M41T56M6F STMicroelectronics, M41T56M6F Datasheet - Page 5
M41T56M6F
Manufacturer Part Number
M41T56M6F
Description
IC RTC SRL 512BIT 8SOIC
Manufacturer
STMicroelectronics
Type
Clock/Calendar/NVSRAMr
Datasheet
1.M41T56M6F.pdf
(25 pages)
Specifications of M41T56M6F
Memory Size
56B
Time Format
HH:MM:SS (24 hr)
Date Format
YY-MM-DD-dd
Interface
I²C, 2-Wire Serial
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4706-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M41T56M6F
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
5/25