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M41T62 Datasheet(PDF) 33 Page - STMicroelectronics |
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M41T62 Datasheet(HTML) 33 Page - STMicroelectronics |
33 / 40 page M41T62/63/64/65 DC and AC parameters 33/40 Table 16. Oscillator characteristics Figure 25. Bus timing requirements sequence Table 15. Crystal electrical characteristics Sym Parameter(1)(2) 1. Externally supplied if using the QFN16 package. STMicroelectronics recommends the Citizen CFS-145 (1.5x5mm) and the KDS DT-38 (3x8mm) for thru-hole, or the KDS DMX-26S (3.2x8mm) for surface-mount, tuning fork-type quartz crystals. KDS can be contacted at kouhou@kdsj.co.jp or http://www.kdsj.co.jp. Citizen can be contacted at csd@citizen-america.com or http://www.citizencrystal.com. 2. Load capacitors are integrated within the M41T6x. Circuit board layout considerations for the 32.768kHz crystal of minimum trace lengths and isolation from RF generating signals should be taken into account. Min Typ Max Units fO Resonant frequency 32.768 kHz RS Series resistance (T A = –40 to 70°C, oscillator start-up at 2.0V) 75(3)(4) 3. Guaranteed by design. 4. RS (max) = 65kΩ for TA = –40 to 85°C and oscillator start-up at 1.5V. k Ω CL Load capacitance 6 pF Symbol Parameter Conditions Min Typ Max Unit VSTA Oscillator start voltage ≤10 seconds 1.5 V tSTA Oscillator start time VCC = 3.0V 1 s Cg XIN 12 pF Cd XOUT 12 pF IC-to-IC frequency variation (1) 1. Reference value. TA = 25°C, VCC = 3.0V, CMJ-145 (CL = 6pF, 32,768Hz) manufactured by citizen. –10 +10 ppm AI00589 SDA P tSU:STO tSU:STA tHD:STA SR SCL tSU:DAT tF tHD:DAT tR tHIGH tLOW tHD:STA tBUF S P |
Similar Part No. - M41T62_06 |
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Similar Description - M41T62_06 |
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