M48T37V-10MH6 STMicroelectronics, M48T37V-10MH6 Datasheet - Page 13

• Manufacturer Part Number: M48T37V-10MH6
• Description: Real Time Clock 256K (32Kx8) 100ns
• Manufacturer: STMicroelectronics

Specifications of M48T37V-10MH6

• Function: Clock, Calendar, NV Timekeeping RAM, Watchdog Timer, Battery Backup, Alarm
• Rtc Memory Size: 32768 B
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Parallel
• Package / Case: SOIC-44
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M48T37Y, M48T37V
Table 5.
Keys:
Address
7FFEh
7FFDh
7FFCh
7FFBh
7FFFh
7FFAh
7FF9h
7FF8h
7FF7h
7FF6h
7FF5h
7FF4h
7FF3h
7FF2h
7FF1h
7FF0h
S = Sign bit
FT = Frequency test bit
R = READ bit
W = WRITE bit
ST = Stop bit
0 = Must be set to '0'
BL = Battery low flag (read only)
BMB0-BMB4 = Watchdog multiplier bits
AFE = Alarm flag enable flag
RB0-RB1 = Watchdog resolution bits
WDS = Watchdog steering bit
ABE = Alarm in battery backup mode enable bit
RPT1-RPT4 = Alarm repeat mode bits
WDF = Watchdog flag (read only)
AF = Alarm flag (read only)
Z = '0' and are read only
RPT4
RPT3
RPT2
RPT1
WDS
WDF
AFE
Register map
D7
ST
W
0
0
0
0
0
BMB4 BMB3
D6
AF
FT
R
0
0
0
0
0
0
Alarm 10 seconds
1000 year
Alarm 10 minutes
10 years
10 seconds
10 minutes
AIarm 10 hours
AIarm 10 date
ABE
D5
S
0
0
Z
10 hours
10 date
Doc ID 7019 Rev 9
BMB2 BMB1 BMB0
10 M
D4
BL
0
0
Data
D3
Z
0
0
Date: Day of month
Calibration
Alarm seconds
Alarm minutes
Alarm hours
D2
Alarm date
Z
0
Seconds
100 year
Minutes
Month
Hours
Day of week
Year
RB1
D1
Z
0
RB0
D0
Z
0
Alarm hour
Alarm date
Watchdog
Alarm min
Alarm sec
Interrupts
Century
Control
Month
Hours
Clock operations
Function/range
Flags
Date
Year
Day
Sec
Min
BCD format
00-99
01-12
01-31
00-23
00-59
00-59
01-31
00-23
00-59
00-59
00-99
01-7
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