CD40117BPW

Specialty Logic Overview

The CD40117BPW is a CMOS dual 4-bit serial-in/serial-out shift register manufactured by Texas Instruments. It operates within a supply voltage range of 3V to 18V and supports clock frequencies up to 5 MHz at 10V. The device features synchronous parallel load capability, allowing data to be loaded into all stages simultaneously. It includes dedicated outputs for the least significant bit (Q0) and most significant bit (Q3), as well as ripple carry outputs for cascading multiple devices. The component is housed in a 14-lead thin shrink small-outline package (TSSOP) and is rated for an operating temperature range from -55°C to 125°C.

Specialty Logic Feature Summary

• Dual independent 4-bit serial-in/serial-out shift registers
• Synchronous parallel load functionality for simultaneous data entry
• Dedicated Q0 and Q3 outputs alongside ripple carry outputs
• Supports cascading configurations via ripple carry connections

Specialty Logic Applications

• Data storage and transfer applications
• Parallel-to-serial and serial-to-parallel conversion circuits
• Cascaded shift register systems requiring extended bit depth

Specialty Logic Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the base part number covers multiple physical form factors including PDIP, SOIC, and TSSOP. Confirm RoHS compliance status and moisture sensitivity level requirements against current TI documentation before finalizing procurement orders.

Specialty Logic Selection Notes

Select this component when a design requires two independent 4-bit shift registers on a single chip. Ensure the application logic aligns with the synchronous parallel load feature rather than asynchronous loading. Verify that the maximum clock frequency specifications are compatible with the system's operational speed requirements.

Specialty Logic Part Context

This component belongs to the CD4000B series of CMOS logic integrated circuits produced by Texas Instruments. The series encompasses various logic functions including counters, gates, and shift registers designed for general-purpose digital applications. The CD40117B specifically provides dual shift register functionality within the standard 4000B family architecture.

Specialty Logic Replacement Considerations

CD40117BE

Specialty Logic FAQ

How does the parallel load function operate?

The parallel load function is synchronous, meaning data present on the parallel input pins is transferred to the flip-flop stages simultaneously upon the active transition of the clock signal.

What is the purpose of the ripple carry output?

The ripple carry output facilitates the cascading of multiple CD40117B devices, allowing the shift register chain to extend beyond four bits by connecting the carry output of one stage to the clock or control input of the next.