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M41T56C64 Datasheet(PDF) 6 Page - STMicroelectronics

Part # M41T56C64
Description  Serial Real Time Clock with 56 bytes of NVRAM64 Kbit (8192 bit x 8) EEPROM
PDF  19 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T56C64 Datasheet(HTML) 6 Page - STMicroelectronics

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Pin settings
M41T56C64
6/19
2
Pin settings
2.1
Pin description
2.2
Pin connections
Figure 2.
18-pin SOIC connection
1.
No connect (NC) pins should be tied to VSS
2.
No function (NF) pins should be tied to VSS. Pins 2 and 3, and pins 16 and 17 are internally shorted
together.
3.
Open drain output
Table 1. Signal names
FT/OUT (1)
1.
Open drain output
Frequency test / output driver (open drain)
SDA
Serial data address input / output
SCL
Serial clock
WC
Write control
E0, E1, E2
Chip enables
VBAT
Battery supply voltage
VCC
Supply voltage
VSS
Ground
NC (2)
2.
No connect (NC) pins should be tied to VSS.
No connect
NF (3)
3.
No function (NF) pins should be tied to VSS. Pins 2 and 3, and pins 16 and 17 are internally shorted
together.
No function
AI09124
8
2
3
4
5
6
7
9
12
11
10
18
17
16
15
14
13
1
WC
E1
NF
(2)
NF
(2)
NC
(1)
NF
(2)
NF
(2)
NC
(1)
VSS
VBAT
VCC
E0
NC
(1)
E2
SDA
SCL
NC
(1)
FT/OUT
(3)
M41T56
+
M24C64
(EEPROM)



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