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參數(shù)資料
| 型號： | M41T94MQ6TR |
| 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： | PLASTIC, SOIC-16 |
| 文件頁數(shù)： | 25/40頁 |
| 文件大小： | 328K |
| 代理商： | M41T94MQ6TR |
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M41T94
DC and AC parameters
Table 13.
DC characteristics
Symb.
Parameter
Test condition(1)
1.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5V (except where noted).
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)
2.
RSTIN1 and RSTIN2 internally pulled-up to VCC through 100Kresistor. WDI internally pulled-down to VSS
through 100K
resistor.
Input leakage current
0V
≤V
IN ≤VCC
±1
A
ILO
(3)
3.
Outputs deselected.
Output leakage current
0V
≤V
OUT ≤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)
4.
For rechargeable back-up, VBAT (max) may be considered VCC.
V
VOH
Output high voltage(5)
5.
For SQW pin (CMOS).
IOH = –1.0mA
2.4
V
VOL
Output low voltage(5)
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 3.0V when VCC = 0V (during battery back-up mode).
IOL = 10mA
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 back-up switchover
2.5
V
Table 14.
Crystal electrical characteristics (externally supplied)
Symbol
Parameter(1)(2)
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 http://www.kdsj.co.jp for further information on this crystal type.
Typ
Min
Max
Unit
f0
Resonant frequency
32.768
kHz
RS
Series resistance
50
k
CL
Load capacitance
12.5
pF
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