DM74LS90N

Counter Dividers Overview

The DM74LS90N is a monolithic decade and binary counter in a 14-lead Plastic Dual-In-Line (PDIP) package. It contains four master-slave flip-flops providing divide-by-two and divide-by-five counters. The device features gated zero reset and gated set-to-nine inputs for BCD nine’s complement applications. Recommended operating conditions specify a supply voltage of 4.75V to 5.25V and an operating temperature range of 0°C to +70°C.

Counter Dividers Feature Summary

• Contains four master-slave flip-flops configured as a divide-by-two counter and a three-stage binary counter with a divide-by-five count cycle.
• Includes gated zero reset and gated set-to-nine inputs to support BCD nine’s complement applications.

Counter Dividers Applications

• BCD counting
• Divide-by-two frequency division
• Divide-by-five frequency division

Counter Dividers Procurement Notes

Verify the manufacturer designation, as this part number was originally produced by Fairchild Semiconductor and is now under onsemi. Confirm the PDIP-14 package type matches the design requirements. Ensure the logic family specifications align with the system's TTL interface needs. Check for any specific ordering suffixes if tape and reel packaging is required instead of standard tube packaging.

Counter Dividers Selection Notes

Select this component when a combined decade and binary counter is needed within a single integrated circuit. It is suitable for systems requiring both divide-by-two and divide-by-five frequency division capabilities. Verify that the 14-pin PDIP package fits the board layout constraints. Ensure the operating temperature range meets the environmental conditions of the application.

Counter Dividers Part Context

The DM74LS90N belongs to the 74LS series of logic devices, which are Low-power Schottky TTL components. This series offers improved speed and power dissipation characteristics compared to standard 7400 series logic. The 'N' suffix indicates the 14-lead Plastic Dual-In-Line Package (PDIP).

Counter Dividers Replacement Considerations

SN74LS90N