NXP 74HC257D,652 芯片, 四路多路复用器, 8路输入, SOIC-16
Is your microprocessor running out of IO ports? Reduce the number of electrical lines with Semiconductors" multiplexer, a tool that can easily forward one of many selected lines into a single port! Its maximum power dissipation is 500 mW. This device has a maximum power dissipation of 500 mW. This multiplexer has an operating temperature range of -40 °C to 125 °C. This product comes packaged in bulk, so the parts will be stored loosely. This non-inverting device has a typical operating supply voltage of 5 V. Its minimum operating supply voltage of 2 V, while its maximum is 6 V. It is made in a 4 x 2:1 configuration.