LinCMOS 555 timer for low-power industrial timing
The Texas Instruments TLC555QDR is a LinCMOS 555-type timer/oscillator that runs up to 2.1 MHz while drawing 360 µA supply current.
TLC555QDR LinCMOS Timer, 2.1 MHz, 8-SOIC, -40 to 125°C
MPNTLC555QDR
End of Life
Texas Instruments TLC555QDR, LinCMOS series, Type 555 Timer/Oscillator (Single), 2.1 MHz, 5V ~ 15V supply, 360 µA supply current, -40°C ~ 125°C, 8-SOIC surface mount package.
$0.93Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesLinCMOS™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | 555 Type, Timer/Oscillator (Single) |
| Series | LinCMOS™ |
| Mounting | Surface Mount |
| Supply voltage | 5V ~ 15V |
| Current - supply | 360 µA |
| Frequency | 2.1MHz |
| Operating temperature | -40°C ~ 125°C |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
Product details
Frequently asked questions
Is TLC555QDR a direct replacement for NE555?
Pin-compatible in the same 8-pin DIP or SOIC footprint, yes — the TLC555QDR drops straight onto a board designed for the NE555. The key difference is the CMOS output stage: the TLC555QDR swings rail-to-rail and draws 360 µA supply current, versus the NE555's roughly 10 mA. At 2.1 MHz it also runs faster than the standard bipolar 555's typical 500 kHz limit. If your circuit relies on the bipolar 555's higher output drive current (200 mA sink/source), check the TLC555QDR's 100 mA output rating — it's lower, but sufficient for most logic-level and MOSFET-gate loads.
How does TLC555QDR differ from standard 555 timers?
The LinCMOS construction cuts supply current from ~10 mA to 360 µA typical, extends the maximum frequency to 2.1 MHz, and allows rail-to-rail output swing. The trade-off is lower output drive: 100 mA versus 200 mA for a bipolar 555. Operating temperature range also widens to -40°C to 125°C, covering automotive and industrial ambient conditions the commercial 555 (0°C to 70°C) cannot.
Is TLC555QDR available in tape and reel packaging?
Yes, the TLC555QDR suffix indicates it ships in Tape & Reel (TR) or Cut Tape (CT) form, which is the standard 8-SOIC carrier for pick-and-place assembly. The package / case is an 8-SOIC with 0.154" body width (3.90 mm).