Product Overview: 74HC161PW by NXP Semiconductors

The 74HC161PW is a high-speed Si-gate CMOS device from NXP Semiconductors, designed to operate as a 4-bit binary counter. It is a part of the 74HC series, which is well-known for its robust performance and compatibility with TTL (Transistor-Transistor Logic). This integrated circuit (IC) is particularly suitable for applications that require precise time delays, counting operations, and frequency division.

Key Features

• Logic Family: The device belongs to the 74HC family, which ensures high-speed operation while maintaining CMOS low power consumption.
• Counting Sequence: The 74HC161PW is capable of synchronous counting, providing accurate and reliable results for digital systems.
• Package: It comes in a TSSOP-16 (Thin Shrink Small Outline Package) which is conducive for space-constrained applications due to its slim and compact form factor.
• Operating Voltage: The device operates within a range of 2.0 to 6.0 V, making it versatile for use in various circuit designs and compatible with other logic levels.
• Output Capability: It can drive 15 LSTTL loads, ensuring compatibility with a wide range of digital components.
• Temperature Range: The IC is designed to function over a broad temperature range, from -40°C to +125°C, suitable for industrial applications.

Functional Description

The 74HC161PW is equipped with a 4-bit binary counter with a master reset. The counter advances on the rising edge of the clock (CLK) input when the clock enable (CE) input is low. The device also features a synchronous reset (MR) function, which allows the user to reset the counter to zero immediately, regardless of the state of the clock.

Applications

This counter IC is used across a wide array of applications, including:

• Timing circuits
• Frequency dividers
• Counter operations in microprocessor systems
• General purpose synchronous counting

The 74HC161PW from NXP Semiconductors is a reliable and efficient solution for designers looking to implement counting functions in their digital systems. With its robust feature set and compatibility with existing logic families, it stands as a versatile component for a multitude of electronic applications.