Datasheet SN74LVC2G14 (Texas Instruments) - 8
| Hersteller | Texas Instruments |
| Beschreibung | Dual Schmitt-Trigger Inverter |
| Seiten / Seite | 24 / 8 — SN74LVC2G14. www.ti.com. 8 Detailed Description. 8.1 Overview. 8.2 … |
| Revision | O |
| Dateiformat / Größe | PDF / 1.1 Mb |
| Dokumentensprache | Englisch |
SN74LVC2G14. www.ti.com. 8 Detailed Description. 8.1 Overview. 8.2 Functional Block Diagram. 8.3 Feature Description
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SN74LVC2G14
SCES200O – APRIL 1999 – REVISED AUGUST 2015
www.ti.com 8 Detailed Description 8.1 Overview
The SN74LVC2G14 device contains two Schmitt Trigger Inverter and performs the Boolean function Y = A. The device functions as an independent inverter, but because of Schmitt Trigger action, it will have different input threshold levels for a positive-going (Vt+) and negative-going (Vt-) signals. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuit disables the output, preventing damaging current back-flow through the device when it is powered down.
8.2 Functional Block Diagram 1 6 1A 1Y 3 4 2A 2Y 8.3 Feature Description 8.3.1 Support Translation Down (5 V to 3.3 V; 3.3 V to 1.8 V)
As the inputs are 5.5-V tolerant, the device can be used as a down translator. When the input voltage exceeds VT+ (Max), the output will follow VCC, performing down-translation if the input voltage exceeds VCC.
8.4 Device Functional Modes
Table 1 lists the functional modes of the SN74LVC2G14.
Table 1. Functional Table (Each Inverter) INPUT OUTPUT A Y
H L L H 8 Submit Documentation Feedback Copyright © 1999–2015, Texas Instruments Incorporated Product Folder Links: SN74LVC2G14 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Switching Characteristics, –40°C to 85°C 6.7 Switching Characteristics, –40°C to 125°C 6.8 Operating Characteristics 6.9 Typical Characteristics 7 Parameter Measurement Information 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Support Translation Down (5 V to 3.3 V; 3.3 V to 1.8 V) 8.4 Device Functional Modes 9 Application and Implementation 9.1 Application Information 9.2 Typical Application 9.2.1 Design Requirements 9.2.2 Detailed Design Procedure 9.2.3 Application Curve 10 Power Supply Recommendations 11 Layout 11.1 Layout Guidelines 11.2 Layout Example 12 Device and Documentation Support 12.1 Community Resources 12.2 Trademarks 12.3 Electrostatic Discharge Caution 12.4 Glossary 13 Mechanical, Packaging, and Orderable Information
SN74LVC2G14
SCES200O – APRIL 1999 – REVISED AUGUST 2015
www.ti.com 8 Detailed Description 8.1 Overview
The SN74LVC2G14 device contains two Schmitt Trigger Inverter and performs the Boolean function Y = A. The device functions as an independent inverter, but because of Schmitt Trigger action, it will have different input threshold levels for a positive-going (Vt+) and negative-going (Vt-) signals. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuit disables the output, preventing damaging current back-flow through the device when it is powered down.
8.2 Functional Block Diagram 1 6 1A 1Y 3 4 2A 2Y 8.3 Feature Description 8.3.1 Support Translation Down (5 V to 3.3 V; 3.3 V to 1.8 V)
As the inputs are 5.5-V tolerant, the device can be used as a down translator. When the input voltage exceeds VT+ (Max), the output will follow VCC, performing down-translation if the input voltage exceeds VCC.
8.4 Device Functional Modes
Table 1 lists the functional modes of the SN74LVC2G14.
Table 1. Functional Table (Each Inverter) INPUT OUTPUT A Y
H L L H 8 Submit Documentation Feedback Copyright © 1999–2015, Texas Instruments Incorporated Product Folder Links: SN74LVC2G14 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Switching Characteristics, –40°C to 85°C 6.7 Switching Characteristics, –40°C to 125°C 6.8 Operating Characteristics 6.9 Typical Characteristics 7 Parameter Measurement Information 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Support Translation Down (5 V to 3.3 V; 3.3 V to 1.8 V) 8.4 Device Functional Modes 9 Application and Implementation 9.1 Application Information 9.2 Typical Application 9.2.1 Design Requirements 9.2.2 Detailed Design Procedure 9.2.3 Application Curve 10 Power Supply Recommendations 11 Layout 11.1 Layout Guidelines 11.2 Layout Example 12 Device and Documentation Support 12.1 Community Resources 12.2 Trademarks 12.3 Electrostatic Discharge Caution 12.4 Glossary 13 Mechanical, Packaging, and Orderable Information