应用功能: LinCMOSE定时器 The TLC555 is a monolithic timing circuit fabricated using the TI LinCMOSE process. The timer is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2 MHz. Because of its high input impedance, this device uses smaller timing capacitors than those used by the NE555. As a result, more accurate time delays and oscillations