MM74HC594MX

Product Overview

• Category: Integrated Circuit
• Use: Shift Register with Output Latches
• Characteristics: High-Speed, Low-Power, Serial-to-Parallel Data Conversion
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The MM74HC594MX is a shift register with output latches that allows serial data to be converted into parallel data. It is commonly used in digital systems where multiple bits of data need to be processed simultaneously.
• Packaging/Quantity: The MM74HC594MX is available in a standard SOIC package and is typically sold in reels of 250 units.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage Levels: High: 2V to Vcc, Low: GND to 0.8Vcc
• Output Voltage Levels: High: Vcc-0.5V, Low: 0.5V
• Maximum Clock Frequency: 25MHz
• Number of Stages: 8
• Latch Enable Input: Active-High
• Serial Data Input: Active-High
• Serial Data Output: Active-High

Pin Configuration

The MM74HC594MX has a total of 16 pins arranged as follows:

+----+--+----+ Q1 |1 +--+ 16| Vcc Q2 |2 15| Q0 Q3 |3 14| SER Q4 |4 13| OE Q5 |5 MM74HC 12| ST_CP Q6 |6 594MX 11| SH_CP Q7 |7 10| MR Q8 |8 9| GND +------------+

Functional Features

• Serial-to-Parallel Conversion: The MM74HC594MX can convert serial data into parallel data, allowing for efficient processing of multiple bits simultaneously.
• Output Latches: The shift register has output latches that hold the converted parallel data until new data is received.
• High-Speed Operation: With a maximum clock frequency of 25MHz, the MM74HC594MX can handle high-speed data transfer.
• Low Power Consumption: The integrated circuit is designed to operate with low power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Efficient conversion of serial data to parallel data - Output latches for holding converted data - High-speed operation - Low power consumption

Disadvantages: - Limited number of stages (8) - Requires external clock and latch enable signals

Working Principles

The MM74HC594MX operates by shifting in serial data through the SER input pin. The shift register then converts the serial data into parallel data, which is stored in the output latches. The converted parallel data can be accessed through the Q0 to Q7 output pins. The shift register is controlled by clock signals applied to the SHCP pin, while the output latches are enabled by the STCP pin. The MR pin is used to reset the shift register and output latches to their initial state.

Detailed Application Field Plans

The MM74HC594MX is commonly used in various digital systems and applications, including:

1. LED Matrix Displays: The shift register can be used to control multiple LEDs in a matrix display, allowing for efficient control of individual LEDs.
2. Data Communication Systems: It can be used in serial-to-parallel data conversion circuits for efficient data processing and transmission.
3. Industrial Automation: The MM74HC594MX can be utilized in control systems that require parallel data processing, such as motor control and sensor interfacing.

Detailed and Complete Alternative Models

1. SN74HC595: Similar to the MM74HC594MX, this shift register also has output latches and can handle serial-to-parallel data conversion. It is available in various package options.
2. CD4094: This shift register with output latches offers similar functionality but operates at a lower clock frequency. It is available in different package options and is commonly used in low-power applications.

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

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