制造商: Analog Devices Inc.
产品种类: 实时时钟
RoHS: 详细信息
安装风格: SMD/SMT
封装 / 箱体: uSOP-10
RTC 总线接口: Serial
日期格式: YY-MM-DD-dd
时间格式: HH:MM:SS:hh (12 hr, 24 hr)
电池备用开关: Backup Switching
电源电压-最大: 5.5 V
电源电压-最小: 2.97 V
最小工作温度: - 40 C
最大工作温度: + 85 C
封装: Reel
封装: Cut Tape
封装: MouseReel
商标: Analog Devices / Maxim Integrated
功能: Alarm, Calendar, Clock, Trickle Charger
产品类型: Real Time Clocks
系列: DS1390U
3000
子类别: Clock & Timer ICs
零件号别名: DS1390U 90-1390U+33T
单位重量: 23 mg
The low-voltage serial-peripheral interface (SPI™)
DS1390/DS1391/DS1394 and_the low-voltage 3-wire
DS1392/DS1393 real-time clocks (RTCs) are clocks/
calendars 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 separate interrupt pin or a RST output/debounced input.
All five devices are available in a 10-pin µSOP package,
and_are rated over the industrial temperature range.
