M41T94(2003) 查看數據表（PDF） - STMicroelectronics
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M41T94 Datasheet PDF : 31 Pages
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Figure 3. Logic Diagram
XI (1)
XO (1)
SCL
SDI
E
RSTIN1
RSTIN2
WDI
THS
VCC VBAT (1)
M41T94
RST
IRQ/FT/OUT
SQW
SDO
VSS
AI03683
Note: 1. For SO16 package only.
Figure 4. 16-pin SOIC Connections
XI
XO
RST
WDI
RSTIN1
RSTIN2
VBAT
VSS
1
16
2
15
3
14
4
13
5 M41T94 12
6
11
7
10
8
9
AI03684
VCC
E
IRQ/FT/OUT
THS
SDI
SQW
SCL
SDO
M41T94
Table 1. Signal Names
E
Chip Enable
IRQ/FT/OUT
Interrupt/Frequency Test/Out
Output (Open Drain)
RST
Reset Output (Open Drain)
RSTIN1
Reset 1 Input
RSTIN2
Reset 2 Input
SCL
Serial Clock Input
SDI
Serial Data Input
SDO
Serial Data Output
SQW
Square Wave Output
THS
Threshold Select Pin
WDI
Watchdog Input
XI (1)
Oscillator Input
XO (1)
Oscillator Output
VBAT (1)
Battery Supply Voltage
VCC
Supply Voltage
VSS
Ground
Note: 1. For SO16 package only.
Figure 5. 28-pin SOIC Connections
SQW
NC
NC
NC
NC
NC
NC
WDI
RSTIN1
RSTIN2
NC
NC
NC
VSS
1
28
2
27
3
26
4
25
5
24
6
23
7
22
M41T94
8
21
9
20
10
19
11
18
12
17
13
16
14
15
AI03685
VCC
E
IRQ/FT/OUT
NC
NC
THS
NC
NC
SCL
NC
RST
SDI
SDO
NC
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