M41T56M6 STMicroelectronics, M41T56M6 Datasheet - Page 5
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M41T56M6
Manufacturer Part Number
M41T56M6
Description
Real Time Clock Serial 512 (64x8)
Manufacturer
STMicroelectronics
Datasheet
1.M41T56M6.pdf
(25 pages)
Specifications of M41T56M6
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
SO-8
Time Format
HH:MM:SS
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M41T56M6
Manufacturer:
ST
Quantity:
20 000
Part Number:
M41T56M6E
Manufacturer:
ST
Quantity:
20 000
Part Number:
M41T56M6F
Manufacturer:
ST
Quantity:
20 000
Part Number:
M41T56M6TR
Manufacturer:
ST
Quantity:
20 000
1
Description
The M41T56 is a low power, serial real-time clock with 56 bytes of NVRAM. A built-in
32,768Hz oscillator (external crystal controlled) and the first 8 bytes of the RAM are used for
the clock/calendar function and are configured in binary coded decimal (BCD) format.
Addresses and data are transferred serially via a two-line, bidirectional bus. The built-in
address register is incremented automatically after each WRITE or READ data byte.
The M41T56 clock has a built-in power sense circuit which detects power failures and
automatically switches to the battery supply during power failures. The energy needed to
sustain the RAM and clock operations can be supplied from a small lithium coin cell.
Typical data retention time is in excess of 10 years with a 50mAh, 3V lithium cell. The
M41T56 is supplied in an 8-lead plastic SOIC package.
Figure 1.
Logic diagram
OSCI
SCL
V CC
V SS
M41T56
V BAT
OSCO
SDA
FT/OUT
AI02304B
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