LMC555

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World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz

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Product details

Parameters

VCC (Min) (V) 1.5 VCC (Max) (V) 15 Iq (Typ) (uA) 50 Rating Catalog Operating temperature range (C) -40 to 125, -40 to 85 open-in-new Find other Real-time clocks (RTCs) & timers

Package | Pins | Size

DSBGA (YPB) 8 0 mm² 1.447 x 1.473 PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Real-time clocks (RTCs) & timers

Features

  • Industry’s Fastest Astable Frequency of 3 MHz
  • Available in Industry’s Smallest 8-Bump DSBGA Package (1.43mm × 1.41mm)
  • Less Than 1 mW Typical Power Dissipation at 5 V Supply
  • 1.5 V Supply Operating Voltage Ensured
  • Output Fully Compatible With TTL and CMOS Logic at 5 V Supply
  • Tested to −10 mA, 50 mA Output Current Levels
  • Reduced Supply Current Spikes During Output Transitions
  • Extremely Low Reset, Trigger, and Threshold Currents
  • Excellent Temperature Stability
  • Pin-for-Pin Compatible With 555 Series of Timers

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Description

The LMC555 device is a CMOS version of the industry standard 555 series general-purpose timers. In addition to the standard package (SOIC, VSSSOP, and PDIP) the LMC555 is also available in a chip-sized package (8-bump DSBGA) using TI’s DSBGA package technology. The LMC555 offers 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 astable mode the oscillation frequency and duty cycle are accurately set by two external resistors and one capacitor. The use of TI’s LMCMOS process extends both the frequency range and the low supply capability.

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Technical documentation

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Type Title Date
* Datasheet LMC555 CMOS Timer datasheet (Rev. M) May 10, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
249
Description

The LMG5200POLEVM-10 EVM is designed to evaluate the LMG5200 GaN power stage and the TPS53632G half-bridge point-of-load controller in a 48V to 1V application.  This EVM implements the 48V-1V converter as a single-stage hard-switched half-bridge with current-doubler rectifier.  The EVM (...)

Features
  • Input voltage from 36V to 75V
  • Output from 0.5 Volts to 1.5 Volts at up to 50 A
  • Switching frequency up to 1 MHz
  • DCAP+ control architecture provides fast transient response

Design tools & simulation

SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Many TI reference designs include the LMC555 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
DSBGA (YPB) 8 View options
PDIP (P) 8 View options
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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Support & training

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