CD74HC4040M – TEXAS INSTRUMENTS

Overview

The TEXAS INSTRUMENTS CD74HC4040M is a high-speed 12-bit asynchronous binary counter designed for robust digital signal processing. Its primary function is to increment its count state on each detected negative edge of the clock input, offering a versatile solution for frequency division and sequential event tracking. A critical design consideration when integrating this obsolete part is its susceptibility to clock glitches; designers must implement careful clock signal conditioning to prevent unintended state transitions, a common trade-off in high-speed CMOS logic where noise immunity is paramount.

Key Features

• 12-bit asynchronous binary counter
• Up-counting logic
• 35 MHz maximum count rate
• 2V to 6V supply voltage range
• -55°C to 125°C operating temperature
• 16-SOIC (0.154″, 3.90mm Width) package

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Frequency division in digital signal processing chains
• Sequential event timing in control systems
• Pulse counting for data acquisition modules
• Generating timing sequences for embedded microcontrollers