SCES560G March   2004  – June 2015 SN74LVC1G175

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Timing Requirements, -40°C to 85°C
    7. 6.7  Timing Requirements, -40°C to 125°C
    8. 6.8  Switching Characteristics, -40°C to 85°C
    9. 6.9  Switching Characteristics, -40°C to 85°C
    10. 6.10 Switching Characteristics, -40°C to 125°C
    11. 6.11 Operating Characteristics
    12. 6.12 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality.

9.1 Application Information

Multiple SN74LVC1G175 devices can be used in tandem to create a shift register of arbitrary length. In this example, we use four SN74LVC1G175 devices to form a 4-bit serial shift register. By connecting all CLK inputs to a common clock pulse and tying each output of one device to the next, we can store and load 4-bit values on demand. We demonstrate loading the 4 bit value 1101 into memory by setting Serial Input Data to each desired memory bit, and by sending a clock pulse for each bit, we sequentially move all stored bits from left to right
(A → B → C → D)

9.2 Typical Application

SN74LVC1G175 pgad1.gifFigure 4. 4-Bit Serial Shift Register

Table 2. Stored Data Values

Serial Input Data Stored A Stored B Stored C Stored D
1 0 0 0 0
0 1 0 0 0
1 0 1 0 0
1 1 0 1 0
0 1 1 0 1

9.2.1 Design Requirements

The SN74LVC1G175 device uses CMOS technology and has balanced output drive. Care must be taken to avoid bus contention because it can drive currents that would exceed maximum limits.

The SN74LVC1G175 allows storing digital signals with a digital control signal. All input signals should remain as close as possible to either 0 V or VCC for optimal operation.

9.2.2 Detailed Design Procedure

  1. Recommended input conditions:
    • For rise time and fall time specifications, see Δt/Δv in the table.
    • For specified high and low levels, see VIH and VIL in the table.
    • Inputs and outputs are overvoltage tolerant and can therefore go as high as 5.5 V at any valid VCC.
  2. Recommended output conditions:
    • Load currents should not exceed ±50 mA.
  3. Frequency selection criterion:
    • The effects of frequency upon the output current should be studied in Figure 5.
    • Added trace resistance and capacitance can reduce maximum frequency capability; follow the layout practices listed in the Layout section.

9.2.3 Application Curve

SN74LVC1G175 appcurve1_ces560.gifFigure 5. Max tpd vs Voltage of LVC Family