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DS1337+ 其他数据使用手册 - Dallas Semiconductor（达拉斯半导体）
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DS1337+数据手册
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DS1337
I
2
C Serial Real-Time Clock
1 of 15 REV: 092706
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata
.
www.maxim-ic.com
GENERAL DESCRIPTION
The DS1337 serial real-time clock is a low-power
clock/calendar with two programmable time-of-day
alarms and a programmable square-wave output.
Address and data are transferred serially through an
I
2
C* bus. The clock/calendar provides 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
AM/PM indicator.
APPLICATIONS
Handhelds (GPS, POS Terminal, MP3 Player)
Consumer Electronics (Set-Top Box, VCR/Digital
Recording)
Office Equipment (Fax/Printer, Copier)
Medical (Glucometer, Medicine Dispenser)
Telecommunications (Router, Switch, Server)
Other (Utility Meter, Vending Machine, Thermostat,
Modem)
TYPICAL OPERATING CIRCUIT
FEATURES
Real-Time Clock (RTC) Counts Seconds,
Minutes, Hours, Day, Date, Month, and Year
with Leap-Year Compensation Valid Up to
2100
Available in a Surface-Mount Package with an
Integrated Crystal (DS1337C)
I
2
C Serial Interface
Two Time-of-Day Alarms
Oscillator Stop Flag
Programmable Square-Wave Output
Defaults to 32kHz on Power-Up
Available in 8-Pin DIP, SO, or µSOP
-40°C to +85°C Operating Temperature Range
ORDERING INFORMATION
PART TEMP RANGE PIN-PACKAGE
TOP
MARK†
DS1337 -40°C to +85°C 8 DIP (300 mils) DS1337
DS1337+ -40°C to +85°C 8 DIP (300 mils) DS1337
DS1337S -40°C to +85°C 8 SO (150 mils) DS1337
DS1337S+ -40°C to +85°C 8 SO (150 mils) DS1337
DS1337U -40°C to +85°C
8 µSOP
1337
DS1337U+ -40°C to +85°C
8 µSOP
1337
DS1337C -40°C to +85°C 16 SO (300 mils) DS1337C
DS1337C# -40°C to +85°C 16 SO (300 mils) DS1337C
+ Denotes a lead-free/RoHS-compliant device.
# Denotes a RoHS-compliant device that may include lead that is
exempt under the RoHS requirements. The lead finish is JESD97
category e3, and is compatible with both lead-based and lead-free
soldering processes.
† A “+” anywhere on the top mark denotes a lead-free device. A
“#” denotes a RoHS-compliant device.
Pin Configurations appear at end of data sheet.
*Purchase of I
2
C components from Maxim Integrated Products, Inc.,
or one of its sublicensed Associated Companies, conveys a license
under the Philips I
2
C Patent Rights to use these components in an I
2
C
system, provided that the system conforms to the I
2
C Standard
Specification as defined by Philips.
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