The Harris Corporation CD4024BM is a CMOS, dual 4-stage static shift register, specifically designed to operate in various digital applications. Known for its versatility, low power consumption, and reliable performance, the CD4024BM is widely used in both consumer electronics and industrial control systems.

## Key Features

1. Dual 4-Stage Shift Register:
- The CD4024BM houses two independent 4-bit shift registers, allowing simultaneous operation on different data streams.

2. Static Operation:
- The registers maintain their state even when not actively shifting, which is particularly advantageous for applications requiring temporary data storage.

3. Wide Supply Voltage Range:
- The device operates efficiently over a supply voltage range from 3V to 15V, accommodating various circuit configurations.

4. Low Power Consumption:
- It features low quiescent current, making it suitable for battery-operated devices and energy-efficient designs.

5. High Noise Immunity:
- The CD4024BM boasts excellent noise margins, ensuring reliable performance even in electrically noisy environments.

6. TTL-Compatible Inputs:
- The inputs are compatible with both TTL and CMOS logic levels, facilitating integration into existing systems.

7. Synchronous Operation:
- Data shifts occur on the leading edge of the clock signal, providing precise timing control for data handling.

8. Asynchronous Clear:
- Each shift register can be asynchronously cleared, allowing for quick resets without waiting for clock cycles.

## Electrical Specifications

Here are the key electrical specifications for the CD4024BM:

- Supply Voltage (VDD):
- Minimum: 3.0 V
- Maximum: 15.0 V

- Input Voltage Range (VIN):
- Minimum: 0 V
- Maximum: VDD

- Output Voltage Levels:
- High Level Output Voltage (VOH): Typically VDD - 0.1 V at IOH = -200 µA
- Low Level Output Voltage (VOL): Typically 0.1 V at IOL = 200 µA

- Input Current (IIN):
- Maximum: ±1 µA at VDD = 15 V

- Output Current (IOUT):
- Maximum: ±3.0 mA

- Propagation Delay (tPD):
- Typical: 10 ns (depends on supply voltage and load capacitance)

- Clock Frequency (fCLK):
- Maximum: 1 MHz (depending on VDD and load conditions)

- Power Dissipation (PD):
- Maximum: 1.5 mW at VDD = 15 V

- Operating Temperature Range:
- Commercial: 0°C to +70°C
- Industrial: -40°C to +85°C

## Pin Configuration

The CD4024BM is typically available in a 16-pin DIP package or equivalent surface-mount packages. The standard pin configuration includes:

- Shift Register A:
- Data Input (D)
- Clock Input (CLK)
- Parallel Load Enable (PL)
- Clear Input (CLR)
- Serial Output (Q)

- Shift Register B:
- Same pin configuration as Shift Register A.

- Common Pins:
- VDD: Power supply
- GND: Ground

## Applications

The CD4024BM is suitable for a variety of applications, including but not limited to:

1. Data Storage:
- Ideal for temporary data storage in digital circuits, such as in microcontroller interfacing.

2. Digital Signal Processing:
- Facilitates operations like filtering and modulation in DSP applications.

3. Telecommunication Systems:
- Used for serial-to-parallel conversion and other data manipulation tasks in communication protocols.

4. Control Circuits:
- Implements state management and sequencing functions in industrial control applications.

5. Consumer Electronics:
- Found in devices like remote controls, digital clocks, and display controllers.

## Design Considerations

When designing with the CD4024BM, consider the following:

1. Power Supply Decoupling:
- Use bypass capacitors near the VDD and GND pins to reduce noise and ensure stable operation.

2. Timing Constraints:
- Verify that the clock signal meets the required setup and hold times for reliable data shifting.

3. Load Conditions:
- Be mindful of output load conditions to maintain signal integrity and prevent excessive current draw.

4. Temperature Management:
- Ensure that the operating temperature remains within the specified limits to avoid performance issues.

5. Asynchronous Clear Functionality:
- Familiarize yourself with using the asynchronous clear feature for quick resets during operation.

## Conclusion

The Harris Corporation CD4024BM is a robust and flexible dual 4-stage static shift register that provides reliable performance across a spectrum of digital applications. Its combination of wide supply voltage range, low power consumption, and high noise immunity makes it an excellent choice for modern electronic designs. For detailed specifications, application notes, and design resources, refer to the official datasheet from Harris Corporation to ensure effective implementation in your projects.