SCAS291W MARCH 1993 – October 2016 SN54LVC138A , SN74LVC138A
PRODUCTION DATA.
請參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
The power supply can be any voltage between the minimum and maximum supply voltage rating located in the Recommended Operating Conditions.
Each VCC terminal must have a good bypass capacitor to prevent power disturbance. A 0.1-µF bypass capacitor is recommended to be placed close to the VCC terminal. It is acceptable to parallel multiple bypass capacitors to reject different frequencies of noise; 0.1-µF and 1-µF capacitors are commonly used in parallel. The bypass capacitor must be installed as close to the power terminal as possible for best results.