CD40117BM

Specialty Logic Overview

The CD40117BM is a CMOS dual decade counter/divider integrated circuit manufactured by Texas Instruments. It contains two independent decade counters, each featuring ten decoded outputs and asynchronous reset functionality. The device operates within a supply voltage range of 3V to 18V and supports clock frequencies up to 5.5 MHz at 10V. It is available in surface-mount packages including SOIC-14 and TSSOP-14, with an operating temperature range spanning from -55°C to +125°C.

Specialty Logic Feature Summary

• Dual decade counter architecture providing two independent counting channels
• Ten decoded outputs per channel for direct driving of display or control logic
• Asynchronous reset capability for immediate output clearing

Specialty Logic Applications

• Digital sequencing circuits
• Decoded division applications
• Event counting systems

Specialty Logic Procurement Notes

Verify the specific package suffix (M, MT, M96, NSR) against the datasheet to confirm the physical footprint and pinout. Ensure the selected variant matches the required operating temperature range and RoHS compliance status for the target assembly process.

Specialty Logic Selection Notes

Select this component when a design requires two separate decade counters on a single chip. Verify that the load capacitance requirements are met to maintain the specified maximum clock frequency. Confirm that the power supply voltage remains within the 3V to 18V operational limits.

Specialty Logic Part Context

This part belongs to the CD4000B series of CMOS logic devices. It serves as a dual-channel alternative to single-decade counters like the CD4017B. The BM designation indicates a surface-mount small-outline package variant within the broader CD40117B family.

Specialty Logic Replacement Considerations

CD40117BE (Plastic DIP version)

Specialty Logic FAQ

What is the maximum clock frequency supported by the CD40117BM?

The maximum clock frequency is 5.5 MHz when operating at a supply voltage of 10V.

How many decoded outputs does each counter provide?

Each of the two internal decade counters provides ten decoded outputs.