SN74LS693N

Counter Dividers Overview

The SN74LS693N is a synchronous binary counter and divider integrated circuit manufactured by Texas Instruments. It features dual 4-bit counters with output registers and multiplexed 3-state outputs, designed for high-speed digital applications. The device operates at frequencies up to 20 MHz and requires a standard 5V supply voltage. Packaged in a 16-pin DIP format, it utilizes LS-TTL technology to provide low power consumption and high noise immunity. The component supports industrial operating temperatures ranging from 0°C to 70°C, ensuring reliability in various electronic systems requiring precise frequency division and counting functions.

Counter Dividers Feature Summary

• Dual 4-bit synchronous binary counters with dedicated output registers
• Multiplexed 3-state outputs for efficient bus interfacing
• High-speed operation capability up to 20 MHz
• Low power consumption with high noise margin characteristics

Counter Dividers Applications

• Frequency division circuits in communication systems
• Industrial control boards and PLC input modules
• Frequency measurement instrumentation

Counter Dividers Procurement Notes

Verify RoHS compliance status as the SN74LS693N may be non-compliant with current environmental directives. Confirm package integrity and pin configuration upon receipt. Ensure storage conditions respect the specified moisture sensitivity level (MSL 3) to prevent damage before soldering. Cross-reference datasheet revisions to guarantee functional compatibility with existing designs.

Counter Dividers Selection Notes

Select this component when dual independent 4-bit counting or frequency division is required within a single package. The multiplexed 3-state outputs reduce pin count requirements compared to parallel output alternatives. Consider the LS-TTL logic family constraints regarding voltage levels and drive capabilities. Verify that the 20 MHz maximum frequency meets the system timing requirements.

Counter Dividers Part Context

This part belongs to the Texas Instruments SN74LS series of logic devices, specifically categorized under counters and dividers. It complements other LS-series components by providing synchronized counting functionality with registered outputs. The 'N' suffix typically denotes the plastic DIP package variant. It serves as a foundational building block for digital timing and sequencing applications within legacy and industrial TTL-based systems.

Counter Dividers Replacement Considerations

Direct substitutes include the SN74LS693 without the 'N' suffix if package differences are acceptable. Other compatible LS-series counters such as the SN74LS163 may serve similar functions but lack the specific multiplexed output architecture. Verify pinout compatibility before substitution to ensure proper circuit integration.