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参数资料
| 型号： | DS1337U/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/16页 |
| 文件大小： | 0K |
| 描述： | IC RTC SERIAL 2WIRE LP 8-USOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年，方波输出，涓流充电器 |
| 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 ~ 1.8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 带卷 (TR) |
DS1337 I
2C Serial Real-Time Clock
ADDRESS MAP
Table 2 shows the address map for the DS1337 registers. During a multibyte access, when the address pointer
reaches the end of the register space (0Fh) it wraps around to location 00h. On an I
2C START, STOP, 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 may continue to run. This eliminates the need
to re-read the registers in case of an update of the main registers during a read.
Table 2. Timekeeper Registers
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 Hour
Hour
Hours
1–12
+AM/PM
00–23
03H
0
Day
1–7
04H
0
10 Date
Date
01–31
05H
Century
0
10 Month
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
AM/PM
09H
A1M3
12/
24
10 Hour
Hour
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
01–31
0BH
A2M2
10 Minutes
Minutes
Alarm 2
Minutes
00–59
AM/PM
0CH
A2M3
12/
24
10 Hour
Hour
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
01–31
0EH
EOSC
0
RS2
RS1
INTCN
A2IE
A1IE
Control
—
0FH
OSF
0
A2F
A1F
Status
—
Note: Unless otherwise specified, the state of the registers is not defined when power is first applied or VCC falls below the VOSC.
I2C INTERFACE
The I
2C interface is accessible whenever V
CC is at a valid level. If a microcontroller connected to the DS1337 resets
while reading from the DS1337 during an I
2C read, the two could become unsynchronized. The microcontroller must
terminate the last byte read with a Not-Acknowledge (NACK) to properly terminate the read. When the microcontroller
resets, the DS1337 I
2C interface may be placed into a known state by toggling SCL until SDA is observed to be at a
high level. At that point the microcontroller should pull SDA low while SCL is high, generating a START condition.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1338 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:I2C RTC with 56-Byte NV RAM |
| DS1338_08 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C RTC with 56-Byte NV RAM |
| DS1338_11 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C RTC with 56-Byte NV RAM |
| DS1338_1203 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C RTC with 56-Byte NV RAM |
| DS1338C-18 | 功能描述:实时时钟 I2C Serial RTC w/56 Byte NV RAM 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 |
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