CD74HC4094M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: High-speed, CMOS Logic, Serial-to-Parallel Conversion
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The CD74HC4094M is a high-speed CMOS logic IC that performs serial-to-parallel conversion. It is commonly used in various digital applications where data needs to be shifted and stored in parallel.
• Packaging/Quantity: The CD74HC4094M is typically available in reels or tubes, with a quantity of 250 or 2,500 units per package.

Specifications

The CD74HC4094M has the following specifications:

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Maximum Clock Frequency: 25 MHz
• Number of Stages: 8
• Output Current: ±5.2 mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The CD74HC4094M has a 16-pin configuration as follows:

1. Serial Data Input (DS)
2. Serial Data Output (QH')
3. Clock Input (CP)
4. Master Reset Input (MR)
5. Output Enable Input (OE)
6. Parallel Data Outputs (Q7-Q0)
7. Ground (GND)
8. Parallel Data Inputs (D7-D0)
9. Serial Data Input (DS)
10. Serial Data Output (QH')
11. Clock Input (CP)
12. Master Reset Input (MR)
13. Output Enable Input (OE)
14. Parallel Data Outputs (Q7-Q0)
15. VCC (Positive Power Supply)
16. Ground (GND)

Functional Features

The CD74HC4094M offers the following functional features:

• Serial-to-Parallel Conversion: The IC can convert serial data input into parallel data outputs.
• High-Speed Operation: It operates at a maximum clock frequency of 25 MHz, allowing for fast data transfer.
• CMOS Logic: The IC uses CMOS technology, providing low power consumption and high noise immunity.
• Cascadable: Multiple CD74HC4094M ICs can be cascaded to increase the number of parallel outputs.

Advantages and Disadvantages

Advantages of the CD74HC4094M include:

• High-speed operation
• Low power consumption
• Easy cascading capability

Disadvantages of the CD74HC4094M include:

• Limited number of parallel outputs (8 stages)
• Requires external components for proper functionality (clock signal, reset signal, etc.)

Working Principles

The CD74HC4094M works based on the principle of serial-to-parallel conversion. When a clock signal is applied to the CP pin, the IC shifts the data present at the DS pin into its internal shift register. On each clock pulse, the shifted data is transferred to the parallel outputs (Q7-Q0). The MR pin can be used to reset the shift register, and the OE pin can enable/disable the output.

Detailed Application Field Plans

The CD74HC4094M finds applications in various digital systems where serial data needs to be converted into parallel data. Some common application fields include:

1. LED Matrix Displays: The IC can be used to control multiple LEDs in a matrix display, enabling efficient control and reduced wiring complexity.
2. Data Storage Systems: It can be utilized in data storage systems where serial data needs to be stored in parallel format for further processing.
3. Digital Counters: The CD74HC4094M can be employed in digital counters to store and display the count value on multiple output channels.

Detailed and Complete Alternative Models

Some alternative models to the CD74HC4094M include:

1. 74HC595: This IC also performs serial-to-parallel conversion but offers a higher number of parallel outputs (8-bit shift register).
2. CD4015: It is a dual 4-stage static shift register, suitable for applications requiring more stages.
3. SN74LS164: This IC is a serial-in/parallel-out shift register with 8 stages, commonly used in various digital systems.

These alternative models provide similar functionality but may have different specifications and pin configurations.

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