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參數(shù)資料
| 型號： | M41T94MQ6E |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO16 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SOIC-16 |
| 文件頁數(shù)： | 24/41頁 |
| 文件大?。?/td> | 352K |
| 代理商： | M41T94MQ6E |
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DC and AC parameters
M41T94
Table 13.
DC characteristics
Symb.
Parameter
Test condition(1)
Min
Typ
Max
Unit
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 = 2 MHz
2
mA
ICC2
Supply current (standby)
SCL, SDI = VCC – 0.3 V
1.4
mA
ILI
(2)
Input leakage current
0 V
≤ VIN ≤ VCC
±1
A
ILO
(3)
Output leakage current
0 V
≤ 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
3.5(4)
V
VOH
Output high voltage(5)
IOH = –1.0 mA
2.4
V
VOL
Output low voltage(5)
IOL = 3.0 mA
0.4
V
Output low voltage (open drain)(6)
IOL = 10 mA
0.4
Pull-up supply voltage (open drain)
RST, IRQ/FT/OUT
5.5
V
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 backup switchover
2.5
V
1.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5 V (except where noted).
2.
RSTIN1 and RSTIN2 internally pulled up to VCC through 100 KΩ resistor. WDI internally pulled-down to VSS through
100 K
Ω resistor.
3.
Outputs deselected.
4.
For rechargeable back-up, VBAT (max) may be considered VCC.
5.
For SQW pin (CMOS).
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).
Table 14.
Crystal electrical characteristics (externally supplied)
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
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. For contact information on this crystal type,
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