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參數(shù)資料
| 型號(hào)： | DS1375T+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC SERIAL W/ALARM 6TDFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 時(shí)鐘/日歷 |
| 特點(diǎn)： | 警報(bào)器，閏年，方波輸出，涓流充電器 |
| 存儲(chǔ)容量： | 16B |
| 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： | 1.7 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 6-WDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 6-TDFN 裸露焊盤（3x3） |
| 包裝： | 帶卷 (TR) |
DS1375
I2C Digital Input RTC with Alarm
_____________________________________________________________________
7
month register) is toggled when the years register over-
flows from 99 to 00.
The day-of-week register increments at midnight.
Values that correspond to the day of week are user-
defined but must be sequential (i.e., if 1 equals
Sunday, then 2 equals Monday, and so on). Illogical
time and date entries result in undefined operation.
When reading or writing the time and date registers,
secondary (user) buffers are used to prevent errors
when the internal registers update. When reading the
time and date registers, the user buffers are synchro-
nized to the internal registers on any START or STOP
and when the register pointer rolls over to zero. The
time information is read from these secondary registers,
while the clock continues to run. This eliminates the
need to reread the registers in case the main registers
update during a read.
The countdown chain is reset whenever the seconds
register is written. Write transfers occur on the acknowl-
edge from the DS1375. Once the countdown chain is
reset, to avoid rollover issues the remaining time and
date registers must be written within 1 second. The 1Hz
square-wave output, if enabled, transitions high 500ms
after the seconds data transfer, provided the clock
input is already being driven.
Table 1. Timekeeping Registers and SRAM
ADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FUNCTION
RANGE
00h
0
10 Seconds
Seconds
00–59
01h
0
10 Minutes
Minutes
00–59
AM/PM
02h
0
12/24
10 Hours
Hours
1–12 + AM/PM
00–23
03h
0
Day
1–7
04h
0
10 Date
Date
00–31
05h
Century
0
10
Month
Months
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
AM/PM
09h
A1M3
12/24
10 Hours
Hours
Alarm 1 Hours
1–12 + AM/PM
00–23
Day
Alarm 1 Day
1–7
0Ah
A1M4
DY/DT
10 Date
Date
Alarm 1 Date
1–31
0Bh
A2M2
10 Minutes
Minutes
Alarm 2 Minutes
00–59
AM/PM
0Ch
A2M3
12/24
10 Hours
Hours
Alarm 2 Hours
1–12 + AM/PM
00–23
—
Day
Alarm 2 Day
1–7
0Dh
A2M4
DY/DT
10 Date
Date
Alarm 2 Date
1–31
0Eh
ECLK
CLKSEL1
CLKSEL0
RS2
RS1
INTCN
A2IE
A1IE
Control
—
0Fh
0
A2F
A1F
Control/
Status
—
10h–1Fh
B7
B6
B5
B4
B3
B2
B1
B0
SRAM
00–FFH
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