QTK252-32.768KBE-T

QTK252 kHz CMOS Oscillator Fuel The Digital World Features ● ● ● ● ● ● ● Applications Frequency range : 32.768 kHz SMD seam sealing ceramic package Supply voltage : 1.8V ~ 3.3V CMOS output Tri-state function available External dimensions (mm) L : 2.5 x W : 2.0 x H : 0.8 RoHS compliant & Pb free ● ● ● ● ● ● ● ● Real-time clock (RTC) WLAN, NFC, SiP Modules PC, NB, Tablet, Computer peripherals Audio, Video, Gaming, DSC, STB Server, Switch, Router Security devices, Smart meters Consumer products Internet of Things (IoT) Electrical Characteristics Item QTK252 Frequency Range (F0) 32.768 kHz Conditions ±25ppm -10°C ~ +70°C ±50ppm, ±25ppm -40°C ~ +85°C Frequency Stability (Fstab) -10°C ~ +70°C Operating Temperature Range (TOTR) -40°C ~ +85°C Supply Voltage (VDD) Current Consumption (IDD) 1.8V, 2.5V, 3.3V 3 mA Max. Output Type CMOS Output Load (CL) 15 pF Output Voltage High (VOH) 90% VDD Min. Output Voltage Low (VOL) 10% VDD Max. Rise & Fall Time (Tr / Tf) 200 ns Max. Duty Cycle 45% ~ 55% Start-up Time 10 ms Max. Enable Voltage High, Logic "1" 70% VDD Min. Enable Voltage Low, Logic "0" 30% VDD Max. Aging (Faging) ±5 ppm Max. Storage Temperature Range (TSTR) VDD ± 10% 10% ~ 90% of VDD Input to Pin1 Note [1] at 25°C±3°C,first year -55°C ~ +125°C Notes: [1] Output will be enable if Pin1 is Logic "1" or Open; Output will be disable if Pin1 is Logic "0". Rev. 1.01 Page 1 www.qstproducts.com QTK252 kHz CMOS Oscillator Fuel The Digital World Dimensions (Unit: mm) Ordering Information QTK252 - 32.768K - B E - T Supply Voltage Packaging Method B C D T 3.3 V 2.5 V 1.8 V Tape & Reel Frequency Stability A E D Rev. 1.01 ± 25 ppm ( -10°C ~ +70°C ) ± 50 ppm ( -40°C ~ +85°C ) ± 25 ppm ( -40°C ~ +85°C ) Page 2 www.qstproducts.com QTK252 kHz CMOS Oscillator Fuel The Digital World Packing (Unit: mm) (Unit: mm) Reflow Profile Solder melting point : 220°C ± 10°C, 60 sec. Min. Peak temperature : 260°C ± 10°C, 10 sec. Min. (°C) 10 sec 260 220 180 150 120 sec Rev. 1.01 60 sec Page 3 Time (sec) www.qstproducts.com