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M41ST84YMH1TR Scheda tecnica(PDF) 8 Page - STMicroelectronics |
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M41ST84YMH1TR Scheda tecnica(HTML) 8 Page - STMicroelectronics |
8 / 31 page M41ST84Y, M41ST84W 8/31 Table 5. DC Characteristics Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 3.6V or 4.5 to 5.5V (except where noted). 2. RSTIN internally pulled-up to VCC through 100KΩ resistor. WDI internally pulled-down to VSS through 100KΩ resistor. 3. Outputs deselected. 4. For PFO and SQW pins (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 6. Crystal Electrical Characteristics (Externally Supplied) Note: 1. Load capacitors are integrated within the M41ST84Y/W. 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. 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. Sym Parameter Test Condition(1) M41ST84Y M41ST84W Unit Min Typ Max Min Typ Max IBAT Battery Current OSC ON TA = 25°C, VCC = 0V, VBAT = 3V 400 500 400 500 nA Battery Current OSC OFF 50 50 nA ICC1 Supply Current f = 400kHz 1.4 0.75 mA ICC2 Supply Current (Standby) SCL, SDA = VCC – 0.3V 1 0.50 mA ILI (2) Input Leakage Current 0V ≤ VIN ≤ VCC ±1 ±1 µA Input Leakage Current (PFI) –25 2 25 –25 2 25 nA ILO (3) Output Leakage Current 0V ≤ VOUT ≤ VCC ±1 ±1 µA VIH Input High Voltage 0.7VCC VCC + 0.3 0.7VCC VCC + 0.3 V VIL Input Low Voltage –0.3 0.3VCC –0.3 0.3VCC V VBAT Battery Voltage 2.5 3.0 3.5(6) 2.5 3.0 3.5(6) V VOH Output High Voltage(4) IOH = –1.0mA 2.4 2.4 V VOL Output Low Voltage IOL = 3.0mA 0.4 0.4 V Output Low Voltage (Open Drain)(5) IOL = 10mA 0.4 0.4 V VPFD Power Fail Deselect 4.20 4.40 4.50 2.55 2.60 2.70 V VPFI PFI Input Threshold VCC = 5V(Y) VCC = 3V(V) 1.225 1.250 1.275 1.225 1.250 1.275 V PFI Hysteresis PFI Rising 20 70 20 70 mV VSO Battery Back-up Switchover 2.5 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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