The TC74VHC161F is a high-speed CMOS 4-Bit Binary Counter manufactured by Toshiba Semiconductor and Storage. This synchronous counter features a synchronous clear input and a count enable input for versatile counting applications. The device is fabricated with silicon gate CMOS technology, providing high-speed operation and low power consumption.

Applications:

• Frequency dividers
• Address counters
• Timing circuits
• Sequence generators
• Digital clocks

Features:

• High-speed operation: fMAX = 120 MHz (typ.) at VCC = 5 V
• Synchronous counting and loading
• Carry look-ahead for easy cascading
• Synchronous clear input
• Count enable input
• Low power dissipation: ICC = 4 μA (max) at VCC = 5 V
• Wide operating voltage range: VCC = 2 V to 5.5 V

Benefits:

• High-speed counting capability, enabling use in high-frequency applications.
• Synchronous operation simplifies system design and eliminates timing skew issues.
• Easy cascading allows for creating counters with larger bit widths.
• Low power consumption minimizes heat dissipation and extends battery life in portable applications.
• Versatile application range due to the wide operating voltage range.

Additional Details:

The TC74VHC161F is supplied in a SOIC package. The counter increments on the positive transition of the clock when the Count Enable (ENP, ENT) inputs are LOW. A LOW level on the Synchronous Clear (CLR) input sets all outputs LOW regardless of the clock. The Load (LOAD) input, when LOW, asynchronously loads the data from the Data inputs into the counter. The device operates over a wide temperature range, making it suitable for various industrial and commercial applications.