TLC555IP TLC555 LinCMOS(TM) 2.1-MHz, 250-µA, Low-Power Timer DIP8 1 Pack
Brand: Texas Instruments
Color: One Color

The TLC555 is a monolithic timing circuit fabricated using the TI LinCMOS 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 are possible. Power consumption is low across the full range of power-supply voltage. Like the NE555, the TLC555 has a trigger level equal to approximately one-third of the supply voltage and a threshold level equal to approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal (CONT). When the trigger input (TRIG) falls below the trigger level, the flip-flop is set and the output goes high. If TRIG is above the trigger level and the threshold input (THRES) is above the threshold level, the flip-flop is reset and the output is low. The reset input (RESET) can override all other inputs and can be used to initiate a new timing cycle. If RESET is low, the flip-flop is reset and the output is low. Whenever the output is low, a low-impedance path is provided between the discharge terminal (DISCH) and GND. All unused inputs must be tied to an appropriate logic level to prevent false triggering.

Very Low Power Consumption: 1 mW Typical at VDD = 5 V
Capable of Operation in Astable Mode
CMOS Output Capable of Swinging Rail to Rail
High Output Current Capability. Sink: 100 mA Typical. Source: 10 mA Typical
Output Fully Compatible With CMOS, TTL, and MOS