MC14541BDTR2G

Programmable Timers And Oscillators Overview

The MC14541BDTR2G is a programmable timer IC manufactured by onsemi, housed in a TSSOP-14 surface-mount package. It integrates a 16-stage binary counter, an RC oscillator, and power-on reset logic. The device operates within a supply voltage range of 3.0 Vdc to 18 Vdc. Key electrical parameters include a maximum propagation delay of 10,500 ns (at 5V), a maximum operating frequency of 6.0 MHz, and a quiescent current of up to 20 µA at 10 V. Output drive capabilities reach 19.3 mA sink and -16.3 mA source currents.

Programmable Timers And Oscillators Feature Summary

• Integrates a 16-stage binary counter with selectable outputs at stages 2^8, 2^10, 2^13, or 2^16 via Mode pins A and B.
• Includes a built-in low-power RC oscillator with external timing components, or supports an external clock input on Pin 3.
• Features automatic power-on reset initialization and an independent external Master Reset pin.
• Provides Q/Q Select functionality to determine output logic level (high or low) immediately following a reset condition.

Programmable Timers And Oscillators Applications

• Digital timer circuits requiring precise single-cycle or recycle mode operation.
• Frequency divider applications utilizing the internal 16-stage counter.
• Systems requiring automatic initialization upon power-up without external reset circuitry.
• Clock conditioning for signals with slow rise and fall times.

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'DT' confirms the TSSOP-14 package variant, as the MC14541B family includes SOIC-14 and SOEIAJ-14 options. Confirm RoHS compliance status and Pb-Free marking ('/C0071') if required for assembly processes. Check for discontinued status of related prefixes like NLV14541BDTR2G if automotive qualification is not strictly necessary, ensuring the standard commercial grade meets project requirements.

Programmable Timers And Oscillators Selection Notes

Select this component when a CMOS programmable timer with integrated oscillator is needed in a compact surface-mount form factor. Ensure the application voltage stays within the 3V to 18V range. Consider the 10,500 ns maximum propagation delay for high-speed timing constraints. Verify that the TSSOP-14 thermal dissipation characteristics (500 mW max) are sufficient for the ambient temperature conditions, which range from -55°C to +125°C.

Programmable Timers And Oscillators Part Context

This part belongs to the MC14541B series of programmable timers. The 'D' indicates the SOIC-14 package base type, while 'T' denotes tape-and-reel shipping. The 'R2G' suffix typically signifies RoHS compliance and lead-free packaging. Other variants in the family include MC14541BDG (SOIC-14 rail) and MC14541BFELG (SOEIAJ-14).

Programmable Timers And Oscillators Replacement Considerations

Direct pin-compatible replacements within the same package include MC14541BDG (SOIC-14) if package adaptation is acceptable. For automotive applications requiring unique site control, verify availability of NLV-prefix parts, though some may be discontinued. Generic 4000-series CMOS counters do not offer the integrated oscillator and auto-reset features.