M41T94MQ6 STMicroelectronics, M41T94MQ6 Datasheet - Page 25
![Real Time Clock Serial 512 (64x8)](/photos/26/98/269845/so-16_sml.jpg)
M41T94MQ6
Manufacturer Part Number
M41T94MQ6
Description
Real Time Clock Serial 512 (64x8)
Manufacturer
STMicroelectronics
Datasheet
1.M41T94MQ6TR.pdf
(41 pages)
Specifications of M41T94MQ6
Function
Clock, Calendar, Alarm, Timer Interrupt
Rtc Memory Size
64 B
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
Package / Case
SO-16
Time Format
HH:MM:SS:hh
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
M41T94MQ6
Manufacturer:
ST
Quantity:
5 510
Company:
Part Number:
M41T94MQ6
Manufacturer:
RECOM
Quantity:
5 510
Company:
Part Number:
M41T94MQ6E
Manufacturer:
ST
Quantity:
5 892
Part Number:
M41T94MQ6E
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
M41T94MQ6F
Manufacturer:
ST
Quantity:
5 892
Company:
Part Number:
M41T94MQ6F
Manufacturer:
ST
Quantity:
4 960
Part Number:
M41T94MQ6F
Manufacturer:
ST
Quantity:
20 000
M41T94
4.9
Figure 14. Crystal accuracy across temperature
Figure 15. Calibration waveform
Century bit
Bits D7 and D6 of clock register 03h contain the CENTURY ENABLE bit (CEB) and the
CENTURY bit (CB). Setting CEB to a '1' will cause CB to toggle, either from a '0' to '1' or
from '1' to '0' at the turn of the century (depending upon its initial state). If CEB is set to a '0,'
CB will not toggle.
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
K = –0.036 ppm/ C
F
O
F = K x (T –T
= 25 C ± 5 C
20
30
O
)
2
40
2
± 0.006 ppm/ C
50
60
2
Clock operations
70
80
AI00999b
AI00594B
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