SN74LS92DR2

Counter Dividers Overview

The SN74LS92DR2 is a high-speed 4-bit ripple-type counter manufactured by onsemi. It is partitioned into two sections: a divide-by-two section and a divide-by-six section, both triggered by HIGH-to-LOW transitions on clock inputs. These sections can operate independently or be cascaded to form BCD, bi-quinary, modulo-12, or modulo-16 counters. The device features low power consumption, typically 45 mW, and supports high count rates up to 42 MHz. It includes input clamp diodes to limit high-speed termination effects.

Counter Dividers Feature Summary

• Partitioned architecture with separate divide-by-two and divide-by-six sections for flexible counting modes
• Capable of forming BCD, bi-quinary, modulo-12, or modulo-16 counters when sections are tied together
• Includes input clamp diodes to manage high-speed termination effects

Counter Dividers Applications

• Digital timing circuits requiring specific division ratios
• Frequency divider applications in communication systems
• General-purpose binary or decimal counting logic

Counter Dividers Procurement Notes

Verify the manufacturer designation carefully, as the part number prefix 'SN' is historically associated with Texas Instruments, while the requested brand is onsemi. Confirm that the specific SN74LS92DR2 variant from onsemi matches the required LS-TTL specifications and package type before procurement to ensure compatibility with existing designs.

Counter Dividers Selection Notes

Select this component when a divide-by-twelve counter is required within a standard LS-TTL logic family. Consider the partitioned nature of the device if independent divide-by-two and divide-by-six functions are needed. Ensure the design accommodates the typical 42 MHz count rate and 45 mW power consumption constraints.

Counter Dividers Part Context

The SN74LS92 belongs to the SN54/74LS90 series of high-speed 4-bit ripple counters. This series is characterized by its ability to be configured in multiple counting modes through internal partitioning. The device is part of the broader TTL logic ecosystem, offering a balance of speed and power efficiency for digital counting applications.

Counter Dividers Replacement Considerations

Direct substitutes include the SN74LS92N and other variants from manufacturers like Motorola or Texas Instruments that share the same functional description and pinout. Verify electrical characteristics and package compatibility when substituting.