SCDS143C October 2003 – June 2015 SN74CB3Q3125
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)
- DBQ|16
- RGY|14
- DGV|14
- PW|14
散热焊盘机械数据 (封装 | 引脚)
- RGY|14
订购信息
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 SN74CB3Q3125 device can be used to control up to four channels simultaneously.
9.2 Typical Application
The application shown in Figure 5 is a 4-bit bus being controlled. The OE pins are used to control the chip from the bus controller. This is a very generic example and can apply to many situations. If an application requires less than 4 bits, be sure to tie the A side to either high or low on unused channels.
Figure 5. Typical Application of the SN74CB3Q3257
9.2.1 Design Requirements
The 0.1-µF capacitor must be placed as close as possible to the SN74CB3Q3257 device.
9.2.2 Detailed Design Procedure
- Recommended input conditions:
- For specified high and low levels, see VIH and VIL in Recommended Operating Conditions
- Inputs and outputs are overvoltage tolerant, which slows them to go as high as 5.5 V at any valid VCC
- Recommended output conditions:
- Load currents must not exceed ±64 mA per channel
- Frequency selection criterion:
- Added trace resistance or capacitance can reduce maximum frequency capability; use layout practices as directed in Layout
9.2.3 Application Curve
Figure 6. Propagation Delay (tpd) Simulation Result at VCC = 3.3 V