74F269SCX

Overview

The onsemi 74F269SCX is an 8-bit bidirectional binary counter housed in a 24-lead SOIC package. It supports synchronous counting and loading with a preset capability for programmable operation. The device features built-in lookahead carry for easy cascading and includes a U/D input to control the direction of counting. All state changes are initiated by the rising edge of the clock. Recommended operating conditions specify a supply voltage range of +4.5V to +5.5V and an ambient temperature range of 0°C to +70°C.

Feature Summary

• Synchronous counting and loading mechanism
• Built-in lookahead carry capability
• Programmable preset operation

Applications

• Bidirectional binary counting applications
• Programmable counter circuits
• Cascaded logic systems requiring lookahead carry

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm datasheet revision and package markings match specifications. Ensure environmental compliance requirements align with project standards before procurement.

Selection Notes

Select this component for designs requiring precise synchronous 8-bit up/down counting. Evaluate power consumption against system constraints, as typical supply current reaches 113mA. Verify that the 24-lead SOIC footprint fits the PCB layout and thermal management strategy.

Part Context

This part belongs to the 74F series of high-speed logic devices. It provides bidirectional counting functionality within a standard integrated circuit format suitable for general-purpose digital logic applications.

Replacement Considerations

Direct substitutes include other 8-bit bidirectional counters from compatible logic families. Verify pin compatibility and electrical characteristics before substitution.