74HC590D,118

Counter Dividers Overview

The Nexperia 74HC590D,118 is an 8-bit binary counter with a storage register and 3-state outputs. It operates within a supply voltage range of 2.0 V to 6.0 V and supports a maximum frequency of 61 MHz at 6.0 V. The device features separate positive edge-triggered clock inputs for the counter (CPC) and register (CPR), along with master reset (MRC) and count enable (CE) controls. It utilizes a 16-lead SO plastic small outline package (SOT109-1) and functions across an ambient temperature range of -40 °C to +125 °C.

Counter Dividers Feature Summary

• Features independent clock inputs for the counter and storage register, allowing flexible timing control.

Counter Dividers Applications

• Cascading for larger count chains

Counter Dividers Procurement Notes

Verify the specific ordering suffix

Counter Dividers Selection Notes

Select this component when an 8-bit counting solution with latched output storage is required. The availability of separate clocks for the counter and register allows precise synchronization management. Ensure the application environment remains within the specified -40 °C to +125 °C operating temperature range and that the supply voltage stays between 2.0 V and 6.0 V.

Counter Dividers Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Nexperia. It is functionally equivalent to other industry-standard 8-bit counters but offers specific packaging in the SO16 format. The device complies with JEDEC standards for both 2.7 V to 3.6 V and 2.0 V to 6.0 V operation, ensuring compatibility with various digital logic families.

Counter Dividers Replacement Considerations

Check for alternative packages such as TSSOP16 or DHVQFN16 if board space constraints differ. Verify pinout compatibility before substituting with generic 74HC590 equivalents from other manufacturers.

Counter Dividers FAQ

How are the counter and register synchronized?

The counter and storage register have separate positive edge-triggered clock inputs (CPC and CPR). If both clocks are connected together, the counter state is always one count ahead of the register.

What is the purpose of the RCO pin?

The RCO (Ripple Carry Output) is provided for cascading multiple counters. It connects to the Count Enable (CE) input of the next stage to expand the count chain.