SCES215Y April   1999  – December 2017 SN74LVC1GU04

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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 Switching Characteristics: TA = -40°C to +85°C
    7. 6.7 Switching Characteristics: TA = -40°C to +125°C
    8. 6.8 Operating Characteristics
    9. 6.9 Typical Characteristic
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Balanced High-Drive CMOS Push-Pull Outputs
      2. 8.3.2 Standard CMOS Inputs
      3. 8.3.3 Negative Clamping Diodes
      4. 8.3.4 Partial Power Down (Ioff)
      5. 8.3.5 Over-voltage Tolerant Inputs
      6. 8.3.6 Unbuffered Logic
    4. 8.4 Device Functional Modes
  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

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DPW|5
  • DBV|5
  • DSF|6
  • DCK|5
  • YZV|4
  • DRL|5
  • YZP|5
  • DRY|6
散热焊盘机械数据 (封装 | 引脚)
订购信息

Detailed Description

Overview

The SN74LVC1GU04 device contains one inverter with an unbuffered output with a maximum sink current of
32 mA.

Functional Block Diagram

SN74LVC1GU04 ld1_ces215.gif Figure 3. Logic Diagram (Positive Logic)

Feature Description

Balanced High-Drive CMOS Push-Pull Outputs

A balanced output allows the device to sink and source similar currents. The high-drive capability of this device creates fast edges into light loads, so routing and load conditions must be considered to prevent ringing. Additionally, the outputs of this device are capable of driving larger currents than the device can sustain without being damaged. It is important for the power output of the device to be limited to avoid thermal runaway and damage due to overcurrent. The electrical and thermal limits defined in the must be followed at all times.

Standard CMOS Inputs

Standard CMOS inputs are high impedance and are typically modeled as a resistor in parallel with the input capacitance given in the . The worst-case resistance is calculated with the maximum input voltage, given in the , and the maximum input leakage current, given in the , using ohm's law (R = V ÷ I).

Signals that are applied to the inputs need to have fast edge rates, as shown by Δt/Δv in the , to avoid excessive current consumption and oscillations. If a slow or noisy input signal is required, a device with a Schmitt-trigger input should be used to condition the input signal prior to the standard CMOS input.

Negative Clamping Diodes

The inputs and outputs to this device have negative clamping diodes as shown in Figure 4.

CAUTION

Voltages beyond the values specified in the table can cause damage to the device. The input negative-voltage and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

SN74LVC1GU04 Neg_Only_Diodes.gif Figure 4. Electrical Placement of Clamping Diodes for Each Input and Output

Partial Power Down (Ioff)

The inputs and outputs for this device enter a high-impedance state when the supply voltage is 0 V. The maximum leakage into or out of any input or output pin on the device is specified by Ioff in the .

Over-voltage Tolerant Inputs

Input signals to this device can be driven above the supply voltage so long as they remain below the maximum input voltage value specified in the .

Unbuffered Logic

A standard CMOS logic function typically consists of at least three stages: the input inverter, the logic function, and the output inverter. Some devices have multiple stages at the input or output for various reasons. An unbuffered CMOS logic function eliminates the extra input and output stages; the device only contains the required logic function which is directly driven from the inputs and directly drives the outputs.

The unbuffered inverter is commonly used in oscillator circuits because it is less sensitive to parameter changes in the oscillator circuit due to having lower total gain than a buffered equivalent. To learn more about how to use an unbuffered inverter in an oscillator circuit, see Use of the CMOS Unbuffered Inverter in Oscillator Circuits.

Device Functional Modes

Table 1 lists the functional modes of the SN74LVC1GU04.

Table 1. Function Table

INPUT
A
OUTPUT
Y
H L
L H