Product Overview: 74HCT163D from NXP

The 74HCT163D is a high-performance integrated circuit produced by NXP Semiconductors, renowned for its reliability and efficiency in digital applications. This particular IC is part of the 74HCT series, which is compatible with TTL levels and known for its high-speed CMOS technology. The 74HCT163D is a synchronous presettable binary counter that features an internal look-ahead carry for fast counting while operating in a wide voltage range.

Key Features

• Logic Type: 4-bit synchronous binary counter
• Output Capability: Standard
• ICC Category: MSI
• Supply Voltage Range: 4.5V to 5.5V
• High-Speed Performance: 40 MHz (typical) at 5V
• Low Power Consumption: 80 µA (max) at 5V
• Operating Temperature: -40°C to +125°C
• Packaging: SO16; SOT109-1

Functional Description

The 74HCT163D is designed for synchronous counting operations. It incorporates a four-bit binary counter with synchronous clear and preset features. The counter advances on the rising edge of the clock (CLK) input when the clock enable (CEP and CET) inputs are both low. The counter can be cleared to zero by a high on the synchronous reset (MR) input independent of the clock. Additionally, the device can be preset to a desired value when the parallel load (PL) input is low. The look-ahead carry output facilitates cascading of multiple counters to create extended counting ranges without significant delay.

Applications

This versatile counter is suitable for a wide range of applications, including:

• Frequency counters
• Time measurement and event counting
• System clocks for microprocessors and microcontrollers
• Sequential state machines
• Interface and logic conversion circuits

The 74HCT163D from NXP is a reliable and efficient choice for designers looking for a synchronous counter with high-speed operation and compatibility with TTL signal levels. Its robust feature set ensures that it can be integrated into various digital systems requiring precise counting and timing solutions.