SN74HC595ADBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Shift Register
• Characteristics: Serial-in, parallel-out shift register with output latches
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Facilitates serial-to-parallel data conversion
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Number of Stages: 8
• Maximum Clock Frequency: 25 MHz
• Output Current: 35 mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. SER (Serial Data Input)
2. RCLK (Register Clock Input)
3. SRCLK (Shift Register Clock Input)
4. OE (Output Enable Input)
5. SRCLR (Shift Register Clear Input)
6. QA-QH (Parallel Outputs)
7. GND (Ground)
8. VCC (Supply Voltage)

Functional Features

• Serial-in, parallel-out operation
• Cascadable for larger shift registers
• Output latches for holding data
• Output enable control for multiplexing applications
• Shift register clear function for initialization

Advantages

• Simplifies serial-to-parallel data conversion
• Allows cascading multiple devices for expanded functionality
• Output latches provide stable data output
• Wide operating voltage range allows flexibility in power supply selection
• High clock frequency enables fast data transfer

Disadvantages

• Limited number of stages (8) may not be sufficient for certain applications requiring more parallel outputs
• Output current (35 mA) may not be suitable for driving high-power loads directly

Working Principles

The SN74HC595ADBR is a shift register IC that converts serial input data into parallel output data. It operates by shifting the input data bit-by-bit through its internal stages upon receiving clock pulses. The serial data is loaded into the first stage and then shifted to subsequent stages with each clock pulse. The parallel outputs hold the data until new data is loaded. The output enable control allows multiplexing of the parallel outputs, while the shift register clear function initializes the device.

Detailed Application Field Plans

The SN74HC595ADBR is widely used in various applications, including:

1. LED Matrix Displays: The shift register can be used to control multiple LEDs in a matrix arrangement, enabling efficient control of individual LEDs.
2. Seven-Segment Displays: By connecting the parallel outputs to the seven segments of a display, the IC can drive numeric or alphanumeric displays.
3. Serial-to-Parallel Conversion: The IC is commonly used to convert serial data from sensors or communication interfaces into parallel data for further processing.
4. Data Storage and Transfer: The output latches allow temporary storage of data, making it suitable for applications requiring data buffering or transfer between different systems.

Detailed and Complete Alternative Models

1. 74HC595: Similar functionality, but operates at a lower voltage range (2V to 6V).
2. CD4094: 8-stage shift register with latch and output enable features, operating at a wider voltage range (3V to 18V).
3. SN54HC595: Equivalent to SN74HC595ADBR, but available in a different package (DIP - Dual Inline Package).

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