CD4020BNSR

Counter Dividers Overview

The CD4020BNSR is a 14-bit binary ripple-carry counter integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 18 V and supports a maximum counting rate of 24 MHz. The device features asynchronous reset functionality and negative-edge triggered flip-flops for upward counting sequences. It is housed in a 16-SOIC surface-mount package with a width of 5.30 mm. The component is rated for operation across an extended temperature range from -55°C to +125°C.

Counter Dividers Feature Summary

• Implements a 14-stage binary ripple-carry counting architecture using negative-edge triggered flip-flops.
• Provides asynchronous reset capability to clear the counter state independently of the clock signal.
• Supports upward counting sequences with a specified maximum operating frequency of 24 MHz.

Counter Dividers Applications

• Digital timing and sequencing circuits requiring long division ratios.
• Frequency division applications utilizing high-count stages.
• Industrial control systems operating within extended temperature environments.

Counter Dividers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage levels, as the device supports a wide range from 3 V to 18 V. Confirm that the 16-SOIC footprint matches the printed circuit board design. Check for RoHS compliance status if required by assembly standards.

Counter Dividers Selection Notes

Select this component when a single-chip solution for high-modulus binary counting is required. The 14-bit depth eliminates the need for cascading multiple smaller counters, reducing board space and propagation delay accumulation. Verify that the input signal meets the logic level requirements for the chosen supply voltage. Consider the 24 MHz speed limit when designing for high-frequency clock inputs.

Counter Dividers Part Context

This part belongs to the CD4000B series of CMOS logic devices produced by Texas Instruments. The CD4020B variant specifically provides 14-bit counting capabilities, distinguishing it from other members like the CD4017 (decade) or CD4024 (7-bit). The 'SR' suffix indicates the surface-mount SOIC packaging format. This series is designed for general-purpose digital logic applications requiring low power consumption and wide supply voltage tolerance.

Counter Dividers Replacement Considerations

Direct functional substitutes include the CD4020BE and CD4020BM96. These parts share identical logical operations and pin configurations but may differ in package style or manufacturing origin. Verify electrical characteristics such as propagation delay and noise immunity against the original datasheet before substitution.