ZHCSOB3D November 1998 – June 2021 CD54HC126 , CD74HC126
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
A balanced output allows the device to sink and source similar currents. The drive capability of this device may create fast edges into light loads so routing and load conditions should 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 output power of the device to be limited to avoid damage due to over-current. The electrical and thermal limits defined in the GUID-DCE2CCE3-221B-4462-9B51-B7037ADC4129.html#GUID-DCE2CCE3-221B-4462-9B51-B7037ADC4129 must be followed at all times.
The CD74HC126 can drive a load with a total capacitance less than or equal to the maximum load listed in the GUID-77B0098A-062F-4709-A6E2-261C3799747C.html#GUID-77B0098A-062F-4709-A6E2-261C3799747C connected to a high-impedance CMOS input while still meeting all of the datasheet specifications. Larger capacitive loads can be applied, however it is not recommended to exceed the provided load value. If larger capacitive loads are required, it is recommended to add a series resistor between the output and the capacitor to limit output current to the values given in the GUID-DCE2CCE3-221B-4462-9B51-B7037ADC4129.html#GUID-DCE2CCE3-221B-4462-9B51-B7037ADC4129.
3-State outputs can be placed into a high-impedance state. In this state, the output will neither source nor sink current, and leakage current is defined by the IOZ specification in the GUID-B5332447-CF2E-4526-AC17-CF78A027D97F.html#GUID-B5332447-CF2E-4526-AC17-CF78A027D97F. A pull-up or pull-down resistor can be used to ensure that the output remains HIGH or LOW, respectively, during the high-impedance state.