USD

TLC555 LinCMOS™ Timers

Texas Instruments offers the 2.1 MHz, 250 µA, low-power timers for general-purpose timing applications

Image of Texas Instruments' TLC555 LinCMOS™ TimersTexas Instruments' TLC555 is a monolithic timing circuit fabricated using the TI LinCMOS process. The timer is fully compatible with CMOS, TTL, and MOS logic, and operates at frequencies up to 2 MHz. Because of its high input impedance, this device uses smaller timing capacitors than those used by the NE555. As a result, more accurate time delays and oscillations are possible. Power consumption is low across the full range of power-supply voltage.

Like the NE555, the TLC555 has a trigger level equal to approximately one-third of the supply voltage and a threshold level equal to approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal (CONT). When the trigger input (TRIG) falls below the trigger level, the flip-flop is set and the output goes high. If TRIG is above the trigger level and the threshold input (THRES) is above the threshold level, the flip-flop is reset and the output is low. The reset input (RESET) can override all other inputs and can be used to initiate a new timing cycle. If RESET is low, the flip-flop is reset and the output is low. Whenever the output is low, a low-impedance path is provided between the discharge terminal (DISCH) and GND. All unused inputs must be tied to an appropriate logic level to prevent false triggering.

Features
  •  Very low power consumption:
    • 1 mW typical at VDD = 5 V
  • Capable of operation in astable mode
  • CMOS output capable of swinging rail-to-rail
  • High output current capability
    • Sink: 100 mA typical
    • Source: 10 mA typical
  • Output fully compatible with CMOS, TTL, and MOS
  • Low supply current reduces spikes during output transitions
  • Single-supply operation from 2 V to 15 V
  • Functionally interchangeable with the NE555; has same pinout
  • ESD protection exceeds 2000 V per MIL-STD-883C, method 3015.2
  • Available in Q-temp automotive
    • High-reliability automotive applications
    • Configuration control and print support
    • Qualification to automotive standards
Applications
  • Precision timing
  • Pulse generation
  • Sequential timing
  • Time delay generation
  • Pulse width modulation
  • Pulse position modulation
  • Linear ramp generator

TLC555 LinCMOS Timers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC OSC SGL TIMER 2.1MHZ 14TSSOPTLC555CPWRIC OSC SGL TIMER 2.1MHZ 14TSSOP1400 - ImmediateView Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555QDRIC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555CDRIC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555CDIC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555IDRIC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555IDIC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SINGLE TIMER 2.1MHZ 8SOTLC555CPSRIC OSC SINGLE TIMER 2.1MHZ 8SO1872 - Immediate
8000 - Factory Stock
View Details
IC OSC SINGLE TIMER 2.1MHZ 8-DIPTLC555CPIC OSC SINGLE TIMER 2.1MHZ 8-DIP0View Details
IC OSC SINGLE TIMER 2.1MHZ 8-DIPTLC555IPIC OSC SINGLE TIMER 2.1MHZ 8-DIP4529 - Immediate
3800 - Factory Stock
View Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555QDRQ1IC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555QDRG4IC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SINGLE TIMER 2.1MHZ 8SOTLC555CPSIC OSC SINGLE TIMER 2.1MHZ 8SO124 - Immediate
1360 - Factory Stock
View Details
IC OSC SGL TIMER 2.1MHZ 8-SOICTLC555CDRG4IC OSC SGL TIMER 2.1MHZ 8-SOIC0View Details
IC OSC SINGLE TIMER 2.1MHZ 8-DIPTLC555CPE4IC OSC SINGLE TIMER 2.1MHZ 8-DIP0View Details
Published: 2017-08-21