参数资料
| 型号： | DS1391U-33+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC RTC W/CHARGER 10-USOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 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:hh（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | SPI |
| 电源电压： | 2.97 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： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-µMAX |
| 包装： | 管件 |
| 产品目录页面： | 1434 (CN2011-ZH PDF) |
19-4898; Rev 4; 10/12
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
DS1390–DS1394
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
General Description
The low-voltage serial-peripheral interface (SPI)
DS1390/DS1391/DS1394 and the low-voltage 3-wire
DS1392/DS1393 real-time clocks (RTCs) are clocks/cal-
endars that provide hundredths of a second, seconds,
minutes, hours, day, date, month, and year information.
The date at the end of the month is automatically
adjusted for months with fewer than 31 days, including
corrections for leap year. The clock operates in either
the 24-hour or 12-hour format with an AM/PM indicator.
One programmable time-of-day alarm is provided. A
temperature-compensated voltage reference monitors
the status of VCC and automatically disables the bus
interface and switches to the backup supply if a power
failure is detected. On the DS1390, a single open-drain
output provides a CPU interrupt or a square wave at
one of four selectable frequencies. The DS1391
replaces the SQW/INT pin with a RST output/
debounced input.
The DS1390, DS1391, and DS1394 are programmed
serially through an SPI-compatible, bidirectional bus.
The DS1392 and DS1393 communicate over a 3-wire
serial bus, and the extra pin is used for either a sepa-
rate interrupt pin or a RST output/debounced input.
All five devices are available in a 10-pin SOP package,
and are rated over the industrial temperature range.
Applications
Hand-Held Devices
GPS/Telematics Devices
Embedded Time Stamping
Medical Devices
Features
o Real-Time Clock Counts Hundredths of Seconds,
Seconds, Minutes, Hours, Day, Date, Month, and
Year with Leap-Year Compensation Valid Up to
2100
o Output Pin Configurable as Interrupt or Square
Wave with Programmable Frequency of
32.768kHz, 8.192kHz, 4.096kHz, or 1Hz
(DS1390/DS1393/DS1394 Only)
o One Time-of-Day Alarm
o Power-Fail Detect and Switch Circuitry
o Reset Output/Debounced Input (DS1391/DS1393)
o Separate SQW and INT Output (DS1392)
o Trickle-Charge Capability
o SPI Supports Modes 0 and 2 (DS1394)
o SPI Supports Modes 1 and 3 (DS1390/DS1391)
o 3-Wire Interface (DS1392/DS1393)
o 4MHz at 3.0V and 3.3V
o 1MHz at 1.8V
o Three Operating Voltages: 1.8V ±5%, 3.0V ±10%,
and 2.97 to 5.5V (DS1394: 3.3V ±10%)
o Industrial Temperature Range: -40°C to +85°C
o Underwriters Laboratories (UL) Recognized
Ordering Information
Typical Operating Circuits and Pin Configurations appear at
end of the data sheet.
Note: All devices are rated for the -40°C to +85°C operating
temperature range.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
A “+” anywhere on the top mark denotes a lead(Pb)-
free/RoHS-compliant package.
rr = Revision code on second line of top mark.
PART
TYP
OPERATING
VOLTAGE (V)
PIN-
PACKAGE
TOP MARK
DS1390U-18+
1.8
10 SOP
1390 rr-18
DS1390U-3+
3.0
10 SOP
1390 rr-3
DS1390U-33+
3.3
10 SOP
1390 rr-33
DS1391U-18+
1.8
10 SOP
1391 rr-18
DS1391U-3+
3.0
10 SOP
1391 rr-3
DS1391U-33+
3.3
10 SOP
1391 rr-33
DS1392U-18+
1.8
10 SOP
1393 rr-18
DS1392U-3+
3.0
10 SOP
1392 rr-3
DS1392U-33+
3.3
10 SOP
1392 rr-33
DS1393U-18+
1.8
10 SOP
1393 rr-18
DS1393U-3+
3.0
10 SOP
1393 rr-3
DS1393U-33+
3.3
10 SOP
1393 rr-33
DS1394U-33+
3.3
10 SOP
1394 rr-33
SPI is a trademark of Motorola, Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1391U-33/T&R | 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 |
| DS1391U-33+ | 功能描述:实时时钟 Low-V SPI/3-Wire With 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 |
| DS1391U-33+T&R | 制造商:Maxim Integrated Products 功能描述:DS1391U-33 T&R RTC 3.3V USOP PB-FRE 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 10PIN UMAX - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC W/CHARGER 10-USOP 制造商:Maxim Integrated Products 功能描述:Real Time Clock Low-V SPI/3-Wire With Trickle Charger |
| DS1391U-33+T&R | 功能描述:实时时钟 Low-V SPI/3-Wire With 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 |
| DS1392 | 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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