SN74ALS867ANTG4

Counter Dividers Overview

The SN74ALS867ANTG4 is a synchronous 8-bit up/down counter from the Texas Instruments 74ALS series. It features internal-carry look-ahead circuitry for cascading in high-speed counting applications. The device operates on a positive-going clock edge and supports parallel loading of data inputs A through H. It includes two count-enable inputs (ENP, ENT) and a ripple-carry output (RCO). The SN74ALS867A variant provides asynchronous clear functionality. Recommended operating conditions specify a supply voltage range of 4.5 V to 5.5 V and an operating temperature range of 0°C to 70°C.

Counter Dividers Feature Summary

• Synchronous operation with simultaneous flip-flop triggering eliminates output counting spikes associated with asynchronous counters.
• Internal carry look-ahead circuitry enables n-bit cascading without additional external gating logic.
• Fully programmable preset capability allows loading any binary value between 0 and 255 synchronously.

Counter Dividers Applications

• High-speed synchronous counting applications requiring cascaded multi-bit configurations
• Digital systems utilizing parallel load capabilities for immediate state setting
• Counters requiring independent clock circuits and direction control via select inputs

Counter Dividers Procurement Notes

Verify the specific suffix 'ANTG4' against current manufacturer documentation, as the primary datasheet references the 'NT' package designation. Confirm RoHS compliance status and lead finish specifications directly with Texas Instruments or authorized distributors, as ordering suffixes may impact material composition and environmental certifications.

Counter Dividers Selection Notes

Select this component when synchronous 8-bit counting with internal carry lookahead is required within the 74ALS family. Ensure the design accommodates the 4.5 V to 5.5 V supply voltage range. Consider the asynchronous clear feature of the SN74ALS867A variant if immediate reset without clocking is necessary compared to the synchronous clear found in other variants.

Counter Dividers Part Context

This part belongs to the SN54AS867/869 and SN74ALS867A/869 family of synchronous 8-bit up/down counters. The SN74ALS867A specifically denotes the commercial grade version with asynchronous clear, distinct from the SN74ALS869 which features synchronous clear. These devices are designed for standard industrial temperature ranges and utilize ALS logic technology for performance characteristics.

Counter Dividers Replacement Considerations

Public confirmed substitute part numbers include SN74ALS867ADW. Verify pinout compatibility and electrical characteristics before substitution.