参数资料
| 型号： | DS1341T+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC RTC I2C W/ALARM 6TDFN-EP |
| 标准包装： | 50 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年，方波输出 |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 电压 - 电源，电池： | 1.3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
9
Maxim Integrated
Low-Current I2C RTCs for High-ESR Crystals
DS1341/DS1342
the ECLK bit is set. The external clock reference must be
within the defined frequency tolerance prior to initializing
the LOS flag.
Register Map
Table 1 shows the map for the DS1341/DS1342 regis-
ters. During a multibyte access, if the address pointer
reaches the end of the register space (0Fh), it wraps
around to location 00h. On either an I2C START or
address pointer incrementing to location 00h, the current
time is transferred to a second set of registers. 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.
I2C Interface
The I2C interface is guaranteed to operate when VCC is
between 1.8V and 5.5V and the EOSC bit is 0. The I2C
interface is accessible whenever VCC is at a valid level.
To prevent invalid device operation, the I2C interface
should not be accessed when VCC is below +1.8V.
If a microcontroller connected to the DS1341/DS1342
resets during I2C communications, it is possible that the
microcontroller and the DS1341/DS1342 could become
unsynchronized. When the microcontroller resets, the
DS1341/DS1342 I2C interface can be placed into a
known state by holding SCL low for tTIMEOUT. Doing so
limits the minimum frequency at which the I2C interface
can be operated. If data is being written to the device
Table 1. Register Map
Note: Bits listed as 0 always read back as 0 and cannot be written to a 1.
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
02h
0
12/24
AM/PM
10hr
Hour
Hours
1–12+AM/PM
00–23
10hr
03h
0
Day
1–7
04h
0
10 Date
Date
01–31
05h
CENT
0
10 MO
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
10hr
Hour
Alarm 1
Hours
1–12 + AM/PM
00–23
10hr
0Ah
A1M4
DY/DT
10 Date
Day,
Date
Alarm 1 Day,
Alarm 1 Date
1–7
1–31
0Bh
A2M2
10 Minutes
Minutes
Alarm 2
Minutes
00–59
0Ch
A2M3
12/24
AM/PM
10hr
Hour
Alarm 2
Hours
1–12 + AM/PM
00–23
10hr
0Dh
A2M4
DY/DT
10 Date
Day,
Date
Alarm 2 Day,
Alarm 2 Date
1–7
1–31
0Eh
EOSC
0
EGFIL
RS2
RS1
INTCN
A2IE
A1IE
Control
—
0Fh
OSF
DOSF
LOS
CLKSEL2 CLKSEL1
ECLK
A2F
A1F
Control/
Status
—
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相关代理商/技术参数 |
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|---|---|
| DS1341T+ | 功能描述:实时时钟 I2C RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1341T+T&R | 制造商:Maxim Integrated Products 功能描述:I2C RTC 6PF TDFN PB FREE T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC I2C W/ALARM 8TDFN |
| DS1341T+T&R | 功能描述:实时时钟 I2C RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1341U+ | 功能描述:实时时钟 I2C RTC 6pF RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1341U+T&R | 制造商:Maxim Integrated Products 功能描述:LOW-CURRENT I?C RTC FOR HIGH-ESR CRYSTALS - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC I2C W/ALARM 8USOP |
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