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參數(shù)資料
| 型號： | M41ST84WMQ6F |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO16 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SOP-16 |
| 文件頁數(shù)： | 22/34頁 |
| 文件大?。?/td> | 298K |
| 代理商： | M41ST84WMQ6F |
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M41ST84W
DC and AC parameters
Table 12.
DC characteristics
Table 13.
Crystal electrical characteristics (externally supplied)
Sym
Parameter
Test condition(1)
1.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.7 to 3.6 V (except where noted).
M41ST84W
Unit
Min
Typ
Max
IBAT
Battery current OSC ON
TA = 25°C, VCC = 0 V,
VBAT = 3 V
400
500
nA
Battery current OSC OFF
50
nA
ICC1
Supply current
f = 400 kHz
0.75
mA
ICC2
Supply current (standby)
SCL, SDA = VCC – 0.3 V
or VSS + 0.3 V
0.50
mA
ILI
(2)
2.
RSTIN internally pulled-up to VCC through 100 KΩ resistor. WDI internally pulled-down to VSS through 100 KΩ resistor.
Input leakage current
0V
≤ VIN ≤ VCC
±1
A
Input leakage current (PFI)
–25
2
25
nA
ILO
(3)
3.
Outputs deselected.
Output leakage current
0V
≤ VOUT ≤ VCC
±1
A
VIH
Input high voltage
0.7VCC
VCC + 0.3
V
VIL
Input low voltage
–0.3
0.3VCC
V
VBAT
Battery voltage
2.5
3.0
3.5(4)
4.
For rechargeable backup, VBAT (max) may be considered VCC.
V
VOH
Output high voltage(5)
5.
For PFO and SQW pins (CMOS).
IOH = –1.0mA
2.4
V
VOL
Output low voltage
IOL = 3.0mA
0.4
V
Output low voltage (open drain)(6)
6.
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
3.0 V when VCC = 0 V (during battery backup mode).
IOL = 10mA
0.4
V
Pull-up supply voltage (open
drain)
RST, IRQ/FT/OUT
3.6
V
VPFD
Power fail deselect
2.55
2.60
2.70
V
VPFI
PFI input threshold
VCC = 3V(W)
1.225
1.250
1.275
V
PFI hysteresis
PFI Rising
20
70
mV
VSO
Battery backup switchover
2.5
V
Symbol
Parameter(1)(2)
1.
Load capacitors are integrated within the M41ST84W. 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
http://www.kds.info/index_en.htm for further information on this crystal type.
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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