Rainbow Electronics DS1371 User Manual
General description, Applications, Typical configuration
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General Description
The DS1371 is a 32-bit binary counter that is
designed to continuously count time in seconds.
An additional counter that can generate a
periodic alarm or serve as a watchdog timer is
also provided. If enabled as a watchdog timer,
the watchdog strobe input pin provides a
hardware reset of the counter. If disabled, this
counter can be used as 3 Bytes of general-
purpose RAM. A configurable output can be
used as an interrupt or provide a square wave at
one of four selectable frequencies. The device is
programmed serially through a 2-wire
bidirectional bus.
Applications
Servers
Point-of-Sale Equipment
Portable Instruments
Elapsed Time Measurements
Typical Configuration
Features
§ 32-Bit Binary Counter
§ 24-Bit Binary Counter Provides Periodic
Alarm, Watchdog Timer, or RAM
§ Strobe Input to Reset Watchdog Timer
§ Single Output Configurable as Interrupt or
Square Wave
§ 2-Wire Serial Interface
§ Low-Voltage Operation
§ Operating Temperature Range:
-40°C to +85°C
§ Available in 8-Pin mSOP
Ordering Information
PART TEMP
RANGE
PIN-
PACKAGE
TOP
MARK
DS1371U
-40°C to +85°C
8 µSOP
DS1371
Pin Configuration
Package Dimension Information is available at:
DS1371
2-Wire, 32-Bit Binary Counter
Watchdog Clock
www.maxim-ic.com
TOP VIEW
X1
X2
WDS
GND
1
2
3
4
8
7
6
5
V
CC
SQW/
INT
SCL
SDA
DS1371