商品詳情
制造商: Analog Devices Inc.
產(chǎn)品種類: 實時時鐘
RoHS: 詳細(xì)信息
安裝風(fēng)格: SMD/SMT
封裝 / 箱體: uSOP-10
RTC 總線接口: Serial
日期格式: YY-MM-DD-dd
時間格式: HH:MM:SS:hh (12 hr, 24 hr)
電池備用開關(guān): Backup Switching
電源電壓-最大: 5.5 V
電源電壓-最小: 2.97 V
最小工作溫度: - 40 C
最大工作溫度: + 85 C
封裝: Reel
封裝: Cut Tape
封裝: MouseReel
商標(biāo): Analog Devices / Maxim Integrated
功能: Alarm, Calendar, Clock, Trickle Charger
產(chǎn)品類型: Real Time Clocks
系列: DS1390U
3000
子類別: Clock & Timer ICs
零件號別名: DS1390U 90-1390U+33T
單位重量: 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.