The TLC556CN is a monolithic Timing Circuit fabricated using the TI LinCMOS? process, which provides full compatibility with CMOS, TTL and MOS logic and operates at frequencies up to 2MHz. Accurate time delays and oscillations are possible with smaller, less-expensive timing capacitors than the NE556 because of the high input impedance. Power consumption is low across the full range of power supply voltages. Like the NE556, the TLC556 has a trigger level approximately one-third of the supply voltage and a threshold level approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset input can override all other inputs and can be used to initiate a new timing cycle.
- Very low power consumption
- Capable of operation in astable mode
- CMOS Output capable of swinging rail to rail
- High output-current capability
- Output fully compatible with CMOS, TTL and MOS
- Low supply current reduces spikes during output transitions
- Functionally interchangeable with the NE556, has same pin-out
时钟与计时
(EN)
