Product Overview: CD74HC190E from Texas Instruments

The CD74HC190E is a high-performance integrated circuit designed and manufactured by Texas Instruments, a leader in semiconductor solutions. This device belongs to the HC family of logic counters, which are known for their high-speed operation and compatibility with most CMOS, NMOS, and TTL logic levels.

Key Features

• Type: 4-bit synchronous reversible up/down binary counter
• Logic Family: HC
• Output Type: Differential
• Operating Voltage Range: 2 V to 6 V
• Counting Sequence: Up/Down
• Propagation Delay Time: 13 ns at 4.5 V
• Operating Temperature Range: -55°C to 125°C
• Mounting Type: Through Hole
• Package / Case: PDIP-16

Functional Description

The CD74HC190E is designed with the precision required for critical counting applications. It features a 4-bit binary counter with synchronous counting and asynchronous presetting. The counter can be programmed to operate in either up or down mode through the dedicated up/down pin. Additionally, the counter has a parallel load capability, allowing the user to preset it to any desired value with the load input.

With its differential outputs, this device can drive balanced loads or be connected in parallel for increased driving capability. The counter advances on the low-to-high transition of the clock input, while a low level at the master reset clears the entire counter, independent of other inputs. This ensures accurate and reliable operation in a variety of applications.

Applications

The CD74HC190E is suitable for a wide range of applications across different industries. It is commonly used in:

• Counting and timing circuits
• Frequency dividers
• Programmable counters
• Digital clocks
• Process control systems
• Automated systems requiring precision counting

This device's robust design and flexible functionality make it an excellent choice for engineers and designers looking for a reliable counter IC that can be easily integrated into their digital systems.