M41T81MX6TR STMicroelectronics, M41T81MX6TR Datasheet - Page 6
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M41T81MX6TR
Manufacturer Part Number
M41T81MX6TR
Description
Real Time Clock Serial 512 (64x8)
Manufacturer
STMicroelectronics
Datasheet
1.M41T81M6.pdf
(29 pages)
Specifications of M41T81MX6TR
Function
Clock, Calendar, Alarm, Timer Interrupt
Rtc Memory Size
20 B
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial
Package / Case
SO-28
Time Format
HH:MM:SS:hh
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Description
Figure 2.
Figure 3.
1. Open drain output
2. Square wave function has the highest priority on IRQ/FT/OUT/SQW output.
3. V
6/29
CRYSTAL
SO
= V
V
SDA
SCL
BAT
CC
8-pin SOIC (M) connections
Block diagram
– 0.5 V (typ)
V
BAT
V
SO
(3)
OSCILLATOR
INTERFACE
COMPARE
32KHz
I
2
C
PROTECT
WRITE
V
V
XO
BAT
SS
XI
Doc ID 7529 Rev 10
1
2
3
4
M41T81
FREQUENCY TEST
REAL TIME CLOCK
OUTPUT DRIVER
& CALIBRATION
SQUARE WAVE
RTC W/ALARM
WATCHDOG
CALENDAR
5
8
7
6
V
IRQ/FT/OUT/SQW
SCL
SDA
CC
INTERNAL
POWER
AFE
SQWE
FT
OUT
IRQ/FT/OUT/SQW
AI04769
AI04616
M41T81
(1,2)