M48T129V-85PM1 STMicroelectronics, M48T129V-85PM1 Datasheet - Page 13

• Manufacturer Part Number: M48T129V-85PM1
• Description: IC TIMEKPR NVRAM 1MBIT 3V 32-DIP
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T129V-85PM1

• Memory Size: 1M (128K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 32-DIP (600 mil) Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2835-5

M48T129V, M48T129Y
Table 5.
Keys:
Address
1FFFEh
1FFFDh
1FFFCh
1FFFBh
1FFFFh
1FFFAh
1FFF9h
1FFF8h
1FFF7h
1FFF6h
1FFF5h
1FFF4h
1FFF3h
1FFF2h
1FFF1h
1FFF0h
S = SIGN bit
FT = FREQUENCY TEST bit
R = READ bit
W = WRITE bit
ST = STOP bit
0 = Must be set to '0'
Y = '1' or '0‘
BL = Battery low (read only)
AF = Alarm flag (read only)
WDS = Watchdog steering bit
BMB0-BMB4 = Watchdog multiplier bits
RB0-RB1 = Watchdog resolution bits
AFE = Alarm flag enable
ABE = Alarm in battery backup mode enable
RPT1-RPT5 = Alarm repeat mode bits
WDF = Watchdog flag (read only)
RPT4
RPT3
RPT2
RPT1
WDS
WDF
AFE
TIMEKEEPER
D7
ST
W
0
0
0
0
0
BMB4 BMB3 BMB2 BMB1 BMB0 RB1
RPT5
D6
AF
FT
1000 year
R
0
0
0
0
0
10 Years
Al 10 seconds
Al 10 minutes
10 seconds
10 minutes
ABE
®
D5
Al 10 hours
S
0
0
0
Al 10 date
10 hours
register map
10 date
Doc ID 5710 Rev 4
Al 10M
10 M
D4
BL
0
Data
D3
Y
0
Hours (24-hour format)
Calibration
Alarm seconds
Alarm minutes
Alarm month
Alarm hours
Alarm date
D2
Seconds
100 year
Y
Minutes
Month
Date
Day of week
Year
D1
Y
RB0
D0
Y
Watchdog
Seconds
A month
Minutes
Century
A hours
Control
Al date
Month
Hours
A min
A sec
Date
Year
Flag
Day
Function/range
Clock operations
BCD format
00-99
01-12
01-31
01-07
00-23
00-59
00-59
01-12
01-31
00-23
00-59
00-59
00-99
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