µPower Oscillators 1 Hz to 26 MHz

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  • µPower Oscillators 1 Hz to 26 MHz

SiTime µPower MEMS oscillators are designed specifically for wearable, IoT, and mobile applications, where space and power are critical. They consume up to 90% less power and are up to 80% smaller than quartz oscillators. Plus, they are available in low frequencies that quartz cannot support.

For tuning output frequency by up to ±150,000 ppm, see our Digitally Controlled µPower XO.

1 Hz to 462.5 kHz Oscillator 1508 4-pin Package Top Bottom

1 Hz to 462.5 kHz Oscillators

The SiT1534 and SiT1569 are the first µPower oscillators capable of a frequency range between 1 Hz and 462.5 kHz in a 1.2 mm2 footprint. In the chip-scale package (CSP), these products reduce a timing device’s footprint by as much as 85% compared to existing 2.0 x 1.2 mm SMD quartz packages. Unlike XTALs, the SiT1534 oscillator output enables greater component placement flexibility and eliminates external load capacitors, thus saving additional component count and board space.

  • Factory programmable from 1 Hz to 462.5 kHz
  • Oscillator output drives multiple loads and eliminates XTALs
  • <±10 ppm frequency tolerance
  • Ultra-low-power oscillator: <1 µA
  • Small footprint available in 1.2 mm2 (1.5 x 0.8 mm) CSP
Device Datasheet Buy Now Frequency Stability(PPM) Output Type Supply Voltage(V) Temp. Range(°C) Package Size(mm2)
SiT1534 Buy Now 16 frequencies 75 100 250 LVCMOS NanoDrive™ 1.2 to 3.63 -10 to +70 -40 to +85 1.5x0.8 2.0x1.2
SiT1569 Buy Now 1 Hz to 462.5 kHz ±50 LVCMOS 1.62 to 3.63 -20 to +70 -40 to +85 1.5x0.8
1 Hz to 2.5 MHz Oscillator/TCXO 1508 4-pin Package Top Bottom

1 Hz to 2.5 MHz Oscillators/TCXO

With flexible frequencies, these ultra-small, µPower, low-frequency reference sources provide new architectural options in wearable, mobile, and IoT applications, where space and power are critical.

  • World's smallest oscillator footprint: 1.2 mm2 (1.5 x 0.8 mm) CSP
  • Oscillator output drives multiple loads and eliminates XTALs
  • Ultra-low power: 2.5 to 5.5 μA at 100 kHz
  • The SiT1576 TCXO provides ±5 ppm all-inclusive frequency stability for improved local timekeeping and system power
  • The SiT1580 TCXO uses the latest generation of EpiSeal® technology which hermetically seals the resonator, making it impervious to all small-molecule gases and immune to external atmospheric elements
Device Datasheet Buy Now Frequency Stability(PPM) Output Type Supply Voltage(V) Temp. Range(°C) Package Size(mm2)
SiT1576 Buy Now 1 Hz to 2.5 MHz ±5 ±20 LVCMOS 1.62 to 3.63 -20 to +70 -40 to +85 1.5x0.8
SiT1579 Buy Now 1 Hz to 2.5 MHz ±50 LVCMOS 1.62 to 3.63 -20 to +70 -40 to +85 1.5x0.8
SiT1581 Buy Now 1 Hz to 2.5 MHz ±50 LVCMOS 1.62 to 3.63 -20 to +70 -40 to +85 1.5x0.8
1 to 26 MHz Oscillator 1508 4-pin Package Top Bottom

1 to 26 MHz Oscillators

SiTime’s µPower MEMS oscillators are designed for wearable, IoT, and mobile applications, where space and power savings are critical. Our µPower oscillators consume up to 90% less power and up to 80% less space compared to quartz oscillators. Plus, they are available in low frequencies that quartz cannot support.

  • Smallest oscillator footprint: 1.2 mm2 (1.5 x 0.8 mm) CSP
  • Low power: 0.1 mW of active power consumption at 3 MHz
  • Oscillator output drives multiple loads and eliminates XTALs
  • For digitally controlled µPower oscillators, see SiT3901 DCXO
Device Datasheet Buy Now Frequency Stability(PPM) Output Type Supply Voltage(V) Temp. Range(°C) Package Size(mm2)
SiT8021 Buy Now 1 to 26 MHz ±50 ±100 LVCMOS 1.8 2.25 to 3.63 -20 to +70 -40 to +85 1.5x0.8
Image: 6-pin 2.0x1.6 Atna oscillator package, top & bottom

1 Hz to 262.14 kHz Automotive Oscillators

SiTime automotive MEMS 32-kHz oscillators can also support 17 other frequencies from 1 Hz to 262.144 kHz. With ultra-low power consumption, best-in-class frequency stability, and small size, these devices are ideal when space and power are critical. 

  • Small 1.32 mm2 (1.2 x 1.1 mm) footprint, up to 75% smaller compared to 2.0 x 1.2 mm SMD crystals (XTAL)
  • Ultra-low power at 490 nA
  • All-inclusive frequency stability at ±50 ppm, up to 105°C
  • LVCMOS output, plus new Reduced Swing technology to further minimize overall system power
  • Drives up to 100 pf of load, eliminating multiple 32.768 kHz crystals in a design
Device Datasheet Buy Now Frequency Stability(PPM) Output Type Supply Voltage(V) Temp. Range(°C) Package Size(mm2)
SiT1881 Buy Now 32.768 kHz 1 Hz to 262.14 kHz ±50 ±100 LVCMOS Reduced Swing 1.14 to 1.35 1.35 to 1.98 -40 to 105 1.2x1.1
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