±5ppm, I2C Real-Time Clock 11 Maxim Integrated DS3231M Clock and Calendar The ti" />
參數(shù)資料
型號(hào): DS3231MZ+
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 3/20頁(yè)
文件大小: 0K
描述: IC RTC I2C 8SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 100
類(lèi)型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,閏年,方波輸出
時(shí)間格式: HH:MM:SS(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: I²C,2 線串口
電源電壓: 2.3 V ~ 5.5 V
電壓 - 電源,電池: 2.3 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 管件
±5ppm, I2C Real-Time Clock
11
Maxim Integrated
DS3231M
Clock and Calendar
The time and calendar information is obtained by read-
ing the appropriate register bytes. Table 2 shows the
RTC registers. The time and calendar data are set or
initialized by writing the appropriate register bytes. The
contents of the time and calendar registers are in the
binary-coded decimal (BCD) format. The device can
be run in either 12-hour or 24-hour mode. Bit 6 of the
Hours register is defined as the 12-hour or 24-hour mode
select bit. When high, the 12-hour mode is selected. In
the 12-hour mode, bit 5 is the AM/PM bit with logic-high
being PM. In the 24-hour mode, bit 5 is the 20-hour bit
(20–23 hours). The century bit (bit 7 of the Month regis-
ter) is toggled when the Years register overflows from 99
Table 2. Timekeeping Registers
Note: Unless otherwise specified, the registers’ state is not defined when power is first applied.
ADDRESS
BIT 7
MSB
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LSB
FUNCTION
RANGE
00h
0
10 Seconds
Seconds
00–59
01h
0
10 Minutes
Minutes
00–59
02h
0
12/24
AM/PM
10
Hours
Hour
Hours
1–12 +
AM/PM
00–23
20
Hours
03h
0
Day
1–7
04h
0
10 Date
Date
01–31
05h
Century
0
10
Month
Month/Century
01–12 +
Century
06h
10 Year
Year
00–99
07h
A1M1
10 Seconds
Seconds
Alarm 1
Seconds
00–59
08h
A1M2
10 Minutes
Minutes
Alarm 1
Minutes
00–59
09h
A1M3
12/24
AM/PM
10
Hours
Hour
Alarm 1 Hours
1–12 +
AM/PM
00–23
20
Hours
0Ah
A1M4
DY/DT
10 Date
Day
Alarm 1 Day
1–7
Date
Alarm 1 Date
1–31
0Bh
A2M2
10 Minutes
Minutes
Alarm 2
Minutes
00–59
0Ch
A2M3
12/24
AM/PM
10
Hours
Hour
Alarm 2 Hours
1–12 +
AM/PM
00–23
20
Hours
0Dh
A2M4
DY/DT
10 Date
Day
Alarm 2 Day
1–7
Date
Alarm 2 Date
1–31
0Eh
EOSC
BBSQW
CONV
NA
INTCN
A2IE
A1IE
Control
0Fh
OSF
0
EN32KHZ
BSY
A2F
A1F
Status
10h
SIGN
DATA
Aging Offset
81h–7Fh
11h
SIGN
DATA
Temperature
MSB
12h
DATA
0
Temperature
LSB
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