CD74HC164ME4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: High-Speed, CMOS Logic, 8-Bit Serial-In/Parallel-Out
• Package: SOIC-14
• Essence: The CD74HC164ME4 is a high-speed CMOS logic IC that functions as an 8-bit serial-in/parallel-out shift register. It is commonly used in digital electronics for data storage and transfer applications.
• Packaging/Quantity: The CD74HC164ME4 is available in a small outline integrated circuit (SOIC) package, which contains 14 pins.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Maximum Clock Frequency: 25 MHz
• Maximum Propagation Delay: 20 ns

Detailed Pin Configuration

The CD74HC164ME4 has a total of 14 pins, each serving a specific function:

1. SER (Serial Data Input)
2. CLK (Clock Input)
3. GND (Ground)
4. QH' (Serial Output)
5. QH (Parallel Output A)
6. QA (Parallel Output B)
7. QB (Parallel Output C)
8. QC (Parallel Output D)
9. QD (Parallel Output E)
10. QE (Parallel Output F)
11. QF (Parallel Output G)
12. QG (Parallel Output H)
13. VCC (Positive Power Supply)
14. RST (Reset Input)

Functional Features

• Serial-In/Parallel-Out Operation: The CD74HC164ME4 allows data to be shifted in serially and then transferred to the parallel outputs.
• High-Speed Operation: With a maximum clock frequency of 25 MHz, this IC enables fast data transfer.
• CMOS Logic: The use of CMOS technology ensures low power consumption and compatibility with a wide range of digital systems.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data transfer. - CMOS logic ensures low power consumption. - Compact SOIC package offers space-saving benefits. - Wide operating temperature range (-40°C to +85°C) makes it suitable for various environments.

Disadvantages: - Limited number of parallel outputs (8 bits). - Requires an external clock signal for proper operation.

Working Principles

The CD74HC164ME4 operates based on the principle of serial-in/parallel-out shifting. When a clock signal is applied to the CLK pin, the data present at the SER pin is shifted into the shift register. With each clock pulse, the data moves one position to the right. Once all 8 bits have been shifted in, they are available at the parallel output pins (QA-QH). The QH' pin provides the serial output of the last bit shifted in.

Detailed Application Field Plans

The CD74HC164ME4 finds applications in various fields, including:

1. Digital Communication Systems: Used for data storage and transfer in communication protocols such as UART, SPI, and I2C.
2. Industrial Automation: Enables control and monitoring of devices through parallel data transfer.
3. LED Display Control: Shifts data to drive LED displays, allowing for dynamic content presentation.
4. Memory Addressing: Utilized in memory addressing circuits to select specific memory locations.
5. Data Acquisition Systems: Facilitates the collection and processing of data from multiple sensors.

Detailed and Complete Alternative Models

1. 74HC164: Similar 8-bit serial-in/parallel-out shift register IC, available in various packages.
2. CD4015: Dual 4-bit static shift register with parallel outputs, suitable for different applications.
3. SN74HC595: 8-bit serial-in/serial-out shift register with output latches, commonly used in LED matrix control.

These alternative models offer similar functionality to the CD74HC164ME4 and can be considered based on specific requirements and availability.

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