DS1372 데이터 시트보기 (PDF) - Maxim Integrated
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DS1372 Datasheet PDF : 12 Pages
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Rev 0; 7/07
I2C, 32-Bit, Binary Counter Clock with 64-Bit ID
General Description
The DS1372 is a 32-bit binary up counter and 24-bit
down counter with a unique 64-bit ID. The counters, ID,
configuration, and status registers are accessed using
an I2C serial interface. The DS1372 includes a
SQW/INT open-drain output that can output either a
square wave at one of four predefined frequencies, or it
can output an active-low signal when the 24-bit down
counter reaches 0.
Applications
Portable Audio and Video Players
Pin Configuration
TOP VIEW
+
X1 1
X2 2
AD0 3
DS1372
GND 4
μSOP
8 VCC
7 SQW/INT
6 SCL
5 SDA
Features
♦ Compliant with Microsoft Windows Media® DRM
10 for Portable Devices
♦ 32-Bit Binary Counter
♦ Programmable Alarm
♦ 64-Bit Factory-Programmed ID
♦ Interrupt Output
♦ I2C Serial Interface
♦ Two Selectable I2C Addresses
♦ 2.4V to 5.5V Operating Voltage Range
♦ 1.3V to 5.5V Timekeeping Operating Range
♦ -40°C to +85°C Operating Temperature Range
♦ 8-Pin µSOP
Ordering Information
PART
TEMP RANGE PIN-PACKAGE TOP
MARK
DS1372U+ -40°C to +85°C 8 μSOP
1372
+Denotes a lead-free package. This symbol also appears on the
top mark.
Windows Media is a registered trademark of Microsoft Corp.
Typical Operating Circuit
VCC
CRYSTAL VCC
VCC RPU
RPU
CPU
RPU = tR / CB
X1
SCL
X2 VCC
SQW/INT
DS1372
SDA
AD0
GND
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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