SN74LS193NE4

Counter Dividers Overview

The SN74LS193NE4 is a synchronous 4-bit up/down binary counter manufactured by Texas Instruments. It operates within the LS logic series and features independent clock inputs for up-counting and down-counting operations. The device includes asynchronous clear functionality and parallel data load capabilities. It is housed in a 16-pin PDIP package designed for through-hole mounting. The component supports a supply voltage range of 4.75 V to 5.25 V and functions reliably across an operating temperature range of 0°C to +70°C.

Counter Dividers Feature Summary

• Synchronous 4-bit bidirectional counting with separate up and down clock inputs
• Asynchronous master reset and parallel data loading capability
• Compatible with standard TTL logic levels

Counter Dividers Applications

• Digital frequency division circuits
• Time-base generators for digital clocks
• Position control systems requiring bidirectional counting

Counter Dividers Procurement Notes

Verify the presence of the E4 suffix, which indicates lead-free construction and RoHS compliance. Confirm the package type matches the required PCB footprint. Ensure the supplier provides valid traceability documentation. Check for any specific handling requirements related to moisture sensitivity during storage and assembly processes.

Counter Dividers Selection Notes

Select this component when synchronous bidirectional counting is required within standard TTL environments. It serves as a direct replacement for the non-E4 variant if lead-free compliance is mandatory. Consider the power consumption characteristics typical of the LS series against system thermal constraints. Verify that the input voltage levels align with the driving logic family.

Counter Dividers Part Context

This part belongs to the Texas Instruments SN74LS193 family of synchronous counters. The SN74LS193N is the standard leaded equivalent, while the SN74LS193NE4 denotes the environmentally friendly version. Both share identical electrical specifications and pinouts. The NE4 designation specifically addresses regulatory compliance for restricted substances in electronic equipment.

Counter Dividers Replacement Considerations

• SN74LS193N