IC, Timer CMOS/TTL Logic, DIP-8
The TLC551 is a dip package monolithic timing circuit and 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.
Specifications:
Supply voltage, VDD: max. 15V
Input voltage range, VI (any input): –0.3 to VDD
Sink Current, discharge or output: 150mA
Source current, output, IO: 15 mA