M41T81MX6 STMicroelectronics, M41T81MX6 Datasheet - Page 10

• Manufacturer Part Number: M41T81MX6
• Description: IC RTC SERIAL W/ALARM 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T81MX6

• Memory Size: 20B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-2822-5

Operation
Figure 6.
Figure 7.
Figure 8.
10/29
BUS ACTIVITY:
MASTER
SDA LINE
BUS ACTIVITY:
BUS ACTIVITY:
MASTER
SDA LINE
BUS ACTIVITY:
An alternate READ mode may also be implemented whereby the master reads the M41T81
slave without first writing to the (volatile) address pointer. The first address that is read is the
last one stored in the pointer (see
Slave address location
READ mode sequence
Alternative READ mode sequence
S
ADDRESS
SLAVE
S
ADDRESS
SLAVE
START
DATA n+X
ADDRESS (An)
WORD
P
DATA n
1
Doc ID 7529 Rev 10
1
SLAVE ADDRESS
Figure 8 on page
S
0
ADDRESS
1
SLAVE
DATA n+1
0
0
0
R/W
10).
A
DATA n
DATA n+X
DATA n+1
P
AI00602
AI00899
AI00895
M41T81