M41ST84WMQ6E STMicroelectronics, M41ST84WMQ6E Datasheet - Page 20

• Manufacturer Part Number: M41ST84WMQ6E
• Description: IC RTC 3.0V 512BIT NVRAM 16SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST84WMQ6E

• Memory Size: 64B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2802-5; M41ST84WMQ6

Clock operation
Figure 12. Crystal accuracy across temperature
Figure 13. Clock calibration
20/36
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
Frequency (ppm)
–100
–120
–140
–160
–20
–40
–60
–80
20
0
–40
–30
–20
–10
0
Doc ID 7530 Rev 9
10
Temperature °C
T
K = –0.036 ppm/°C
F
O
= 25°C ± 5°C
= K x (T –T
20
30
O
)
2
40
2
± 0.006 ppm/°C
50
60
2
70
80
M41ST84W
AI00594B
AI00999b