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LMC555CMM - Texas Instruments

Description: Timers & Support Products A 926-LMC555CMM/NOPB

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LMC555CMM Details

  • Manufacturer Part Number:

    LMC555CMM

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    MSOP

  • Pin Count:

    8

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1997-05-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    PULSE; RECTANGULAR

  • JESD-30 Code:

    S-PDSO-G8

  • JESD-609 Code:

    e0

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Frequency-Max:

    3 MHz

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.09 mm

  • Supply Current-Max (Isup):

    0.4 mA

  • Supply Voltage-Max (Vsup):

    15 V

  • Supply Voltage-Min (Vsup):

    1.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Width:

    3 mm

LMC555CMM Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the LMC555CMM is 3 MHz, but it can be pushed to 5 MHz with some external component tuning.
  • To ensure the oscillator starts reliably, make sure to use a high-quality capacitor (e.g., ceramic or film) for the timing capacitor (Ct) and a low-ESR capacitor for the supply bypass capacitor (Cb). Also, ensure the power supply is stable and noise-free.
  • The recommended value for Rt is between 1 kΩ and 100 kΩ, and for Ct is between 10 nF and 100 nF. The exact values depend on the desired frequency and application.
  • To reduce power consumption, use a lower supply voltage (e.g., 3.3 V instead of 5 V), reduce the operating frequency, or use a lower-power version of the chip (e.g., LMC555QM). You can also consider using a more power-efficient alternative, such as a low-power timer IC.
  • Yes, the LMC555CMM can be used as a VCO by applying a control voltage to the threshold pin (pin 6). However, the frequency range and linearity may not be as good as a dedicated VCO IC.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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