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参数资料
| 型号： | DS1388Z-3+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/19页 |
| 文件大小： | 0K |
| 描述： | IC RTC I2C W/CHARGER 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 时钟/日历 |
| 特点： | EEPROM，闰年，监控器，涓流充电器，监视计时器 |
| 存储容量： | 512B |
| 时间格式： | HH:MM:SS:hh（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.7 V ~ 3.3 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： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
I2C RTC/Supervisor with Trickle Charger
and 512 Bytes EEPROM
Maxim Integrated
11
DS1388
ADDRESS
BLK
WORD
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FUNCTION
RANGE
0h
00h
Tenth Seconds
Hundredths of Seconds
Hundredths of
Seconds
00–99
0h
01h
0
10 Seconds
Seconds
00–59
0h
02h
0
10 Minutes
Minutes
00–59
AM/
PM
10 Hour
0h
03h
0
12/24
10 Hour
Hours
1–12+
AM/PM
00–23
0h
04h
0
X
Day
01–07
0h
05h
0
10 Date
Date
01–31
0h
06h
0
X
10
Month
01–12
0h
07h
10 Year
Year
00–99
0h
08h
Watchdog Tenths of Seconds
Watchdog Hundredths of Seconds
Watchdog
Hundredth
Seconds
00–99
0h
09h
Watchdog Ten Seconds
Watchdog Seconds
Watchdog
Seconds
00–99
0h
0Ah
TCS3
TCS2
TCS1
TCS0
DS1
DS0
ROUT1
ROUT0
Trickle Charger
—
0h
0Bh
OSF
WF
0
Flag
—
0h
0Ch
EOSC
0
WDE
WD/RST
Control
—
1h
00–FFh
256 x 8 EEPROM
EEPROM
00–FFh
2h
00–FFh
256 x 8 EEPROM
EEPROM
00–FFh
Figure 4. Address Map
Note: Unless otherwise specified, the state of the registers is not defined when power (VCC and VBACKUP) is first applied.
X = General-purpose read/write bit.
0 = Always reads as a zero.
Clock and Calendar
The time and calendar information is obtained by read-
ing the appropriate register bytes. Figure 4 illustrates
the RTC registers. The time and calendar are set or ini-
tialized by writing the appropriate register bytes. The
contents of the time and calendar registers are in the
binary-coded decimal (BCD) format. The end of the
month date is automatically adjusted for months with
fewer than 31 days, including corrections for leap years
through 2099. 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 oper-
ation. The DS1388 can be run in either 12-hour or 24-
hour mode. Bit 6 of the hours register is defined as the
12- 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). Changing
the 12/24 bit requires that the hours data be re-entered
in the proper format.
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相关代理商/技术参数 |
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|---|---|
| DS1388Z-5 | 功能描述:实时时钟 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 |
| DS1388Z-5+ | 功能描述:实时时钟 I2C RTC/Supervisor w/Trickle Charger 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 |
| DS1390 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| DS1390_07 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| DS1390_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
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