74VHC4040M – FSC

Overview

The FSC 74VHC4040M is a high-speed 12-stage ripple counter designed for advanced digital systems, achieving a maximum clock frequency (fMAX) of 210MHz at VCC = 5V. Its silicon gate CMOS fabrication offers a compelling balance between rapid switching speeds, comparable to bipolar Schottky TTL, and the inherent low power dissipation of CMOS technology, with a quiescent current (ICC) of only 4µA at 25°C. A critical design consideration for this device is its robust input protection circuitry, which allows for 0V to 7V on inputs irrespective of the supply voltage, preventing damage in mixed-voltage environments, a common trade-off in interfacing diverse logic families.

Key Features

• High Speed Operation: fMAX = 210MHz (VCC = 5V)
• Low Power Dissipation: ICC = 4µA (Max.) at TA = 25°C
• High Noise Immunity: VNIH = VNIL = 28% VCC (Min.)
• Wide Operating Voltage Range: VCC (Opr.) = 2V – 5.5V
• Input Protection: 0V to 7V tolerant
• Package: 16-pin SOIC (10.3mm x 7.5mm)

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.

• High-frequency digital signal division and timing generation
• Event counting in high-speed data acquisition systems
• Frequency synthesis and waveform shaping circuits
• Power sequencing and delay generation in complex control logic