3.3 or 5.0V version 5 x 7 mm Footprint Low power consumption RoHS Compliant (Note 7 Exemption) ECS-3951C/3953C SMD CLOCK OSCILLATOR ECS-3951C (5V) and ECS-3953C (3.3V) miniature SMD crystal controlled, low current clock oscillator in a ceramic SMD package. OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS ECS-3951C (+5V) CONDITIONS MIN Frequency Range 1.000 0 -40 -55 +4.5 Standard Extended (N Option) Operating Temperature Storage Temperature Supply Voltage Standard Option B Option C 1.8 to 30.0 MHz 30.1 to 35.0 MHz 35.1 to 50.0 MHz 50.1 to 66.0 MHz 66.1 to 80.0 MHz @ 50% VDD level 10% VDD to 90% level VOL VOH HCMOS 1.8 to 36.0 MHz 36.1 to 80.0 MHz VOL=0.5V/0.33V VOL=4.5V/2.97V Frequency Stability * Input Current Output Symmetry Rise and Fall Times "0" level "1" level Output Load Startup time Output Current TYP +5.0 ECS-3953C (+3.3V) MAX MIN 80.000 +70 +85 +125 +5.5 ± 100 ± 50 ± 25 10 15 30 30 50 40/60 10 1.000 0 -40 -55 +3.0 10% * Vcc 90% * Vcc TYP +3.3 UNITS MAX 125.000 +70 +85 +125 +3.6 ± 100 ± 50 ± 25 8 8 12 15 30 40/60 15 MHz °C °C °C VDC ppm ppm ppm mA mA mA mA % % ns VDC VDC pF ms ms mA mA ns 10% * Vcc 90% 90% *VDD Vcc 15 5 10 4 -4 100 Enable/Disable Time 15 5 10 4 -4 150 DIMENSIONS (mm) Pin Connections Pin #1 Pin #2 Pin #3 Pin #4 Tri-State ** Ground Output Vcc Tri-State Control Voltage Pad 1 Open Vcc x 0.9 Min. Vcc x 0.1 Max. Figure 1) Top, Side and Bottom views Figure 2) Suggested Land Pattern - Series - 3951C = +5.0V 3953C = +3.3V Frequency Abbreviation 500 = 50.000 MHz See Frequency Abbreviations 1105 South Ridgeview Road z - Stability Blank = ± 100 ppm B = ± 50 ppm C = ± 25 ppm Olathe, KS 66062 z No Oscillation * Note: Inclusive of 25°C tolerance, operating temperature,input voltage change, load change, shock and vibration. ** Note: Internal pullup resistor from pin 1 to 4 allows active output if pin 1 is left open. PART NUMBERING GUIDE: Example ECS-3953C-500-B ECS Pad 3 Oscillation Oscillation Temperature Blank = 0 ~ +70°C M = -20 ~ +70°C N = -40 ~ +85°C Phone: 913.782.7787 z ECS-3953C is also compatible with a supply voltage of +3.0V DC ±0.3V Fax: 913.782.6991 z www.ecsxtal.com