variants include CD4541BM and CD4541BM96. Verify pin compatibility and electrical specifications before substituting.