CD74HC4094PWR

Product Overview

• Category: Integrated Circuit
• Use: Shift Register
• Characteristics: High-speed, CMOS Logic, Serial-to-Parallel Conversion
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: 8-Bit Serial-In, Parallel-Out Shift Register
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

The CD74HC4094PWR is a high-speed CMOS logic integrated circuit that serves as an 8-bit serial-in, parallel-out shift register. It operates on a wide voltage range of 2V to 6V, making it suitable for various applications. The device features a clock input, a serial data input, and eight parallel outputs. It offers a maximum clock frequency of 25 MHz, enabling fast data transfer.

Pin Configuration

The CD74HC4094PWR has a total of 16 pins, each serving a specific function:

1. VCC - Positive Power Supply
2. GND - Ground
3. SER - Serial Data Input
4. SRCLK - Serial Clock Input
5. RCLK - Register Clock Input
6. SRCLR - Serial Clear Input
7. OE - Output Enable Input
8. QA-QH - Parallel Outputs

Functional Features

The CD74HC4094PWR provides several functional features that enhance its usability:

• Serial-to-parallel conversion: The device allows the conversion of serial data into parallel output, enabling efficient data processing.
• Cascading capability: Multiple CD74HC4094PWR devices can be cascaded together to expand the number of parallel outputs.
• Output enable control: The OE pin allows the user to enable or disable the parallel outputs, providing flexibility in data transmission.
• Serial clear function: The SRCLR pin clears the shift register, allowing for a fresh start in data processing.

Advantages and Disadvantages

Advantages: - High-speed operation: The CD74HC4094PWR operates at a maximum clock frequency of 25 MHz, ensuring fast data transfer. - Wide voltage range: The device can operate within a voltage range of 2V to 6V, making it compatible with various systems. - Compact package: The TSSOP package offers a small form factor, allowing for space-efficient integration into electronic circuits.

Disadvantages: - Limited parallel outputs: The CD74HC4094PWR provides only eight parallel outputs, which may be insufficient for certain applications requiring a higher number of outputs. - Lack of built-in logic functions: The device primarily serves as a shift register and does not include additional built-in logic functions, limiting its versatility in complex circuit designs.

Working Principles

The CD74HC4094PWR operates based on the principle of serial-to-parallel conversion. It receives serial data through the SER pin and shifts it into an internal shift register upon each rising edge of the SRCLK input. The RCLK input latches the data from the shift register into the parallel output registers, making it available at the QA-QH pins. The OE pin controls the output enable function, allowing the user to enable or disable the parallel outputs as needed. The SRCLR pin clears the shift register when activated, resetting the device for new data input.

Detailed Application Field Plans

The CD74HC4094PWR finds application in various fields where serial-to-parallel conversion and efficient data processing are required. Some specific application areas include:

1. LED Display Systems: The device can be used to control multiple LEDs by converting serial data into parallel output signals, enabling the display of complex patterns and animations.
2. Data Communication: It can be employed in serial communication protocols to convert incoming serial data into parallel format for further processing or display.
3. Industrial Automation: The CD74HC4094PWR can be utilized in industrial control systems to handle data from multiple sensors and actuators, enabling efficient control and monitoring.

Detailed and Complete Alternative Models

1. 74HC595: This 8-bit shift register with output latches provides similar functionality to the CD74HC4094PWR but offers a higher number of parallel outputs (16) and includes built-in logic functions.
2. SN74HC164: A simpler alternative, this 8-bit serial-in, parallel-out shift register lacks the output enable function but is suitable for applications requiring basic serial-to-parallel conversion.

(Note: The above alternatives are just examples and not an exhaustive list.)

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