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M41ST84WMH6TR View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
M41ST84WMH6TR Datasheet PDF : 31 Pages
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M41ST84Y, M41ST84W
Table 5. DC Characteristics
Sym
Parameter
Test
Condition(1)
M41ST84Y
Min Typ Max
M41ST84W
Unit
Min Typ Max
Battery Current OSC
ON
IBAT
Battery Current OSC
OFF
TA = 25°C,
VCC = 0V,
VBAT = 3V
400
500
50
400
500
nA
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
Input Leakage Current 0V VIN VCC
±1
±1
µA
ILI(2) 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
Output Low Voltage
IOL = 3.0mA
0.4
VOL Output Low Voltage
(Open Drain)(5)
IOL = 10mA
0.4
0.4
V
0.4
V
VPFD Power Fail Deselect
4.20 4.40 4.50
2.55 2.60 2.70
V
PFI Input Threshold
VPFI
PFI Hysteresis
VCC = 5V(Y)
VCC = 3V(V)
PFI Rising
1.225 1.250 1.275
20
70
1.225 1.250 1.275 V
20
70
mV
VSO
Battery Back-up
Switchover
2.5
2.5
V
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 100Kresistor. WDI internally pulled-down to VSS through 100Kresistor.
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)
Symbol
Parameter(1,2)
Typ
Min
Max
Unit
f0
Resonant Frequency
32.768
kHz
RS
Series Resistance
50
k
CL
Load Capacitance
12.5
pF
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.
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