M41T94MH6E STMicroelectronics, M41T94MH6E Datasheet - Page 27

• Manufacturer Part Number: M41T94MH6E
• Description: IC RTC SRAM SERIAL 512BIT 28SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T94MH6E

• Memory Size: 44B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 64 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (SPI)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2823-5; M41T94MH6

M41T94
4.13
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
Table 8.
1. Default setting
Table 9.
1. BMB0-BMB4, RB0, RB1.
2. State of other control bits undefined.
3. UC = Unchanged
Initial power-up
(battery attach for
SNAPHAT
Subsequent power-up
(with battery backup)
t
REC
Condition
bit (TR)
0
0
1
®
)
(2)
t
Default values
REC
definitions
(3)
Table 9: Default
STOP bit (ST)
UC
TR
0
0
1
X
UC
ST
1
values).
HT
1
1
Out
UC
1
Min
96
40
50
FT
0
0
t
REC
AFE
0
0
time
ABE SQWE
0
0
200
2000
Max
98
(1)
Clock operations
0
0
WATCHDOG
register
Units
0
0
ms
ms
µs
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(1)