TLC551Y

TLC551, TLC551Y LinCMOS™ TIMERS SLFS044B – FEBRUARY 1984 – REVISED SEPTEMBER 1997 D Very Low Power Consumption 1 mW Typ at VDD = 5 V D Capable of Operation in Astable Mode D CMOS Output Capable of Swinging Rail to Rail D High Output-Current Capability D, DB, P, OR PW PACKAGE (TOP VIEW) GND TRIG OUT RESET 1 2 3 4 8 VDD 7 DISCH 6 THRES 5 CONT Sink 100 mA Typ Source 10 mA Typ functional block diagram D Output Fully Compatible With CMOS, TTL, and MOS D Low Supply Current Reduces Spikes During Output Transitions D Single-Supply Operation From 1 V to 15 V D Functionally Interchangeable With the NE555; Has Same Pinout CONT VDD 5 8 R 6 THRES R RESET 4 R1 R1 S 3 OUT D ESD Protection Exceeds 2000 V Per TRIG 2 MIL-STD-883C, Method 3015.2 description R 1 7 DISCH The TLC551 is a monolithic timing circuit fabricated using the TI LinCMOS™process. The GND RESET can override TRIG, which can override THRES. timer is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2 MHz. Compared to the NE555 timer, this device uses smaller timing capacitors because of its high input impedance. 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 TLC551 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 co...