MM74HC595MX

Product Overview

• Category: Integrated Circuit
• Use: Shift Register
• Characteristics: Serial-In, Parallel-Out; High-Speed Operation; Wide Operating Voltage Range
• Package: 16-Pin SOIC (Small Outline Integrated Circuit)
• Essence: The MM74HC595MX is a high-speed shift register that can be used to expand the number of outputs in a microcontroller or other digital circuit. It allows serial data input and parallel data output, making it ideal for applications where multiple outputs are required.
• Packaging/Quantity: The MM74HC595MX is typically sold in reels or tubes containing 250 units.

Specifications

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

Pin Configuration

The MM74HC595MX has a total of 16 pins, which are assigned specific functions as follows:

1. Q0: Output 0
2. Q1: Output 1
3. Q2: Output 2
4. Q3: Output 3
5. Q4: Output 4
6. Q5: Output 5
7. Q6: Output 6
8. Q7: Output 7
9. GND: Ground
10. SER: Serial Data Input
11. RCLK: Register Clock Input
12. SRCLK: Shift Register Clock Input
13. OE: Output Enable
14. SRCLR: Shift Register Clear
15. QA: Cascade Output
16. Vcc: Supply Voltage

Functional Features

• Serial-in, parallel-out operation allows for easy expansion of output ports.
• High-speed operation enables efficient data transfer.
• Wide operating voltage range makes it compatible with various digital systems.
• Output enable and shift register clear pins provide additional control options.

Advantages and Disadvantages

Advantages: - Easy to use and integrate into existing circuits. - Provides a cost-effective solution for expanding output capabilities. - High-speed operation allows for quick data transfer.

Disadvantages: - Limited number of output stages (8 in this case). - Requires additional components for cascading multiple devices.

Working Principles

The MM74HC595MX is based on the principle of serial-in, parallel-out shifting. It receives data serially through the SER pin and shifts it through the internal shift register upon each rising edge of the SRCLK input. The data is then latched into the output register on the rising edge of the RCLK input. This allows the parallel output data to be available simultaneously on the Q0-Q7 pins.

Detailed Application Field Plans

The MM74HC595MX can be used in various applications, including but not limited to:

1. LED Matrix Displays: By using multiple MM74HC595MX devices, it is possible to control a large number of LEDs in a matrix display configuration.
2. Seven-Segment Displays: The shift register can be used to drive multiple seven-segment displays, enabling the display of numbers, letters, or other characters.
3. Motor Control: The outputs of the MM74HC595MX can be used to control the direction or speed of motors in robotics or automation systems.
4. Data Multiplexing: The shift register can be utilized to multiplex data from multiple sources onto a single output line.

Detailed and Complete Alternative Models

1. 74HC595: This is a similar shift register IC from Texas Instruments, offering the same functionality as the MM74HC595MX.
2. CD4094: This IC from Texas Instruments provides similar shift register functionality but with additional features such as data latching and output enable control.

These alternative models can be considered based on specific requirements or availability in the market.

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