Product Overview: 74HCT161D

The 74HCT161D is a high-speed Si-gate CMOS device from NXP Semiconductors, designed to operate in sync with TTL (Transistor-Transistor Logic) levels. This integrated circuit is a 4-bit binary counter with a synchronous reset feature, making it an essential component for a wide range of digital applications that require precise counting operations.

Key Features

• Synchronous Counting: The 74HCT161D offers synchronous counting which ensures accurate and reliable count sequences in digital circuits.
• Reset Function: It comes with an asynchronous master reset input (MR) that clears the counter to its zero state when a high level is applied, regardless of other inputs.
• Count Enable Inputs: Two count enable inputs (CEP and CET) control the counting. Both must be high to count, providing greater flexibility in controlling the counter operation.
• Output Capability: The counter features standard output drive capability, making it compatible with a broad range of digital components.
• Power Supply: It operates on a power supply voltage of 5V, typical for CMOS logic ICs, and is compatible with TTL supply levels.
• Package: The device is available in a standard SO-16 package, which is suitable for surface-mounted technology (SMT) and occupies minimal board space.

Applications

The 74HCT161D is used in digital systems that require counting functionality, such as:

• Timers and clocks
• Frequency dividers
• Event counters in data processing systems
• Sequential state machines

Quality and Reliability

NXP Semiconductors ensures that the 74HCT161D meets high-quality standards, providing reliable performance for industrial and commercial applications. The device is tested rigorously to comply with the stringent requirements of digital electronics systems.

Summary

The 74HCT161D from NXP is a versatile 4-bit binary counter, which is an indispensable component for designers looking to implement precise counting mechanisms in their digital systems. Its synchronous operation, combined with a straightforward reset function and flexible count enable inputs, make it a popular choice for a variety of counting applications.