M41ST85YMH6E STMicroelectronics, M41ST85YMH6E Datasheet - Page 9

• Manufacturer Part Number: M41ST85YMH6E
• Description: IC RTC 5.0V 512BIT NVRAM 28SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST85YMH6E

• Memory Size: 64B
• Time Format: HH:MM:SS:hh (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: 28-SOIC, 28-SOH (8.48mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-2806-5; M41ST85YMH6

Figure 8. Serial Bus Data Transfer Sequence
Figure 9. Acknowledgement Sequence
Figure 10. WRITE Cycle Timing: RTC & External SRAM Control Signals
SCL FROM
MASTER
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
EX
E CON
CLOCK
DATA
CONDITION
START
START
tEXPD
MSB
1
DATA VALID
DATA LINE
STABLE
DATA ALLOWED
CHANGE OF
2
tEXPD
LSB
8
M41ST85Y, M41ST85W
ACKNOWLEDGEMENT
CLOCK PULSE FOR
CONDITION
STOP
9
AI00587
AI00601
AI03663
9/34