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M41ST85WMH Datasheet(PDF) 5 Page - STMicroelectronics

No. de pieza M41ST85WMH
Descripción Electrónicos  5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41ST85WMH Datasheet(HTML) 5 Page - STMicroelectronics

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M41ST85Y, M41ST85W
Figure 3. Logic Diagram
Note: 1. For 28-pin, 300mil embedded crystal SOIC only.
Table 1. Signal Names
Note: 1. For 28-pin, 300mil embedded crystal SOIC only.
Figure 4. 28-pin SOIC Connections
Figure 5. 28-pin, 300mil SOIC (MX)
Connections
Note: No Function (NF) pins should be tied to VSS. Pins 1, 2, 3, and
4 are internally shorted together.
AI03658
SCL
VCC
M41ST85Y
M41ST85W
EX
VSS
VBAT
(1)
SDA
RSTIN1
IRQ/FT/OUT
SQW
WDI
RSTIN2
PFI
ECON
RST
PFO
VOUT
ECON
Conditioned Chip Enable Output
EX
External Chip Enable
IRQ/FT/OUT
Interrupt/Frequency Test/Out Output
(Open Drain)
PFI
Power Fail Input
PFO
Power Fail Output
RST
Reset Output (Open Drain)
RSTIN1
Reset 1 Input
RSTIN2
Reset 2 Input
SCL
Serial Clock Input
SDA
Serial Data Input/Output
SQW
Square Wave Output
WDI
Watchdog Input
VCC
Supply Voltage
VOUT
Voltage Output
VSS
Ground
VBAT
(1)
Battery Supply Voltage
NC
No Connect
NF
No Function
AI03659
8
2
3
4
5
6
7
9
10
11
12
13
14
22
21
20
19
18
17
16
15
28
27
26
25
24
23
1
RSTIN1
RSTIN2
NC
NC
NC
NC
WDI
NC
NC
IRQ/FT/OUT
NC
VOUT
NC
NC
EX
NC
PFI
SCL
NC
NC
PFO
ECON
VSS
SDA
RST
NC
SQW
VCC
M41ST85Y
M41ST85W
AI06370d
8
2
3
4
5
6
7
9
10
11
12
13
14
22
21
20
19
18
17
16
15
28
27
26
25
24
23
1
RSTIN1
RSTIN2
NC
NF
NC
NC
SQW
WDI
NF
NC
IRQ/FT/OUT
NC
VOUT
NC
EX
PFI
SCL
NC
PFO
ECON
VSS
VBAT
NC
SDA
RST
NF
NF
VCC
M41ST85Y
M41ST85W


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