SCES464G June 2003 – August 2015 SN74LVC1G19
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項
請參考 PDF 數據表獲取器件具體的封裝圖。
機械數據 (封裝 | 引腳)
- DBV|6
- DRL|6
- YZP|6
- DCK|6
- DRY|6
散熱焊盤機械數據 (封裝 | 引腳)
- DRY|6
訂購信息
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
The SN74LVC1G19 device is a 1-of-2 decoder/demultiplexer. This device decodes the 1 bit address on input A and places a logic low on the matching address output, Y0 or Y1 , when the enable (E) input signal is low. It can produce 24 mA of drive current at 3.3 V making it ideal for driving multiple outputs.
9.2 Typical Application
Figure 5. Typical Application Diagram
9.2.1 Design Requirements
This device uses CMOS technology and has balanced output drive. Take care to avoid bus contention because it can drive currents that would exceed maximum limits. Outputs can be combined to produce higher drive but the high drive will also create faster edges into light loads so routing and load conditions should be considered to prevent ringing.
9.2.2 Detailed Design Procedure
- Recommended Input Conditions:
- For rise time and fall time specifications, see (Δt/ΔV) in Recommended Operating Conditions table.
- For specified high and low levels, see (VIH and VIL) in Recommended Operating Conditions table.
- Inputs are overvoltage tolerant allowing them to go as high as 5.5 V at any valid VCC.
- Recommend Output Conditions:
- Load currents must not exceed 50 mA per output and 100 mA total for the part.
- Series resistors on the output may be used if the user desires to slow the output edge signal or limit the output current.
9.2.3 Application Curve
Figure 6. ICC vs Frequency