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参数资料
| 型号： | DS1390 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| 中文描述： | 低电压SPI/3线接口RTC，带有涓流充电器 |
| 文件页数： | 1/24页 |
| 文件大小： | 742K |
| 代理商： | DS1390 |
General Description
The low-voltage serial-peripheral interface (SPI)
DS1390/DS1391 and the low-voltage 3-wire DS1392/
DS1393 real-time clocks (RTCs) are clocks/calendars
that provide hundredths of a second, seconds, min-
utes, 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 V
CC
and automatically 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 fre-
quencies. The DS1391 replaces the SQW/
INT
pin with a
RST
output/debounced input.
The DS1390 and DS1391 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 separate
interrupt pin or a
RST
output/debounced input.
All four devices are available in a 10-pin μSOP package,
and are rated over the industrial temperature range.
Applications
Hand-Held Devices
GPS/Telematics Devices
Embedded Time Stamping
Medical Devices
Features
Real-Time Clock Counts Hundredths of Seconds,
Seconds, Minutes, Hours, Day, Date, Month, and
Year with Leap-Year Compensation Valid Up to
2100
Output Pin Configurable as Interrupt or Square
Wave with Programmable Frequency of
32.768kHz, 8.192kHz, 4.096kHz, or 1Hz
(DS1390/DS1393 Only)
One Time-of-Day Alarm
Power-Fail Detect and Switch Circuitry
Reset Output/Debounced Input (DS1391/DS1393)
Separate SQW and INT Output (DS1392)
Trickle-Charge Capability
SPI Supports Modes 1 and 3 (DS1390/DS1391)
3-Wire Interface (DS1392/DS1393)
4MHz at 3.0V and 3.3V
1MHz at 1.8V
Three Operating Voltages: 1.8V ±5%, 3.0V ±10%,
and 2.97 to 5.5V
Industrial Temperature Range: -40°C to +85°C
Underwriters Laboratory (UL) Recognized
D
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
______________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
Rev 0; 7/04
Typical Operating Circuits and Pin Configurations appear at
end of the data sheet.
Where “rr” is a revision code on the second line of the top mark.
PART
TEMP RANGE
PIN-
PACKAGE
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
10 μSOP
TOP MARK
DS1390
U-18
DS1390U-3
DS1390U-33
DS1391
U-18
DS1391U-3
DS1391U-33
DS1392
U-18
DS1392U-3
DS1392U-33
DS1393
U-18
DS1393U-3
DS1393U-33
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
DS1390 rr-18
DS1390 rr-3
DS1390 rr-33
DS1391 rr-18
DS1391 rr-3
DS1391 rr-33
DS1393 rr-18
DS1392 rr-3
DS1392 rr-33
DS1393 rr-18
DS1393 rr-3
DS1393 rr-33
SPI is a trademark of Motorola, Inc.
相关PDF资料 |
PDF描述 |
|---|---|
| DS1392U-33 | Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| DS1391U-3 | IGBT Module; Continuous Collector Current, Ic:200A; Collector Emitter Saturation Voltage, Vce(sat):3.4V; Power Dissipation, Pd:1500W; Collector Current:200A; Collector Emitter Voltage, Vceo:1.2kV; Leaded Process Compatible:No RoHS Compliant: No |
| DS1391U-33 | Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| DS1390U-3 | Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
| DS1390U-33 | Low-Voltage SPI/3-Wire RTCs with Trickle Charger |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| DS1390-DS1393 | 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 |
| DS1390U+18 | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 10USOP - Bulk |
| DS1390U+3 | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 10USOP - Bulk |
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