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74HC595DB,112
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74HC595DB,112

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Shift Register
  • Characteristics: Serial-In, Parallel-Out; High-Speed Operation; Wide Operating Voltage Range
  • Package: SSOP (Shrink Small Outline Package)
  • Essence: 8-bit Serial-In, Parallel-Out Shift Register with Output Latches
  • Packaging/Quantity: Tape and Reel, 2,500 units per reel

Specifications

  • Supply Voltage Range: 2 V to 6 V
  • Input Voltage Range: -0.5 V to VCC + 0.5 V
  • Output Voltage Range: GND to VCC
  • Maximum Clock Frequency: 25 MHz
  • Maximum Output Current: 35 mA
  • Operating Temperature Range: -40°C to +125°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 shift register operation
  • 8-bit storage register with output latches
  • High-speed operation with a maximum clock frequency of 25 MHz
  • Wide operating voltage range allows compatibility with various systems
  • Output enable input for easy control of output states
  • Shift register clear input for resetting the shift register

Advantages

  • Compact SSOP package enables space-saving designs
  • High-speed operation facilitates efficient data transfer
  • Wide operating voltage range enhances versatility
  • Output enable input provides flexibility in controlling outputs
  • Shift register clear input allows easy reset of the shift register

Disadvantages

  • Limited number of parallel outputs (8 bits)
  • Requires external components for proper operation
  • Sensitivity to voltage fluctuations may affect performance

Working Principles

The 74HC595DB,112 is a serial-in, parallel-out shift register IC. It receives data serially through the SER pin and shifts it into its internal storage register on each rising edge of the SRCLK input. The QA-QH pins represent the parallel outputs, which latch the stored data when the RCLK input transitions from high to low. The OE pin enables or disables the outputs, while the SRCLR pin clears the shift register when activated.

Detailed Application Field Plans

  1. LED Matrix Control: The 74HC595DB,112 can be used to control an LED matrix display by sequentially shifting in the desired pattern and latching the data to the output pins.
  2. Serial-to-Parallel Conversion: It can convert serial data streams into parallel data, making it useful in applications such as data communication protocols.
  3. Multiplexing: By cascading multiple 74HC595DB,112 ICs, larger numbers of outputs can be controlled, enabling multiplexing in various applications.

Detailed and Complete Alternative Models

  • SN74HC595N: DIP (Dual In-line Package) version of the 74HC595DB,112
  • CD74HC595E: PDIP (Plastic Dual In-line Package) version with extended temperature range
  • MC74HC595AD: SOIC (Small Outline Integrated Circuit) version with higher maximum clock frequency

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 74HC595DB,112 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of 74HC595DB,112 in technical solutions:

  1. Q: What is the 74HC595DB,112? A: The 74HC595DB,112 is an 8-bit serial-in, serial or parallel-out shift register with output latches. It can be used to expand the number of outputs from a microcontroller.

  2. Q: How does the 74HC595DB,112 work? A: The 74HC595DB,112 receives data serially and shifts it into its internal registers. It then outputs the data in parallel to its output pins.

  3. Q: What is the maximum clock frequency for the 74HC595DB,112? A: The maximum clock frequency for the 74HC595DB,112 is typically around 25 MHz.

  4. Q: Can I use the 74HC595DB,112 with both 3.3V and 5V microcontrollers? A: Yes, the 74HC595DB,112 is compatible with both 3.3V and 5V microcontrollers as it has a wide operating voltage range.

  5. Q: How many outputs can I control using a single 74HC595DB,112? A: With a single 74HC595DB,112, you can control up to 8 outputs. However, by daisy-chaining multiple chips, you can control even more outputs.

  6. Q: Can I use the 74HC595DB,112 to drive LEDs? A: Yes, the 74HC595DB,112 is commonly used to drive LEDs as it can provide enough current to light them up.

  7. Q: How do I connect the 74HC595DB,112 to a microcontroller? A: The 74HC595DB,112 requires three control signals: serial data input (SER), clock input (SRCLK), and latch enable (RCLK). These signals need to be connected to the appropriate pins on the microcontroller.

  8. Q: Can I use the 74HC595DB,112 with other shift registers? A: Yes, you can cascade multiple 74HC595DB,112 chips together to increase the number of outputs even further.

  9. Q: What is the maximum current that the 74HC595DB,112 can sink/source per output pin? A: The 74HC595DB,112 can typically sink or source up to 35 mA per output pin.

  10. Q: Are there any limitations to using the 74HC595DB,112? A: One limitation is that the 74HC595DB,112 does not have built-in protection against overvoltage or overcurrent. It's important to ensure that the voltage and current limits are not exceeded to prevent damage to the chip.

Please note that the specific details and answers may vary depending on the datasheet and manufacturer's specifications for the 74HC595DB,112.