SN74ALS561ANE4

Counter Dividers Overview

The SN74ALS561ANE4 is a synchronous 4-bit binary counter with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports clock frequencies up to 30 MHz. The device features asynchronous and synchronous clearing, as well as asynchronous and synchronous loading capabilities. It includes internal look-ahead circuitry for fast cascading and provides carry outputs (RCO and CCO) for multi-bit expansion. The component is housed in a 20-pin Plastic Dual In-Line Package (PDIP) and is characterized for operation over an ambient temperature range of 0°C to 70°C.

Counter Dividers Feature Summary

• Supports both asynchronous and synchronous clearing and loading functions for flexible data control.
• Features buffer-type 3-state outputs capable of directly driving bus lines.
• Includes internal look-ahead circuitry designed to facilitate high-speed cascading operations.

Counter Dividers Applications

• Synchronous binary counting applications
• Multi-bit counter cascading systems
• Bus interface logic circuits

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'E' against current manufacturer documentation to confirm compliance with environmental directives such as RoHS standards. Ensure that the selected package variant matches the required PCB footprint and thermal management specifications for the intended application environment.

Counter Dividers Selection Notes

Select this component when designing systems requiring precise synchronous timing control alongside asynchronous initialization capabilities. Consider its 3-state output configuration if direct interfacing with shared data buses is necessary. Evaluate the maximum operating frequency limits relative to the system clock requirements to ensure signal integrity across the full specified temperature range.

Counter Dividers Part Context

This part belongs to the SN54/74ALS series of logic integrated circuits produced by Texas Instruments. The ALS designation indicates Advanced Low-power Schottky technology, which offers improved speed and power consumption characteristics compared to standard LS logic families. The SN74 prefix denotes commercial grade temperature ratings suitable for general industrial and consumer electronics applications.

Counter Dividers Replacement Considerations

Compatible substitutes include the SN74ALS561AN and SN74ALS561ANG4. Verify pinout compatibility and electrical parameter alignment before implementation.