MRT-001-32.768khz smt low power real time oscillator ? ? low power consumption ? +1.2 vdc to +5.50 vdc operation ? small smt ceramic package ? rohs compliant ? tight frequency tolerance ? mmd components , 30400 esperanza, rancho santa margarita, ca, 92688 phone: (949) 709-5075, fax: (949) 709-3536, www.mmdcomp.com sales@mmdcomp.com free compliant rohs pb specifications subject to change without notice page 1 of 2 revision: 130205b ? ? electrical charactertics parameter value frequency output 32.768khz frequency tolerance (tighter tolerance on request) 20 ppm supply voltage (vdd ) +1.20 vdc to +5.50 vdc supply current (vdd = +3.00 vdc) 0.30 a typ / 0.50a max output cmos output current i oh +1ma i ol -1ma symmetry 40%/60% logic ?1? (v oh ) v dd ? 0.40 vdc min logic ?0? (v ol ) gnd + 0.40 vdc max rise / fall time 70 nsec max start up time 0.5 sec max enable/disable enable (high) 80% v dd min enable/disable enable (low) 20% v dd max voltage coefficient 1.5 ppm/v max aging first year max at +25c 3.0 ppm turnover temperature +25c 5c typ frequency vs. temperature -.035 ppm/c 2 (t-t o ) 2 10% ppm storage temperature range -55c to +125c operating temperature range -40c to +85c ? environmental & mechanical specification shock mil-std-883, method 2002, cond b solderability mil-std-883, method 2003 solvent resistance mil-std-202, method 215 vibration mil-std-883, method 2007, cond a gross leak test mil-std-883, method 1014, cond c fine leak test mil-std-883, method, method 1014, cond a2 msl level 3 per ipc/jedec j-std 20 reflow conditions +260c max 20 sec per ipc/jedec j-std 20 ?
MRT-001-32.768khz smt low power real time oscillator ? ? specifications subject to change without notice page 2 of 2 revision: 130205b 3.20 [.126] 1.50 [.059] 1.00 [.039] 0.40 [.016] 0.75 [.030] 0.50 [.020] m32.768 syww 1 2 3 4 pin connections supply enable/disable pin 4 pin 2 pin 3 pin 1 ground output enable/ disable pin 1 80% vdd min output high impedance pin 3 20% vdd max 2.70 [.106] 1.20 [.047] 0.80 [.031] 1.00 [.039] suggested solder pads notes: 1. applicable standards / specification: ansi y14.5m, dimensions and tolerances. 2. dimensions are millimeters [inches]. millimeters ar e the controlling dimensions, inches are for reference only. 3. the pins numbers are for reference only and are not to be marked on the unit. 4. an external bypass capacitor is recommended. 5. tolerances are 0.25 [.010] for two place decimals and 0.5 [.02] for one place decimals. 6. pads matl 6.1. base or under conductor: nickel thickness 1.3 microns to 1.8 microns 6.2. final plating: gold (99.97%) 0.8 microns to 1.2 microns do not scale drawing third angle projection marking detail first line = m32.768 32.768 = 32.768 khz output frequency m=mmd second line = syww (not be exceed 5 characters) s= internal code (can be 1 or 2 characters) yww = date code (year/week) y= first digit of year of manufacture ww = week of manufacture pin 1 indicator pin 1 indicator ? ?
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