M41ST84W_08 STMICROELECTRONICS [STMicroelectronics], M41ST84W_08 Datasheet - Page 26

• Manufacturer Part Number: M41ST84W_08
• Description: 3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Clock operation
3.14
Table 7.
1. Default setting
Table 8.
1. WDS, BMB0-BMB4, RB0, RB1.
2. State of other control bits undefined.
3. UC = Unchanged
26/34
Initial power-up
(battery attach)
Subsequent power-up (with battery
backup)
t
REC
(3)
bit (TR)
0
0
1
Condition
Initial power-on defaults
Upon initial application of power to the device, the following register bits are set to a '0' state:
watchdog register, TR, FT, AFE, ABE, and SQWE. The following bits are set to a '1' state:
ST, OUT, and HT (see
t
Default values
rec
(2)
definitions
STOP bit (ST)
UC
Table 8 on page
TR
X
0
1
0
UC
ST
1
HT
1
1
26).
Out
UC
1
Min
96
40
50
FT
0
0
t
rec
AFE
time
0
0
ABE SQWE
0
0
200
2000
Max
98
(1)
0
0
WATCHDOG
register
M41ST84W
Units
0
0
ms
ms
µs
(1)