m41t64 STMicroelectronics, m41t64 Datasheet - Page 5

• Manufacturer Part Number: m41t64
• Description: Serial Access Real-time Clock With Alarms
• Manufacturer: STMicroelectronics

Figure 7. M41T62 16-pin QFN Connections
Note: 1. SQW Output will default to 32KHz upon power-up.
Figure 8. M41T63 16-pin QFN Connections
Note: 1. SQW Output will default to 32KHz upon power-up.
Figure 9. M41T64 16-pin QFN Connections
Note: 1. Enabled on power-up.
2. Open Drain.
2. Open Drain.
2. Open Drain.
SQW
SQW
F
32K
V
V
V
XO
XO
XO
SS
(1)
SS
(1)
XI
XI
SS
XI
(1)
1
2
3
4
1
2
3
4
1
2
3
4
16
16
16
5
5
5
15
15
15
6
6
6
14
14
14
7
7
7
13
13
13
8
8
8
12
11
10
12
11
10
10
12
11
9
9
9
NC
IRQ/OUT
SCL
SDA
NC
WDO
SCL
SDA
NC
SQW
SCL
SDA
AI09101
AI09100
AI09190
(2)
(2)
(2)
Figure 10. M41T65 16-pin QFN Connections
Note: 1. Open Drain.
Table 2. Signal Names
IRQ/OUT
IRQ/FT/
WDO
SQW
SDA
OUT
F
SCL
V
V
XO
WDO
XI
32K
CC
SS
V
XO
SS
XI
(1)
1
2
3
4
Oscillator Input
Oscillator Output
Serial Data Input/Output
Serial Clock Input
Interrupt or OUT Output (Open
Drain)
Interrupt, Frequency Test, or OUT
Output (Open Drain)
Programmable Square Wave -
Defaults to 32KHz on Power-up
(Open Drain for M41T64 only)
Dedicated 32KHz Output (M41T64
only)
Watchdog Timer Output (Open
Drain)
Supply Voltage
Ground
16
5
15
6
14
7
M41T62/63/64/65
13
8
10
12
11
9
NC
IRQ/FT/OUT
SCL
SDA
AI09102
5/33
(1)