Product Overview: Texas Instruments 74HC161DBR
The Texas Instruments 74HC161DBR is a high-speed Si-gate CMOS device that is part of the 74HC/HCT family. This integrated circuit is a 4-bit binary counter with synchronous clear functionality designed to offer both count-up and data management capabilities. It's a versatile component that is widely used in a range of electronic applications such as timing circuits, frequency dividers, and in systems that require an interfacing counter to microprocessors.
Key Features
- Synchronous Counting: The 74HC161DBR provides synchronous counting which means that the output transitions occur on the rising edge of the clock signal, ensuring precise timing and control over the counting sequence.
- Asynchronous Clear: This device comes with an asynchronous master reset input (CLEAR) which, when set to high, resets all four flip-flops, thus setting the output to zero irrespective of the clock.
- Count Enable and Load Control: The counter can be enabled or disabled through the Count Enable inputs (CEP and CET), and parallel data can be loaded using the Load (LOAD) input, allowing for greater flexibility in operation.
- Expansion Capability: The counter features an output (RCO) that enables the cascading of multiple 74HC161DBR devices for applications requiring longer count sequences.
- Wide Operating Voltage: It operates over a wide voltage range from 2V to 6V, making it suitable for a variety of logic level requirements.
- Low Power Consumption: As a CMOS device, it boasts low power consumption, which is crucial for battery-powered and energy-efficient designs.
Applications
The 74HC161DBR is ideal for use in:
- Timing circuits
- Frequency division applications
- Counter/timer devices
- Sequential state machines
- Interface counters for microprocessors
Package and Quality
Enclosed in a SSOP-16 (Shrink Small Outline Package), the 74HC161DBR is designed to occupy minimal space on printed circuit boards. Texas Instruments is known for its commitment to quality, and this product is no exception, meeting high standards for reliability and performance. Whether for commercial or industrial applications, the 74HC161DBR from Texas Instruments is an excellent choice for designers seeking a robust and flexible binary counter solution.
