M41ST87WMX6 STMicroelectronics, M41ST87WMX6 Datasheet - Page 14

• Manufacturer Part Number: M41ST87WMX6
• Description: IC SUPERVISOR RTC 160X8 28-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST87WMX6

• Memory Size: 160B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 160 Byte
• Supply Voltage (max): 3.6 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 (2-Wire, I2C)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5370-5; M41ST87WMX6

Operating modes
Figure 6.
Figure 7.
Figure 8.
14/54
SCL FROM
MASTER
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
CLOCK
DATA
SDA
SCL
case the transmitter must leave the data line high to enable the master to generate the
STOP condition.
Serial bus data transfer sequence
Acknowledgement sequence
Bus timing requirements sequence
t BUF
CONDITION
P
START
START
S
MSB
1
t HD:STA
t R
DATA VALID
DATA LINE
STABLE
t LOW
Doc ID 9497 Rev 9
t HIGH
t F
DATA ALLOWED
CHANGE OF
2
t HD:DAT
t SU:DAT
LSB
8
SR
t SU:STA
ACKNOWLEDGEMENT
CLOCK PULSE FOR
M41ST87Y, M41ST87W
t HD:STA
CONDITION
STOP
9
AI00587
AI00601
P
AI00589
t SU:STO