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LMC555CMX Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LMC555CMX Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 12 page  LMC555 CMOS Timer General Description The LMC555 is a CMOS version of the industry standard 555 series general purpose timers. In addition to the stan- dard package (SOIC, MSOP, and MDIP) the LMC555 is also available in a chip sized package (8 Bump micro SMD) using National’s micro SMD package technology. The LMC555 of- fers the same capability of generating accurate time delays and frequencies as the LM555 but with much lower power dissipation and supply current spikes. When operated as a one-shot, the time delay is precisely controlled by a single external resistor and capacitor. In the stable mode the oscil- lation frequency and duty cycle are accurately set by two ex- ternal resistors and one capacitor. The use of National Semi- conductor’s LMCMOS™ process extends both the frequency range and low supply capability. Features n Less than 1 mW typical power dissipation at 5V supply n 3 MHz astable frequency capability n 1.5V supply operating voltage guaranteed n Output fully compatible with TTL and CMOS logic at 5V supply n Tested to −10 mA, +50 mA output current levels n Reduced supply current spikes during output transitions n Extremely low reset, trigger, and threshold currents n Excellent temperature stability n Pin-for-pin compatible with 555 series of timers n Available in 8 pin MSOP Package and 8-Bump micro SMD package Block and Connection Diagrams LMCMOS™ is a trademark of National Semiconductor Corp. 8-Pin SOIC, MSOP, and MDIP Packages DS008669-1 Top View 8-Bump micro SMD DS008669-9 Top View (bump side down) February 2000 © 2000 National Semiconductor Corporation DS008669 www.national.com |
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