LMC555CMM National Semiconductor, LMC555CMM Datasheet

LMC555CMM

Manufacturer Part Number

LMC555CMM

Description

Timer IC

Manufacturer

National Semiconductor

Datasheets

1.LMC555CMM.pdf (12 pages)

2.LMC555CMM.pdf (12 pages)

Specifications of LMC555CMM

Frequency

3MHz

No. Of Pins

Peak Reflow Compatible (260 C)

Supply Voltage

15V

Current Rating

150A

Leaded Process Compatible

Mounting Type

Surface Mount

Timer Type

Timer

Package / Case

8-MSOP

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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Current page: 1 of 12
Download datasheet (322Kb)

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

range and low supply capability.

Block and Connection Diagrams

LMCMOS

™

is a trademark of National Semiconductor Corp.

and MDIP Packages

8-Pin SOIC, MSOP,

™

process extends both the frequency

Top View

DS008669

DS008669-1

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

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

supply

SMD package

8-Bump micro SMD

(bump side down)

Top View

February 2000

www.national.com

DS008669-9

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