74F193PC

Overview

The onsemi 74F193PC is a 4-bit binary synchronous up/down counter housed in a 16-lead Plastic Dual-In-Line (PDIP) package. It features separate Count Up and Count Down clock inputs for reversible operation. The device operates with a supply voltage range of 4.5V to 5.5V and supports a maximum count frequency of 125 MHz at +25°C. Propagation delays from clock inputs to outputs range from 3.5ns to 13.5ns depending on the specific path and temperature conditions.

Feature Summary

• Provides independent Count Up and Count Down clock inputs for synchronous reversible counting operations.
• Includes asynchronous Master Reset and Parallel Load capabilities for immediate state control.
• Features dedicated Terminal Count Up and Terminal Count Down outputs to facilitate multi-stage cascading without additional logic.

Applications

• Synchronous digital counters requiring independent up and down control signals
• Multi-stage counter designs utilizing terminal count outputs for clock chaining
• Programmable counter applications using parallel load inputs

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the 16-lead PDIP package matches the required footprint. Ensure the operating environment stays within the specified 0°C to +70°C temperature range and 4.5V to 5.5V supply voltage limits to maintain performance specifications.

Selection Notes

Select this component when synchronous up/down counting with separate clock lines is required. It is suitable for designs needing asynchronous preset and reset functions. Consider the 16-lead PDIP package for through-hole mounting requirements. Verify that the propagation delay characteristics meet the timing constraints of the target application.

Part Context

The 74F193 belongs to the 74F series of high-speed logic devices. It is functionally compatible with other standard TTL-compatible counters but offers distinct separate clock inputs for up and down operations. The PDIP package provides a robust solution for general-purpose digital logic applications requiring reliable binary counting.

Replacement Considerations

Direct substitutes include the Fairchild Semiconductor 74F193SC and 74F193SJ, which offer alternative surface-mount packages while maintaining identical electrical functionality and pinout compatibility.