M41T56M6TR STMicroelectronics, M41T56M6TR Datasheet - Page 15

• Manufacturer Part Number: M41T56M6TR
• Description: Real Time Clock Serial RTC
• Manufacturer: STMicroelectronics

Specifications of M41T56M6TR

• Function: Clock, Calendar
• Rtc Memory Size: 64 B
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: SOIC-8
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.2
Note:
3.3
Figure 11. Crystal accuracy across temperature
Figure 12. Clock calibration
Output driver pin
When the FT Bit is not set, the FT/OUT pin becomes an output driver that reflects the
contents of D7 of the Control Register. In other words, when D6 of location 7 is a '0' and D7
of location 7 is a '0' and then the FT/OUT pin will be driven low.
The FT/OUT pin is open drain which requires an external pull-up resistor.
Initial power-on defaults
Upon initial application of power to the device, the FT Bit will be set to a '0' and the OUT Bit
will be set to a '1.' All other Register bits will initially power-on in a random state.
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
Frequency (ppm)
–100
–120
–140
–160
–20
–40
–60
–80
20
0
–40
–30
–20
–10
0
10
Temperature °C
T
ΔF = K x (T –T
K = –0.036 ppm/°C
F
O
= 25°C ± 5°C
20
30
O
)
2
40
2
± 0.006 ppm/°C
50
60
2
70
80
AI00999b
AI00594B
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