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M41TTHSMQ6TR Datasheet(PDF) 10 Page - STMicroelectronics |
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M41TTHSMQ6TR Datasheet(HTML) 10 Page - STMicroelectronics |
10 / 31 page M41T94 10/31 Table 6. DC Characteristics Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5V (except where noted). 2. RSTIN1 and RSTIN2 internally pulled-up to VCC through 100KΩ resistor. WDI internally pulled-down to VSS through 100KΩ resistor. 3. Outputs Deselected. 4. For SQW pin (CMOS). 5. For IRQ/FT/OUT, RST pins (Open Drain): if pulled-up to supply other than VCC, this supply must be equal to, or less than 3.0V when VCC = 0V (during battery back-up mode). 6. For rechargeable back-up, VBAT (max) may be considered VCC. Table 7. Crystal Electrical Characteristics (Externally Supplied) Note: 1. Load capacitors are integrated within the M41T94. Circuit board layout considerations for the 32.768 kHz crystal of minimum trace lengths and isolation from RF generating signals should be taken into account. These characteristics are externally supplied. 2. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning Fork Type (thru-hole) or the DMX-26S: 1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. KDS can be contacted at kouhou@kdsj.co.jp or ht- tp://www.kdsj.co.jp for further information on this crystal type. Symb. Parameter Test Condition(1) Min Typ Max Unit IBAT Battery Current OSC ON TA = 25°C, VCC = 0V, VBAT = 3V 400 500 nA Battery Current OSC OFF 50 nA ICC1 Supply Current f = 2 MHz 2 mA ICC2 Supply Current (Standby) SCL, SDI = VCC – 0.3V 1.4 mA ILI (2) Input Leakage Current 0V ≤ VIN ≤ VCC ±1 µA ILO (3) Output Leakage Current 0V ≤ VOUT ≤ VCC ±1 µA VIH Input High Voltage 0.7VCC VCC + 0.3 V VIL Input Low Voltage –0.3 0.3VCC V VBAT Battery Voltage 2.5 3.5(6) V VOH Output High Voltage(4) IOH = –1.0mA 2.4 V VOL Output Low Voltage(4) IOL = 3.0mA 0.4 V Output Low Voltage (Open Drain)(5) IOL = 10mA 0.4 VPFD Power Fail Deselect (THS = VCC) 4.20 4.40 4.50 V Power Fail Deselect (THS = VSS) 2.55 2.60 2.70 VSO Battery Back-up Switchover 2.5 V Symbol Parameter(1,2) Typ Min Max Unit f0 Resonant Frequency 32.768 kHz RS Series Resistance 50 k Ω CL Load Capacitance 12.5 pF |
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