Texas Instruments
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
SN74HC595PWRG4
詳細を表示 DataSheets

SN74HC595PWRG4

Product Overview

  • Category: Integrated Circuit
  • Use: Shift Register
  • Characteristics: Serial-In, Parallel-Out, High-Speed, Low-Power Consumption
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: 8-bit Serial-In, Parallel-Out Shift Register with Output Latches
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Clock Frequency: 25 MHz
  • Maximum Data Rate: 100 Mbps

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 to parallel-out conversion
  • Cascadable for larger shift register applications
  • Output latches for holding data
  • High-speed operation
  • Low-power consumption
  • Wide supply voltage range

Advantages

  • Allows efficient control of multiple outputs using a single microcontroller pin
  • Simplifies circuit design by reducing the number of required pins
  • Provides flexibility in controlling various devices such as LEDs, LCDs, and relays
  • Supports daisy-chaining for expanding the number of outputs
  • Offers high-speed data transfer for time-critical applications

Disadvantages

  • Limited number of parallel outputs (8 bits)
  • Requires additional components for driving higher loads
  • May introduce additional complexity in circuit layout and routing

Working Principles

The SN74HC595PWRG4 is a shift register that converts serial data into parallel output. It operates based on the clock signals provided to the shift register clock (SRCLK) and register clock (RCLK) inputs. When the SRCLK input receives a rising edge, the data from the serial data input (SER) is shifted into the shift register. On the rising edge of the RCLK input, the data stored in the shift register is transferred to the output latches, which then drive the parallel outputs (QA-QH). The output enable (OE) input controls the state of the outputs.

Detailed Application Field Plans

  • LED matrix control
  • Multiplexed display systems
  • Data storage and retrieval systems
  • Serial-to-parallel data conversion
  • Address decoding in memory systems
  • General-purpose digital logic applications

Detailed and Complete Alternative Models

  1. 74HC595: Similar functionality, different package options (DIP, SOIC)
  2. CD4094: 8-bit serial-in, parallel-out shift register with latch
  3. TPIC6B595: Shift register with built-in high-current output drivers
  4. MAX7219: Serially interfaced, 8-digit LED display driver

These alternative models offer similar functionalities to the SN74HC595PWRG4 and can be used as replacements depending on specific requirements and availability.

Word count: 343 words

技術ソリューションにおける SN74HC595PWRG4 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of SN74HC595PWRG4:

  1. Q: What is SN74HC595PWRG4? A: SN74HC595PWRG4 is a popular 8-bit shift register with output latches, commonly used in digital electronics projects.

  2. Q: What is the purpose of SN74HC595PWRG4? A: The purpose of SN74HC595PWRG4 is to expand the number of output pins available on a microcontroller or other digital device.

  3. Q: How many output pins does SN74HC595PWRG4 have? A: SN74HC595PWRG4 has 8 output pins, labeled Q0 to Q7.

  4. Q: Can SN74HC595PWRG4 be used to drive LEDs? A: Yes, SN74HC595PWRG4 can be used to drive LEDs by connecting them to the output pins and controlling their states using the shift register.

  5. Q: How do I connect SN74HC595PWRG4 to a microcontroller? A: SN74HC595PWRG4 requires three control signals - serial data input (SER), clock input (SRCLK), and latch enable (RCLK). Connect these signals to appropriate pins on the microcontroller.

  6. Q: Can multiple SN74HC595PWRG4 chips be cascaded together? A: Yes, multiple SN74HC595PWRG4 chips can be cascaded together to further expand the number of output pins.

  7. Q: How do I control the outputs of SN74HC595PWRG4? A: To control the outputs, you need to send serial data to the shift register using the SER pin and then toggle the clock input (SRCLK) to shift the data into the register. Finally, toggle the latch enable (RCLK) to update the outputs.

  8. Q: What is the maximum clock frequency for SN74HC595PWRG4? A: The maximum clock frequency for SN74HC595PWRG4 is typically around 25 MHz.

  9. Q: Can SN74HC595PWRG4 be used with both 3.3V and 5V microcontrollers? A: Yes, SN74HC595PWRG4 is compatible with both 3.3V and 5V microcontrollers as it has wide voltage compatibility.

  10. Q: Are there any limitations to using SN74HC595PWRG4? A: One limitation of SN74HC595PWRG4 is that it can only sink current, not source it. So, if you need to drive high-current loads, you will need additional driver circuitry.

Please note that these answers are general and may vary depending on specific application requirements.